Cisco uBR7200 Series Hardware Installation Guide

Cisco uBR7200 Series
Universal Broadband Router
Hardware Installation Guide
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Text Part Number: 78-10243-03
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OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required
to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not
installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to
comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital
devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television
communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits
controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
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domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
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Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
Copyright © 1999 - 2002 Cisco Systems, Inc.
All rights reserved.
C O N T E N T S
Preface
xi
Document Objectives
Audience
xi
xi
Document Organization
xii
Document Conventions
xiii
Obtaining Documentation xv
World Wide Web xv
Documentation CD-ROM xv
Ordering Documentation xv
Documentation Feedback xvi
Obtaining Technical Assistance xvi
Cisco.com xvi
Technical Assistance Center xvii
Cisco TAC Web Site xvii
Cisco TAC Escalation Center xvii
CHAPTER
1
Cisco uBR7200 Series Overview
1-1
Cisco uBR7200 Series Chassis 1-1
Cisco uBR7223 Chassis 1-3
Cisco uBR7246 Chassis 1-4
Cisco uBR7246VXR Chassis 1-5
Cisco uBR7200 Series Network Interface Overview 1-7
Card Slot and Logical Interface Numbering 1-7
Cisco uBR7223 1-7
Cisco uBR7246 1-8
Cisco uBR7246VXR 1-9
MAC-Layer Address 1-9
Supported System Configurations Overview
Basic Internet Access Services 1-11
VPN Services 1-12
IP Telephony Services 1-13
Telco Return 1-13
1-10
Hardware Component Descriptions 1-14
Network Processing Engine 1-15
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Contents
NPE Comparisons 1-15
Input/Output Controller 1-17
Cisco Cable Interface Cards 1-18
Cisco Cable Clock Card 1-19
Cisco Port Adapters 1-19
Cisco Port Adapter-Chassis-Release Matrix 1-20
Power Supplies 1-23
Fan Trays 1-25
Cisco uBR7223 Chassis 1-27
Cisco uBR7246 and Cisco uBR7246VXR Chassis 1-28
Subchassis and Midplane 1-28
Cisco uBR7223 Subchassis 1-29
Cisco uBR7246VXR and Cisco uBR7246 SubChassis
Flash Memory Cards 1-32
CHAPTER
2
Preparing the Cisco uBR7200 Series Router for Installation
1-30
2-1
Safety Recommendations 2-1
Lifting the Cisco uBR7200 Series Router Safely 2-2
Safety with Electricity 2-3
Preventing Electrostatic Discharge Damage 2-4
Site Requirements 2-5
AC Power 2-5
DC Power 2-6
Site Environment 2-6
Site Configuration: Maintaining Normal Operation
General Precautions 2-7
Power Considerations 2-7
Required Network Information
Before You Begin 2-8
Installation Tools
2-7
2-8
2-9
Rack-Mount and Cable Management Kit
2-9
Equipment Required to Verify Your Plant’s RF Setup
Shipping Container Contents 2-11
Verifying the Shipping Container Contents
2-10
2-11
Provisioning the Cable Headend 2-12
Two-Way Data and VoIP 2-12
Telco Return 2-12
Headend Certification 2-13
IF-to-RF Upconverter 2-13
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Diplex Filters 2-14
Receivers 2-14
DHCP, DNS, TFTP, and TD Servers 2-14
Telco Return 2-15
Dial-Up/Remote Access Servers 2-15
RADIUS Dial Security Servers 2-15
Authentication, Authorization, and Accounting Servers 2-15
VoIP Gateways and Gatekeepers 2-16
VoIP SGCP Pass-Through 2-16
Headend Wiring 2-16
Interference Considerations 2-16
Distance Limitations and Interface Specifications 2-17
Equipment Racks 2-17
Site Preparation Checklist
2-20
Component Checklists 2-21
Cisco uBR7223 Component List 2-21
Cisco uBR7246 and Cisco uBR7246VXR Component List
CHAPTER
3
Installing the Cisco uBR7200 Series Router
2-22
3-1
Cisco uBR7200 Series Router Installation Checklist
3-1
Cisco uBR7200 Series Chassis Rack-Mounting Options
Cable-Management Bracket Requirements 3-5
3-3
Installing the Brackets on the Chassis 3-7
Installing Rack-Mount Brackets on the Rear of the Chassis 3-7
Installing Rack-Mount Brackets on the Front of the Chassis 3-8
Installing Rack-Mount Brackets in the Middle of the Chassis 3-10
Installing the Chassis in the Rack 3-11
Installing the Chassis in a Workbench or Tabletop Environment 3-13
Installing the Cable-Management Bracket on a Cisco uBR7200 Series Router in a Workbench or
Tabletop Environment 3-14
Cabling 3-14
Connecting Port Adapter Cables 3-14
Connecting Cisco Cable Clock Card Cables (Cisco uBR7246VXR only)
Connecting Cable Interface Card Cables 3-15
Connecting I/O Controller Cables 3-15
3-15
Console and Auxiliary Port Connection Equipment 3-16
Console Port Signals 3-17
Auxiliary Port Signals 3-18
Fast Ethernet MII Connection Equipment 3-18
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Connecting Power 3-20
Connecting to the AC-Input Power Supply
Connecting to the DC-Input Power Supply
Powering On the Cisco uBR7200 Series Router
Configuring the Interfaces 3-26
CHAPTER
4
3-21
3-22
3-24
Connecting the Cisco uBR7200 Series Router to the Cable Headend
Two-Way Data Headend Architecture
4-2
One-Way Data Headend Architecture
4-3
RF and Digital Data Overview
4-1
4-3
Connecting and Configuring the Downstream 4-4
Installing and Configuring the Upconverter 4-4
Setting the North American Upconverter Input Level
Setting the European Upconverter Input Level 4-6
Setting the Upconverter Output Level 4-6
Testing the Upconverter Output Level 4-7
Setting the Upconverter Output Frequency 4-7
Measuring Upconverter Phase Noise Contribution 4-8
Viewing the Downstream IF Signal 4-9
Viewing the RF Output Signal 4-11
Fine-Tuning the Center Frequencies 4-13
Completing the Downstream Configuration 4-15
Testing the Downstream Configuration 4-16
4-5
Measuring the Downstream RF Signal 4-17
Measuring the Downstream RF Signal Using the Channel Power Option on a Spectrum
Analyzer 4-18
Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router 4-18
Measuring the Downstream RF Signal at the Upconverter Output 4-20
Measuring the Downstream RF Signal Using CATV Mode on a Spectrum Analyzer 4-24
Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router Using CATV
Mode 4-24
Measuring the Downstream RF Signal at the Upconverter Output Using CATV Mode 4-27
Connecting and Configuring the Upstream 4-31
Connecting the Upstream to the Optical Receiver
Testing the Upstream Configuration 4-32
4-31
Measuring the Upstream RF Signal 4-35
Measuring the Upstream RF Signal Using a Spectrum Analyzer 4-35
Analyzing the Upstream RF Signal 4-38
Using the Zero-Span Method with Adjacent Upstream Channels 4-42
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Measuring the RF Signal at the Forward Test Point on a Laser Transmitter
Configuring the Digital Signal
CHAPTER
5
Troubleshooting
4-50
4-54
5-1
Overview 5-1
Providing Information
5-1
Problem Solving with Subsystems 5-2
Identifying Startup Problems 5-3
Power Subsystem
Cooling Subsystem
5-5
5-6
Processor Subsystem 5-6
Troubleshooting the I/O Controller 5-7
Troubleshooting the Network Processing Engine 5-7
Troubleshooting Port Adapters 5-8
Troubleshooting the Cisco Cable Clock Card (Cisco uBR7246VXR only)
Troubleshooting Cable Interface Cards 5-9
Other Troubleshooting Information Websites 5-10
About Verifying the Downstream Signal
CHAPTER
6
5-10
Maintaining the Cisco uBR7200 Series Router
Online Insertion and Removal
5-8
6-1
6-1
Environmental Monitoring and Reporting Functions
Environmental Monitoring 6-2
Reporting Functions 6-4
Fan Failures 6-6
6-2
Flash Memory Card 6-7
Installing a Flash Memory Card 6-7
Removing a Flash Memory Card 6-8
Formatting a New Flash Memory Card 6-9
Copying a Bootable Image onto a Flash Memory Card 6-10
Copying Bootable Images Between Flash Memory Cards 6-11
Not Enough Memory on the Flash Memory Card 6-12
Add a New Image to the Flash Memory Card 6-12
Reformatting a Flash Memory Card 6-13
APPENDIX
A
Cisco uBR7200 Series Router Specifications
A-1
Cisco uBR7223 Physical and System Specifications
A-1
Cisco uBR7246 Physical and System Specifications
A-3
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Contents
Cisco uBR7246VXR Physical and System Specifications
APPENDIX
RF Specifications
B
A-5
B-1
DOCSIS 1.0 Transmission Characteristics B-2
Downstream RF Channel Transmission Characteristics B-2
Upstream RF Channel Transmission Characteristics B-3
DOCSIS 1.1 Transmission Characteristics B-4
Downstream RF Channel Transmission Characteristics B-4
Upstream RF Channel Transmission Characteristics B-5
EuroDOCSIS Transmission Characteristics B-6
Downstream RF Channel Transmission Characteristics B-6
Upstream RF Channel Transmission Characteristics B-7
Electrical Input and Output
APPENDIX
Cable Specifications
C
Coaxial Cables
B-8
C-1
C-1
Console and Auxiliary Port Cables and Pinouts
Identifying an RJ-45 Rollover Cable C-3
Console Port Cables and Pinouts C-3
Auxiliary Port Cables and Pinouts C-4
C-2
Fast Ethernet Port Cables and Pinouts C-5
Identifying an RJ-45 Crossover Cable C-5
Identifying an RJ-45 Straight-Through Cable
Fiber Optic Cables and Connectors
APPENDIX
D
Industry-Standard Wiring Plans
E
D-1
D-2
Telephone Wire Color Codes
APPENDIX
C-7
D-1
About Wiring Standards D-1
TIA/EIA Standards Information
Optical Fiber Color Codes
C-6
D-3
Frequency Allocation Tables E-1
Standards Comparisons E-2
NTSC Cable Television Channels and Relative Frequencies E-3
NTSC (M) Cable Television Frequencies for Japan E-8
PAL/SECAM Cable Television Channels and Relative Frequencies
E-10
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APPENDIX
F
Manufacturers for Headend Provisioning Requirements
North American Channel Plans
European Channel Plans
APPENDIX
G
G-1
G-1
G-3
Regulatory Compliance and Safety Information
5
Compliance with U.S. Export Laws and Regulations Regarding Encryption
6
Agency Standards for Cisco uBR7200 Series Routers 6
EMC Environmental Conditions for a Product Installed in the European Union
FCC Compliance for Class B Equipment 7
VCCI Compliance for Class B Equipment (Japan) 8
European Compliance 8
Port Adapter Compliance Information 8
Port Adapter Installation Safety Information
7
8
Translated Safety Warnings 10
Battery Handling Warning 10
Chassis Lifting Warning 11
Chassis Warning—Rack-Mounting and Servicing
Class 1 Laser Product Warning 15
Class 1 LED Product (Multimode) 16
DC Power Disconnection Warning 16
DC Power Supply Wiring Warning 18
Disconnect Device Warning 19
Ground Conductor Warning 20
Ground Connection Warning 21
Grounded Equipment Warning 21
Installation Warning 22
Jewelry Removal Warning 23
Lightning Activity Warning 24
Power Cabling Warning 24
Power Supply Disconnection Warning 25
Power Supply Warning 26
Product Disposal Warning 27
Qualified Personnel Warning 28
Radiation from Open Port Aperture 28
Restricted Area Warning 29
SELV Circuit Warning 30
Stacking the Chassis Warning 32
Supply Circuit Warning 32
Telecommunications Lines Warning 33
12
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TN Power Warning 34
Two Person Lifting Warning
APPENDIX
H
Site Log
34
H-1
GLOSSARY
INDEX
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Preface
This preface describes the objectives, intended audience, and organization of this document and explains
how to find additional information on related products and services. This preface contains the following
sections:
•
Document Objectives, page xi
•
Audience, page xi
•
Document Organization, page xii
•
Document Conventions, page xiii
•
Obtaining Documentation, page xv
•
Obtaining Technical Assistance, page xvi
Document Objectives
This guide provides hardware installation instructions for the Cisco uBR7200 series universal broadband
routers:
•
Cisco uBR7223
•
Cisco uBR7246
•
Cisco uBR7246VXR
The guide contains procedures to unpack, install, and connect the Cisco uBR7200 series router hardware
that enables your cable television (CATV) headend or distribution hub to support digital data and
Voice-over-IP (VoIP) services. The guide includes procedures to characterize your cable plant to ensure
that data services are reliably supported over the cable infrastructure.
Audience
This guide is intended for cable system installers and technicians who physically install and connect the
Cisco uBR7200 series universal broadband router and associated equipment at the cable headend or
distribution hub. Cable system installers and technicians should be familiar with their cable plant's base
operating parameters and service offerings.
The guide provides limited configuration information. After following applicable procedures in this
guide, refer to the “Obtaining Documentation” section on page xv for related Cisco publications that
more completely address configuration.
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Preface
Document Organization
Document Organization
This hardware installation guide is organized into the following chapters and appendixes:
Chapter Title
Description
Chapter 1, “Cisco uBR7200 Series Describes the different Cisco uBR7200 series chassis and
Overview”
components.
Chapter 2, “Preparing the Cisco
uBR7200 Series Router for
Installation”
Describes safety considerations, tools, and other equipment
required to prepare your site.
Chapter 3, “Installing the
Cisco uBR7200 Series Router”
Provides instructions about installing the chassis and connecting
the power and network interface cables.
Chapter 4, “Connecting the Cisco
uBR7200 Series Router to the
Cable Headend”
Provides instructions to connect the Cisco uBR7200 series router
to a hybrid fiber-coax (HFC) network and describes configuring
and measuring downstream and upstream portions of the HFC
network.
Chapter 5, “Troubleshooting”
Provides information about troubleshooting hardware
installations.
Chapter 6, “Maintaining the
Cisco uBR7200 Series Router”
Provides basic hardware maintenance instructions.
Appendix A, “Cisco uBR7200
Series Router Specifications”
Provides system specifications.
Appendix B, “RF Specifications”
Provides information on recommended RF settings at the
headend for both Data-over-Cable Service Interface
Specifications (DOCSIS) and EuroDOCSIS networks.
Appendix C, “Cable
Specifications”
Provides cable and cable pinout information for the
Cisco uBR7200 series routers.
Appendix D, “Industry-Standard
Wiring Plans”
Lists the telephone industry color-code schemes for 25-pair
wires including the pin numbers, optical fibers, and small wire
pairs.
Appendix E, “Frequency
Allocation Tables”
Provides information on the National Television System
Committee (NTSC) frequency map for 6-MHz channel bands
and the Phase Alternating Line (PAL) and SEquential Couleur
Avec Memoire (SECAM) frequency map for 8-MHz channel
bands.
Appendix G, “Regulatory
Compliance and Safety
Information”
Provides regulatory compliance and safety information for the
Cisco uBR7200 series router, field-replaceable units, and chassis
components as well as information on U.S. export laws and
regulations regarding encryption and decryption
Appendix F, “Manufacturers for
Headend Provisioning
Requirements”
Provides information on manufacturers, websites and product
offerings required to prepare and provision a North American or
a European cable headend to support digital data.
Appendix H, “Site Log”
Provides an example of a cable headend site log, which can be
used to keep a historical record of actions relevant to the
Cisco uBR7200 series router installation, operations, and
maintenance.
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Preface
Document Conventions
Document Conventions
This publication uses the following conventions:
•
The symbol ^ represents the key labeled Control. For example, the key combination ^z means hold
down the control key while you press the z key.
Command descriptions use these conventions:
•
Examples that contain system prompts denote interactive sessions, indicating the commands that
you should enter at the prompt. The system prompt indicates the current level of the EXEC
command interpreter. For example, the prompt Router> indicates that you should be at the user level,
and the prompt Router# indicates that you should be at the privileged level.
Access to the privileged level usually requires a password. For additional information, refer to the
related software configuration and reference documentation listed in the Cisco uBR7200 Series
Software Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
•
Commands and keywords are in boldface font.
•
Arguments for which you supply values are in italic font.
•
Elements in square brackets ([ ]) are optional.
•
Alternative but required keywords are grouped in braces ({ }) and separated by vertical bars (|).
Examples use these conventions:
Caution
Note
Timesaver
Tip
•
Terminal sessions and sample console screen displays are in
•
Information you enter is in boldface
•
Nonprinting characters, such as passwords, are in angle brackets (< >).
•
Default responses to system prompts are in square brackets ([ ]).
•
Exclamation points (!) at the beginning of a line indicate a comment line.
screen
screen
font.
font.
Means reader be careful. You are capable of doing something that might result in equipment damage or
loss of data.
Means reader take note. Notes contain helpful suggestions or references to materials not contained in
this manual.
Means the described action saves time. You can save time by performing the action described in the
paragraph.
Means the following information might help you solve a problem.
For all warning translations, refer to the “Regulatory Compliance and Safety Information” section on
page G-5.
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Preface
Document Conventions
Warning
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. To see translations of the warnings that appear
in this publication, refer to the
"Regulatory Compliance and Safety Information" section in this document.
Waarschuwing
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan
veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij
elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard
maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze
publicatie verschijnen, kunt u het gedeelte Regulatory Compliance and Safety Information
(Informatie over naleving van veiligheids- en andere voorschriften) raadplegen in dit document.
Varoitus
Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen
kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja
tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten
käännökset löydät tämän asiakirjan Regulatory Compliance and Safety Information -osasta
(määräysten noudattaminen ja tietoa turvallisuudesta).
Attention
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant
causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez
conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures
couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions
d’avertissements figurant dans cette publication, consultez la section Regulatory Compliance and
Safety Information (Conformité aux règlements et consignes de sécurité) de ce document.
Warnung
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer
Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie
sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur
Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen
Warnhinweise finden Sie im Abschnitt "Regulatory Compliance and Safety Information"
(Informationen zu behördlichen Vorschriften und Sicherheit) in diesem Dokument.
Avvertenza
Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle
persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai
circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La
traduzione delle avvertenze riportate in questa pubblicazione si trova nella documento Regulatory
Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) nel
presente documento.
Advarsel
Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du
utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser
innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se
oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i avsnittet Regulatory
Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) i dette
dokumentet.
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Preface
Obtaining Documentation
Aviso
Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos
físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos
relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir
possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte a
secção Regulatory Compliance and Safety Information (Informação de Segurança e Disposições
Reguladoras) neste documento.
¡Advertencia!
Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los
procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias
que aparecen en esta publicación, consultar la sección titulada Regulatory Compliance and Safety
Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que
aparece en este documento.
Varning!
Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada.
Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och
känna till vanligt förfarande för att förebygga skador. Om du vill se översättningar av de varningar
som visas i denna publikation, se avsnittet "Efterrättelse av föreskrifter och säkerhetsinformation"
i detta dokument.
Obtaining Documentation
The following sections explain how to obtain documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following URL:
http://www.cisco.com
Translated documentation is available at the following URL:
http://www.cisco.com/public/countries_languages.shtml
Documentation CD-ROM
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM
package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may
be more current than printed documentation. The CD-ROM package is available as a single unit or
through an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
•
Registered Cisco Direct Customers can order Cisco product documentation from the Networking
Products MarketPlace:
http://www.cisco.com/cgi-bin/order/order_root.pl
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Preface
Obtaining Technical Assistance
•
Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription
Store:
http://www.cisco.com/go/subscription
•
Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, elsewhere in North
America, by calling 800 553-NETS (6387).
Documentation Feedback
If you are reading Cisco product documentation on Cisco.com, you can submit technical comments
electronically. Click Leave Feedback at the bottom of the Cisco Documentation home page. After you
complete the form, print it out and fax it to Cisco at 408 527-0730.
You can e-mail your comments to [email protected].
To submit your comments by mail, use the response card behind the front cover of your document, or
write to the following address:
Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools by using the
Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to
the technical support resources on the Cisco TAC Web Site.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open
access to Cisco information, networking solutions, services, programs, and resources at any time, from
anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a
broad range of features and services to help you to
•
Streamline business processes and improve productivity
•
Resolve technical issues with online support
•
Download and test software packages
•
Order Cisco learning materials and merchandise
•
Register for online skill assessment, training, and certification programs
You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com,
go to the following URL:
http://www.cisco.com
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Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product,
technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC
Web Site and the Cisco TAC Escalation Center.
Inquiries to Cisco TAC are categorized according to the urgency of the issue:
•
Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities,
product installation, or basic product configuration.
•
Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably
impaired, but most business operations continue.
•
Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects
of business operations. No workaround is available.
•
Priority level 1 (P1)—Your production network is down, and a critical impact to business operations
will occur if service is not restored quickly. No workaround is available.
Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of
service contracts, when applicable.
Cisco TAC Web Site
The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The
site provides around-the-clock access to online tools, knowledge bases, and software. To access the
Cisco TAC Web Site, go to the following URL:
http://www.cisco.com/tac
All customers, partners, and resellers who have a valid Cisco services contract have complete access to
the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a
Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or
password, go to the following URL to register:
http://www.cisco.com/register/
If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com
registered user, you can open a case online by using the TAC Case Open tool at the following URL:
http://www.cisco.com/tac/caseopen
If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC
Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority
level 2; these classifications are assigned when severe network degradation significantly impacts
business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC
engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following
URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
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Obtaining Technical Assistance
Before calling, please check with your network operations center to determine the level of Cisco support
services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network
Supported Accounts (NSA). In addition, please have available your service agreement number and your
product serial number.
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C H A P T E R
1
Cisco uBR7200 Series Overview
This chapter describes the Cisco uBR7200 series universal broadband routers and contains the following
sections:
•
Cisco uBR7200 Series Chassis, page 1-1
•
Cisco uBR7200 Series Network Interface Overview, page 1-7
•
Supported System Configurations Overview, page 1-10
•
Hardware Component Descriptions, page 1-14
Cisco uBR7200 Series Chassis
The Cisco uBR7200 series universal broadband routers comprise the Cisco Cable Modem Termination
System (CMTS) solution. Three different chassis are available: the Cisco uBR7223, the Cisco uBR7246,
and the Cisco uBR7246VXR. The routers allow high-speed data services to be packaged similar to basic
cable television service or video fare.
The routers are based on Data-over-Cable Service Interface Specifications (DOCSIS) and support data
and packetized voice connectivity over a bidirectional cable television and IP backbone network. The
Cisco uBR7200 series routers typically concentrate traffic from DOCSIS- or EuroDOCSIS-based cable
interfaces and cable modems (or set-top boxes with integrated DOCSIS or EuroDOCSIS cable modems)
on the cable television network and present that traffic to local and remote IP hosts. For cable plants not
fully upgraded to support two-way cable transmission, the routers work in conjunction with dialup
access products to support upstream traffic from DOCSIS-based cable interfaces connected to the Public
Switched Telephone Network (PSTN). The routers support both 6-MHz North American channel plans
using ITU-T J.83 Annex B operation and 8-MHz Phase Alternate Line (PAL) and SEquential Coulour
Avec Memoire (SECAM) channel plans using ITU-T J.83 Annex A operation.
Cisco uBR7200 series universal broadband routers contain:
•
Cable interface cards that interface to the cable television network. The Cisco uBR7200 series
card set includes varying upstream-to-downstream interface ratios with differing bandwidth and
modulation schemes supported, as well as the capability to dynamically perform complex spectrum
management and operate in a 6-MHz or 8-MHz channel width environment.
See the “Cisco Cable Interface Cards” section on page 1-18.
•
Port adapters that connect to the IP backbone and external networks.
See the “Cisco Port Adapters” section on page 1-19.
•
A Cisco cable clock card that allows you to lock onto and propagate a T1 clock signal throughout
the router midplane. The cable clock card is used only in the Cisco uBR7246VXR.
See the “Cisco Cable Clock Card” section on page 1-19.
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Cisco uBR7200 Series Chassis
•
One network processing engine (NPE) that performs system management functions for the chassis.
See the “Network Processing Engine” section on page 1-15. Table 1-1 on page 1-15 shows the NPEs
supported in each universal broadband router chassis.
•
An I/O controller that shares the system memory functions and the environmental monitoring
functions with the network processing engine. See the “Input/Output Controller” section on
page 1-17.
•
Power supplies–the Cisco uBR7223 supports a single power supply, the Cisco uBR7246 and
Cisco uBR7246VXR support an optional redundant power supply. See the “Power Supplies” section
on page 1-23.
•
A midplane that serves as the interconnect between the cable interface cards and the other
components of the system. See the “Subchassis and Midplane” section on page 1-28.
•
A fan tray, enclosing internal fans that draw cooling air into the chassis to maintain an acceptable
operating temperature. See the “Fan Trays” section on page 1-25.
The cable interface cards, port adapters, clock card, NPE, I/O controller, and power supplies slide into
their respective chassis slots and connect directly to the router’s midplane. There are no internal cables
to connect. The midplane distributes power from the power supplies to the I/O controller, cable interface
cards, port adapters, clock card, fan tray, and NPE.
Cisco uBR7200 series universal broadband routers may be installed on a tabletop or rack mounted. A
rack-mount kit ships from the Cisco factory with each router. The rack-mount kit includes the hardware
needed to mount the router in a standard 19-inch equipment rack or telco-type rack.
The Cisco uBR7200 series universal broadband routers support:
•
Environmental monitoring and reporting functions to resolve adverse environmental conditions
before loss of operation.
•
Online insertion and removal (OIR), allowing key system components to be added or removed
without powering off the chassis.
Caution
You can remove and replace a cable interface card or port adapter with the same type of component
without interrupting the rest of the system or having to reconfigure the system. However, to replace
a cable interface card or port adapter with a different type of card or port adapter, (example: hot
swapping from a Cisco MC16B to a Cisco MC16C or replacing a high-speed serial interface (HSSI)
adapter with an ATM adapter), you must copy your startup configuration to your running
configuration on the Cisco uBR7200 series to enable the interfaces on the new cable modem card or
port adapter.
Caution
The I/O controller, NPE, and clock card components do not support OIR. You must power down the
chassis before removing the I/O controller, the NPE, or the clock card.
Note
For specific instructions to install, remove, or replace system components, refer to the configuration
notes that ship with the field-replaceable units or see the documentation at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm.
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Cisco uBR7200 Series Chassis
Cisco uBR7223 Chassis
The Cisco uBR7223 chassis contains:
•
Two slots for cable interface cards
•
One slot for a single-width port adapter
•
One slot for an I/O controller
•
One slot for a network processing engine
The front of the chassis provides access to the I/O controller, the single-width port adapter, and two
cable interface cards, if fully equipped. (See Figure 1-1.) The Cisco uBR7223 chassis supports only one
AC-input or DC-input power supply.
Figure 1-1
Cisco uBR7223 Universal Broadband Router—Front View
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
Auxiliary port
Console port
PCMCIA slots
I/O
controller
Internal
fans
Port adapter
5
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Fan tray
Cable F connectors
The rear of the Cisco uBR7223 provides access to the network processing engine and the power supply.
(See Figure 1-2.)
Figure 1-2
Cisco uBR7223 Universal Broadband Router—Rear View
Network processing engine
15746
AC-input
power supply
AC-input receptacle
Power switch
Handle
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Cisco uBR7200 Series Chassis
A fully configured Cisco uBR7223, with an installed power supply and all slots filled, weighs
approximately 75 pounds (34.0 kg). For clearance requirements and rack-mount installation
considerations, refer to the “Site Environment” section on page 2-6.
Cisco uBR7246 Chassis
The Cisco uBR7246 contains:
•
Four slots for cable interface cards
•
Two slots for port adapters (one slot for a dual-width port adapter)
•
One slot for an I/O controller
•
One slot for a network processing engine
The front of the chassis provides access to the I/O controller, two port adapters, and four cable interface
cards, if fully equipped. (See Figure 1-3.)
Cisco uBR7246 Universal Broadband Router—Front View
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
Auxiliary port
Console port
PCMCIA slots
Internal
fans
I/O
controller
Port
adapters
5
uBR - MCI6
5
uBR - MCI6
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uBR - MCI6
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uBR - MCI6
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Figure 1-3
Cable F connectors
The rear of the Cisco uBR7246 provides access to the network processing engine and up to two power
supplies. (See Figure 1-4.)
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Cisco uBR7200 Series Chassis
Figure 1-4
Cisco uBR7246 Universal Broadband Router—Rear View
Network
processing
engine
H10094
AC-input
power supply
AC-input receptacle
Power switch
Handle
A fully configured Cisco uBR7246 can operate with only one installed power supply. A second power
supply may be installed in the chassis to provide load-sharing, redundant power, and hot-swappable
capabilities. In a chassis using two power supplies, if one power supply fails or is removed, the other
power supply immediately takes over the router’s power requirements and maintains normal operation
without interruption.
Caution
If you are using two power supplies, ensure that each power supply is plugged into a separate branch
circuit.
Note
The Cisco uBR7246 does not support a mix of AC-input and DC-input power supplies in the same
chassis. If an AC-input power supply is installed and you want to add a second, redundant power
supply, you must add another AC-input power supply. If you want a redundant DC-input power
supply configuration, you must remove any installed AC-input power supplies and replace them with
two DC-input power supplies.
A fully configured Cisco uBR7246, with two installed power supplies and all chassis slots filled, weighs
approximately 100 pounds (45.4 kg). For clearance requirements and rack-mount installation
considerations, refer to the “Site Environment” section on page 2-6.
Cisco uBR7246VXR Chassis
The Cisco uBR7246VXR contains:
•
Four slots for cable interface cards
•
Two slots for port adapters (one slot for a dual-width port adapter)
•
One slot for an I/O controller
•
One slot for a network processing engine
•
One slot for the cable clock card
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Chapter 1
Cisco uBR7200 Series Overview
Cisco uBR7200 Series Chassis
The front of the chassis provides access to the I/O controller, two port adapters, four cable interface
cards, and the clock card, if fully equipped. See Figure 1-5.
Figure 1-5
Cisco uBR7246VXR Universal Broadband Router—Front View
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
Auxiliary port
Console port
PCMCIA slots
Internal
fans
I/O
controller
Clock card
uBR - CLK-T1
SEC
Port
adapters
LOS
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Cable F connectors
The rear of the Cisco uBR7246VXR provides access to the network processing engine and up to two
power supplies. See Figure 1-6.
Figure 1-6
Cisco uBR7246VXR Universal Broadband Router—Rear View
Network
processing
engine
H10094
AC-input
power supply
AC-input receptacle
Power switch
Handle
A fully configured Cisco uBR7246VXR can operate with only one installed power supply. A second
power supply may be installed in the chassis to provide load-sharing, redundant power, and
hot-swappable capabilities. In a chassis using two power supplies, if one power supply fails or is
removed, the redundant power supply immediately takes over the router’s power requirements and
maintains normal operation without interruption.
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Cisco uBR7200 Series Overview
Cisco uBR7200 Series Network Interface Overview
Caution
If you are using two power supplies, ensure that each power supply is plugged into a separate branch
circuit.
Note
The Cisco uBR7246VXR does not support a mix of AC-input and DC-input power supplies in the
same chassis. If an AC-input power supply is installed and you want to add a second, redundant
power supply, you must add another AC-input power supply. If you want a redundant DC-input power
supply configuration, you must remove any installed AC-input power supplies and replace them with
two DC-input power supplies.
A fully configured Cisco uBR7246VXR, with two installed power supplies and all chassis slots filled,
weighs approximately 100 pounds (45.4 kg). For clearance requirements and rack-mount installation
considerations, refer to the “Site Environment” section on page 2-6.
Cisco uBR7200 Series Network Interface Overview
This section provides a functional overview of the network interfaces available on the Cisco uBR7200
series universal broadband router. Port adapter and cable interface card slot and logical interface
numbering, as well as the MAC address assignments for port adapter and cable interface card interfaces.
Card Slot and Logical Interface Numbering
In all of the Cisco uBR7200 series universal broadband routers, the slot number is the chassis slot in
which a port adapter or a cable interface card is installed, and the logical interface number is the physical
location of the interface port on a port adapter.
Port adapter and cable interface card slots maintain the same slot number regardless of whether other
port adapters or cable interface cards are installed or removed. However, when you move a port adapter
or cable interface card to a different slot, the logical interface number changes to reflect the new slot
number.
The MAC-layer or hardware address is a standardized data-link layer address that is required for certain
network interface types. These addresses are specific and unique to each port. The Cisco uBR7200 series
uses a specific method to assign and control the MAC-layer addresses of its port adapters. For a
description of the MAC-layer address, refer to the “MAC-Layer Address” section on page 1-9.
Cisco uBR7223
The single port adapter and the two cable interface cards in the Cisco uBR7223 chassis provide the
connection between the router’s three protocol control information (PCI) buses (mb0, mb1, and mb2)
and external networks. Bus mb0 is for the optional Fast Ethernet port on the I/O controller; Bus mb1 is
for slot 1 and slot 2. Bus mb2 is for slot 3.
The Fast Ethernet port on the I/O controller is port adapter slot 0; the port adapter uses slot 1;the cable
interface cards use slot 2 and slot 3 (see Figure 1-7 on page 1-8). The number of logical interfaces
depends on the type of port adapter or cable interface card.
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Cisco uBR7200 Series Network Interface Overview
Figure 1-7
Cisco uBR7223 Port Adapter and Cable Interface Card Slot Numbering
Port adapter slot 0
(I/O controller)
2
uBR - MCI6
5
uBR - MCI6
Cable interface card slot 2
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Cisco uBR7246
The two port adapters (slot 1 and slot 2) and the four cable interface cards ( slot 3 through slot 6) in the
Cisco uBR7246 provide the connection between the router’s three PCI buses (mb0, mb1, and mb2) and
external networks. Bus mb0 is for the optional Fast Ethernet port on the I/O controller (slot 0); bus mb1
is for port adapter slot 1, and cable interface card slot 3 and slot 5; and bus mb2 is for port adapter slot 2
and cable interface card slot 4 and slot 6.
See Figure 1-8 for slot locations and slot numbers.) The number of logical interfaces depends on the type
of port adapter or cable interface card.
Cisco uBR7246 Port Adapter and Cable Interface Card Slot Numbering
4
5
uBR - MCI6
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uBR - MCI6
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Figure 1-8
Cable interface card slot 3
Cable interface card slot 4
Cable interface card slot 5
Cable interface card slot 6
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Cisco uBR7200 Series Network Interface Overview
Cisco uBR7246VXR
The two port adapters and the four cable interface cards in the Cisco uBR7246VXR provide the
connection between the router’s three PCI buses (mb0, mb1, and mb2) and external networks. Bus mb0
is for the optional Fast Ethernet port on the I/O controller, bus mb1 is for port adapter slot 1, and
cable interface card slot 3 and slot 5; and bus mb2 is for port adapter slot 2 and cable interface card slot 4
and slot 6.
The Cisco uBR7246VXR, port adapter slots are numbered 1 and 2; port adapter slot 0 is the Fast Ethernet
port on the I/O controller. Cable interface card slots are numbered from 3 to 6. See Figure 1-9 for a
description of the port adapter and cable interface card slots. The number of logical interfaces depends
on the type of port adapter or cable interface card.
Figure 1-9
Cisco uBR7246VXR Chassis Port and Cable Interface Card Locations
Port adapter slot 0
(I/O controller)
Port adapter slot 1
(blank)
Clock card
Port adapter slot 2
uBR - CLK-T1
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FREERUN
ER
Some port adapters available for the Cisco uBR7246VXR only work if a minimum hardware revision
requirement has been satisfied. For specific information, refer to the Cisco uBR7200 Software
Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
MAC-Layer Address
All LAN interfaces (ports) require unique MAC-layer addresses, also known as hardware addresses.
Typically, the MAC address of an interface is stored on a memory component that resides directly on the
interface circuitry; however, the OIR feature requires a different method. For a description of OIR, refer
to Chapter 6, “Online Insertion and Removal.”
The OIR feature allows you to remove a port adapter or cable interface card and replace it with another
identically configured one. If the new port adapter or cable interface card matches the port adapter or
cable interface card you removed, the system immediately brings it online. In order to allow OIR, an
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address allocator with a unique MAC address is stored in an EPROM on the universal broadband router
midplane. Each address is reserved for a specific port and slot in the router regardless of whether a port
adapter or a cable interface card resides in that slot.
The MAC addresses are assigned to the slots in sequence. The first addresses are assigned to port adapter
slot 0 and slot 1, and the next addresses are assigned to port adapter slot 2 through cable interface card
slot 6. This address scheme allows you to remove port adapters or cable interface cards and insert them
into other universal broadband routers without causing the MAC addresses to move around the network
or be assigned to multiple devices.
Note
Storing the MAC addresses for every slot in one central location means that the addresses stay with
the memory device on which they are stored.
For information on the commands used to configure your Cisco uBR7200 series, refer to Cisco IOS
Configuration Fundamentals Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/index.htm
Also refer to the Cisco IOS Configuration Fundamentals Command Reference at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_r/index.htm.
Supported System Configurations Overview
Cisco uBR7200 series universal broadband routers are installed at a cable television headend or a
distribution hub. Related networking and RF equipment, servers, and other host computers are installed,
along with the Cisco uBR7200 series routers, to support digital data transmission.
To deliver data and VoIP services over the cable television system, TV channels are allocated to carry
digital data. Data is modulated downstream on:
•
6-MHz channels in the 88-860 MHz range, using North American channel plans via cable interface
cards installed in the chassis. For bidirectional cable plants, a portion of the 5 to 42 MHz range is
used for upstream data transmission. For one-way cable plants or cable segments yet to be upgraded,
DOCSIS-based cable interfaces configured for telco return are also supported.
•
8-MHz channels in the 108 to 862 MHz range using PAL/SECAM channel plans through
Cisco MC16E cable interface cards installed in the chassis. For bidirectional cable plants, a portion
of the spectrum in the 5 to 65 MHz range is used for upstream data transmission.
The following sections illustrate the supported configurations including:
•
Basic Internet access services
•
Virtual private network (VPN) services
•
IP telephony services
•
Telco return
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Basic Internet Access Services
A Cisco uBR7200 series universal broadband router and an external IF-to-RF upconverter are installed
at the headend or distribution hub. The Cisco uBR7200 series downstream ports transmit IF signals to
the upconverter, which translates the downstream signals to RF for broadcast. The Cisco uBR7200 series
enables you to transmit downstream data in both the 6-MHz North American and the 8-MHz European
channel environments using the appropriate model of the cable interface card.
Receivers, scramblers, and descramblers process the television signals to encode or decode signals as
needed for broadcast. Modulators format the analog television and digital signals while upconverters
change the carrier frequency of a modulated signal to a specified frequency. The analog TV channels and
digitally modulated carriers then pass through the RF combiner.
The signals are broadcast from the headend through optical transmitters typically to fiber nodes in the
network. Amplifiers, coaxial cable, and taps carry the signals to the subscriber premises. Signals are
processed as follows:
•
Set-top boxes (STBs), televisions, or VCRs receive analog and digital data signals.
•
DOCSIS-based cable interfaces and STBs connected to customer premises equipment (CPE) receive
digital data signals:
– Two-way cable interfaces transmit RF signals back through amplifiers to optical fiber receivers
at the headend. These receivers pass the upstream signal to the upstream ports on the
Cisco uBR7200 series for processing.
– Telco return cable interfaces transmit over the PSTN. Dial-up servers and other equipment
handle the upstream traffic and pass appropriate data to the Cisco uBR7200 series routers. For
telco return specifics, refer to the “Telco Return” section on page 1-13.
Figure 1-10 shows the architecture of a typical two-way hybrid fiber-coaxial (HFC) network, equipped
to support two-way data communication.
Figure 1-10 Two-Way HFC Cable Network Example
Subscriber
cable modem
Headend / Hub
10BASE-T
Over the air
channels
AM & digital
modulators
RF
Optical node
RF amplifiers
Optical transmitter
Satellite
channels
Receivers
Descramblers
Scramblers
Tap
Optical transmitter
Optical node
RF
RF
RF
Optical transmitter
Downstream
Upconverter RF
Optical node
RF
RF combiner
RF
IF
Upstream
Optical receiver
62680
Internet
Cisco uBR7200
series
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Cisco Systems provides a configuration tool—Cisco Network Registrar (CNR)—which is optimized for
high performance automatic dynamic IP address allocation to cable interfaces, PCs, and other devices
on the broadband network. Cisco Systems also provides an integrated suite of configuration tools,
including CNR, for relatively large cable networks called Cisco Subscriber Registration Center (CSRC).
CSRC allows large-scale configuration and management of broadband modems. Leveraging the
extensibility of CNR, CSRC enables and administers subscriber self-registration. The directory-enabled
architecture of CSRC allows it to integrate with lightweight directory access protocol (LDAP) version 3
directory servers.
For more information on CSRC and CNR involvement in the cable network, refer to the CSRC and CNR
documentation at the following URL:
http://www.cisco.com/warp/public/cc/pd/nemnsw/nerr/index.shtml
Also refer to Cisco uBR7200 Series Software Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
VPN Services
The Cisco uBR7200 series supports VPN services. Figure 1-11 shows a typical VPN architecture. VPNs
can be initiated at a cable modem residing at a subscriber site or can be initiated by the CMTS at the
headend or distribution hub depending upon your particular Cisco IOS software image.
Figure 1-11 Two-Way VPN Network Example
Corporate
Secure
VPN
tunnel
Cisco
uBR7200
series
Branch
office
Secure
VPN
tunnels
Internet
Telecommuter
Note
62681
PSTN
Many VPN architectures involve the use of encryption and decryption. Encryption and decryption
are subject to export licensing controls. For more information, refer to Appendix G, “Compliance
with U.S. Export Laws and Regulations Regarding Encryption.”
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IP Telephony Services
The Cisco uBR7200 series supports the transmission of packetized voice and facsimile traffic over the
cable and IP backbone network. Figure 1-12 shows a typical two-way configuration involving
Voice-over-IP (VoIP) telephony services.
Figure 1-12 Two-Way IP Telephony Network Example
Gateway/PSTN
Service
provider
backbone
Cisco uBR7200
series
Gatekeeper or
calling agents
Remote
cable modem
Calling party
Residence or SOHO*
subscriber site 1
Policy
server
HFC
cable plant
Remote
cable modem
Called party
Residence or SOHO*
subscriber site 2
25659
HFC
cable plant
Cisco uBR7200
series
*Small Office Home Office
Telco Return
In telco return configurations, the Cisco uBR7200 series universal broadband router provides
downstream data flow from cable interface cards connected to the cable system and accepts upstream
traffic via a combination of the local PSTN and IP network path that terminates at the Cisco uBR7200
series router. Upstream data transmission takes place over a telephone modem (external or internal to a
cable interface, as well as a cable interface card in a PC, based on the third-party cable interface vendor)
connected to an analog telephone line. Figure 1-13 illustrates a telco return configuration.
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Figure 1-13 Telco Return Network Example
IP network access
RADIUS dial
security server
Cisco network
access server
PPP connection between
remote cable modem
and network access server
established following
authentication
PSTN
Upstream
IP network
DHCP
TFTP
TOD
servers
Cisco uBR7200
series
HFC downstream
including TCD messages
Subscriber
cable modem
25926
Headend or hub
Hardware Component Descriptions
Most Cisco uBR7200 series universal broadband router components are field replaceable units. These
units, unless otherwise noted, are OIR compatible. See Chapter 6, “Online Insertion and Removal.”
FRU documentation (instructions on installing, removing, and replacing) is located at the following
URL: http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
The units are:
•
Network Processing Engine, page 1-15
•
Input/Output Controller, page 1-17
•
Cisco Cable Interface Cards, page 1-18
•
Cisco Cable Clock Card, page 1-19 (Cisco uBR7246VXR only)
•
Cisco Port Adapters, page 1-19
•
Power Supplies, page 1-23
•
Fan Trays, page 1-25
•
Cisco uBR7223 Chassis, page 1-27
•
Subchassis and Midplane, page 1-28
•
Flash Memory Cards, page 1-32
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Network Processing Engine
The Network Processing Engine (NPE) maintains and executes the system management functions for the
Cisco uBR7200 series routers. The NPE also shares the system memory and environmental monitoring
functions with the I/O controller. The network processing engine performs the following system
management functions:
•
Sending and receiving routing protocol updates
•
Managing tables, caches, and buffers
•
Monitoring interface and environmental status
•
Providing Simple Network Management Protocol (SNMP) management and console/Telnet
interface
•
Accounting and switching of data traffic
•
Booting and reloading images
•
Managing port adapters (recognition and initialization during OIR)
Refer to the Network Processing Engine and Network Services Engine Installation and Configuration,
for specifications, and removal and replacement instructions for these components. View the document
online at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/npense/index.htm
The document is also available on the Documentation CD-ROM.
NPE Comparisons
The network processing engines used in the routers include the NPE-150, NPE-200, NPE-225, NPE-300,
and NPE-400.
Note
The NPE-150, NPE-200, and NPE-300 are end of life products.
Table 1-1
NPEs Supported in Universal Broadband Router Chassis
Chassis
Supported NPEs
Cisco uBR7223 and Cisco uBR7246
NPE-150, NPE-200, NPE-225
Cisco uBR7246VXR
NPE-225, NPE-300, NPE-400
NPE components:
•
Reduced instruction set computing (RISC) microprocessor:
– NPE-150 with an R4700 microprocessor that operates at an internal clock speed of 150 MHz.
– NPE-200 with an RM5270 microprocessor that operates at an internal clock speed of 200 MHz.
– NPE-225 with an RM5271 microprocessor that operates at an internal clock speed of 262 MHz.
– NPE-300 with an RM7000 microprocessor that operates at an internal clock speed of 262 MHz.
– NPE-400 with an RM7000 microprocessor that operates at an internal clock speed of 350 MHz.
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•
System controller:
– NPE-150, NPE-200, and NPE-225 have a system controller that uses direct memory access
(DMA) to transfer data between DRAM and packet static random access memory (SRAM) on
the network processing engine.
– NPE-300 has two system controllers that provide processor access to the two midplane and
single I/O controller PCI buses. The system controllers also allow port adapters on either of the
two midplane PCI buses access to SDRAM.
– The NPE-400 has a single system controller
•
Upgradable memory modules:
– NPE-150 and NPE-200 use DRAM for storing routing tables, network accounting applications,
packets of information in preparation for process switching, and packet buffering for SRAM
overflow. The standard configuration is 32 MB, with up to 128 MB available through single
in-line memory module (SIMM) upgrades.
– NPE-225, uses SDRAM for providing code, data, and packet storage.
– NPE-300 and NPE-400 use SDRAM for storing all packets received or sent from network
interfaces. The SDRAM also stores routing tables and network accounting applications. Two
independent SDRAM memory arrays in the system allow concurrent access by port adapters
and the processor.
•
Packet SRAM for storing packets of information in preparation for fast switching:
– NPE-150 has 1 MB of SRAM.
– NPE-200 has 4 MB of SRAM.
– NPE-225, NPE-300, and NPE-400 do not have packet SRAM.
•
Cache memory:
– NPE-150 and NPE-200 have unified cache SRAM that functions as the secondary cache for the
microprocessor. (The primary cache is within the microprocessor.)
– NPE-225, NPE-300, and NPE-400 have three levels of cache: a primary and a secondary cache
that are internal to the microprocessor, and a tertiary, 2-MB external cache that provides
additional high-speed storage for data and instructions.
•
Two environmental sensors for monitoring the cooling air as it leaves the chassis
•
Boot ROM for storing sufficient code for booting the Cisco IOS software; NPE-200, NPE-225,
NPE-300, and NPE-400 have boot ROM
Note
To prevent DRAM errors in the NPE-150 or NPE-200, and to ensure that your system initializes
correctly at startup, DRAM bank 0 (socket U18 and U25, or U11 and U25) must contain no fewer
than two SIMMs of the same type. You may also install two SIMMs of the same type in bank 1
(socket U4 and U12, or U42 and U52); however, bank 0 must always contain the two largest SIMMs.
Note
The NPE-225 does not have packet SRAM.
Note
Both the NPE-300 and the NPE-400 are keyed to prevent insertion into the Cisco uBR7223 and the
Cisco uBR7246.
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Input/Output Controller
The I/O controller shares the memory functions and the environmental monitoring functions with the
NPE or the Network Services Engine (NSE). The I/O controller contains the following components:
•
Dual EIA/TIA-232 channels for local and auxiliary console ports. The console port has full data
communication equipment (DCE) functionality and a DB-25 receptacle. The auxiliary port has full
data terminal equipment (DTE) functionality and a DB-25 plug.
•
Optional Fast Ethernet port that is configurable for use at 100-Mbps full-duplex or half-duplex
(half-duplex is the default). The Fast Ethernet port is equipped with an MII receptacle and an RJ-45
receptacle. There is no functional difference between the I/O controllers with the Fast Ethernet port
and the I/O controllers without the Fast Ethernet port.
Note
When using the I/O controller that is equipped with an MII receptacle and an RJ-45 receptacle, only
one receptacle can be configured for use at a time.
Note
Many of the initial shipments of Cisco uBR7246 chassis that were equipped with a Fast Ethernet I/O
controller have an I/O controller with a single MII receptacle installed. These I/O controllers are fully
compatible with the router, and they are still supported; however, they are no longer available as
spares.
•
Nonvolatile random-access memory (NVRAM) for storing the system configuration and
environmental monitoring logs. NVRAM uses lithium batteries to maintain its contents when
disconnected from power.
•
Two PCMCIA slots for Type II flash memory cards.
•
Flash memory SIMM and flash memory cards for storing the boot helper image and the default
Cisco IOS software image.
•
Erasable programmable read-only memory (EPROM) for storing sufficient code for booting the
Cisco IOS software.
•
Two environmental sensors for monitoring the cooling air as it enters and leaves the Cisco uBR7200
series chassis.
Table 1-2 lists the I/O controller memory components.
Table 1-2
I/O Controller Memory Components
Memory Type
Size
Quantity
Description
Location
Boot ROM
256 KB
1
EPROM for the ROM
monitor program
Socket U20
Flash SIMM
4 MB or
8 MB
1
Contains the default boot
helper image
Socket U99 or U10, U11,
U12, and U13 or U13 and
U25 (soldered)
Flash memory
card
20 MB
Up to 2
Contains the default Cisco
IOS image
PCMCIA
slot 0 and slot 1
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Table 1-2
I/O Controller Memory Components (continued)
Memory Type
Size
Quantity
Description
Location
Flash Card
48 MB or
128 MB
Up to 2
Contains the default Cisco
IOS image
PC card slot 0 and slot 1
NVRAM
128 KB
1
Nonvolatile EPROM for the Socket U41 or U14
system configuration file
(soldered)
For memory replacement instructions refer to Memory Replacement Instructions for the Network
Processing Engine or Network Services Engine and Input/Output Controller. To view the document
online, go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/memory/index.htm
For I/O Controller card replacement instructions, refer to Input/Output Controller Replacement
Instructions. To view the document online. go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/3224iofe.htm
Depending on whether the Fast Ethernet port is present, either two or four LEDs on the I/O controller
faceplate indicate system status; two additional LEDs indicate the status of the flash memory cards
installed in either PCMCIA slot.
A CPU reset button is located next to the IO PWR OK LED on the I/O controller faceplate. The CPU
reset button resets the entire system.
Caution
Tip
To prevent system errors and problems, use the CPU reset button only at the direction of your service
representative.
If you order an I/O controller as a spare for a Cisco uBR7200 series, use the product numbers
UBR7200-I/O= (without a Fast Ethernet port) or UBR7200-I/O-FE= (with a Fast Ethernet port).
These I/O controllers have the Cisco IOS software images used by the Cisco uBR7200 series loaded
on the flash memory SIMMs.
Cisco Cable Interface Cards
Cisco cable interface cards (also known as line cards), together with external IF-to-RF upconverters,
serve as the RF interface between the cable headend and both DOCSIS-based cable modems and
EuroDOCSIS-based cable modems and set-top boxes (STBs). Cisco cable interface cards separate
downstream output and upstream input cable interfaces on the Cisco uBR7200 series universal
broadband router to enable downstream and upstream signal combining and splitting arrangements.
Cisco cable interface cards can be used in both 6-MHz NTSC standard and 8-MHz PAL/SECAM channel
environments.
The cable interface cards connect directly to the universal broadband router’s midplane. Cable interface
cards installed in the Cisco uBR7200 series router support OIR. The downstream ports must be
connected to external IF-to-RF upconverter hardware.
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Caution
To ensure the proper flow of cooling air across internal components, make sure that blank cable
interface cards, blank port adapters, and blank clock cards are installed in unoccupied chassis slots.
Also make sure that power supply filler plates (with their attached air dams) are installed in
unoccupied power supply bays.
For more information regarding specific cable interface cards, refer to the Cable Interface Line Card
Hardware Installation. To view the document online, go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/10494hmc.htm
Cisco Cable Clock Card
The clock card works only with the Cisco MC16S or Cisco MC16E cable interface cards and the
Cisco uBR7246VXR. The cable modem. The cable modem must also support the clocking mode.
The Cisco cable clock card is a dual-port field-replaceable component that is designed to provide a
reliable national clock signal to the Cisco uBR7246VXR. The primary and secondary DB-15 interfaces
on the front of the clock card connect to external T1 clock signal sources.
When installed in the Cisco uBR7246VXR chassis, the clock card can propagate a national clock signal
throughout the router’s midplane by locking onto an external T1 signal originating over the PSTN, by
locking onto a T1 clock signal originating from a port adapter installed in the same chassis, or by
connecting to a Global Positioning System (GPS) receiver generating a T1 clock signal. The clock card
does not support OIR.
Caution
To ensure adequate airflow across the router’s components, a clock card or a blank clock card cover
plate must be installed in the clock card slot on the Cisco uBR7246VXR.
For detailed information on the clock card refer to Cisco Cable Clock Card for the Cisco uBR7246VXR
Universal Broadband Router at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_r_sw/natlclck.htm
Note
Refer to Appendix F, “Manufacturers for Headend Provisioning Requirements” for a list of external
T1 component suppliers that Cisco recommends.
Cisco Port Adapters
The port adapters serve as a WAN interface and connect directly to the Cisco uBR7200 series universal
broadband router’s midplane. Port adapters installed in the Cisco uBR7200 series support OIR. For a
complete list of port adapters supported in the various Cisco uBR7200 series routers, see Table 1-3, refer
to the Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide, or the latest
IOS Release Note.
For the Cisco uBR7200 Series Software Configuration Guide, go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
For Cisco IOS Release Notes, go to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_r_sw/index.htm
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For port adapter and HSSI installation information, see the port adapter configuration notes at the
following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
See Appendix G, “Regulatory Compliance and Safety Information,” for regulatory and international
agency compliance, safety, and statutory information for WAN interfaces.
Caution
To ensure adequate airflow across the router’s port adapters, a port adapter or a blank port adapter
must be installed in each port adapter slot.
Cisco Port Adapter-Chassis-Release Matrix
Table 1-3 lists current Cisco uBR7200 series port adapters and identifies the chassis and release trains
on which the port adapter is supported.
Table 1-3
Cisco uBR7200 Series Port Adapter, Chassis, and IOS Release Compatibility
Product Number
Cisco uBR7223
Cisco uBR7246
Cisco uBR7246VXR
Ethernet
PA-4E—4-port Ethernet 10BASE-T port adapter
11.3(8)NA12.0(6)SC, 11.3(8)NA, 12.0(1)T,
12.0(7)SC, 12.0(7)T,
12.1(1a)T1, 12.0(5)T1, 12.0(6)SC, 12.1(1a)T1, 12.1(1a)T1 1, 12.1 EC
12.1 EC
12.1 EC,
PA-8E—8-port Ethernet 10BASE-T port adapter
11.3(8)NA, 12.0(5)T1, 11.3(8)NA, 12.0(1)T,
12.0(7)SC, 12.0(7)T,
12.0(6)SC, 12.1(1a)T1, 12.0(6)SC, 12.1(1a)T1, 12.1(1a)T1 2, 12.1 EC
12.1 EC
12.1 EC
PA-FE-FX—1-port 100BASE-FX Fast Ethernet
port adapter
11.3(8)NA, 12.0(5)T1, 11.3(8)NA, 12.0(1)T,
12.0(7)SC,
12.0(6)SC, 12.1(1a)T1, 12.0(6)SC, 12.1(1a)T1, 12.0(7)T,12.1(1a)T1,
12.1 EC
12.1 EC
12.1 EC
PA-FE-TX—1-port 100BASE-TX Fast Ethernet
port adapter
11.3(8)NA, 12.0(5)T1, 11.3(8)NA, 12.0(1)T, 12.0(7)S12.1(1a)T1C,
12.0(6)SC, 12.1(1a)T1, 12.0(6)SC, 12.1(1a)T1, 12.0(7)T, 12.1 EC
12.1 EC
12.1 EC
PA-2FEISL-FX—2-port 100BASE-FX Fast
12.0(5)T1,12.0(6)SC,
Ethernet port adapter with Inter-Switch Link (ISL) 12.1(1a)T1, 12.1 EC
support
12.0(5)T1,12.0(6)SC,
12.1(1a)T1, 12.1 EC
12.0(7)SC, 12.0(7)T,
12.1(1a)T1, 12.1 EC
PA-2FEISL-TX—2-port 100BASE-TX Fast
12.0(5)T1,12.0(6)SC,
Ethernet port adapter with Inter-Switch Link (ISL) 12.1(1a)T1, 12.1 EC
support
12.0(5)T1,12.0(6)SC,
12.1(1a)T1, 12.1 EC
12.0(7)SC, 12.0(7)T,
12.1(1a)T1, 12.1 EC
PA-12E/2FE—12-port 10BASE-T and 2-port
10/100BASE-TX port adapter
Not applicable
12.0(5)T1,12.0(6)SC,
12.1(1a)T1, 12.1 EC
Not applicable
Not applicable
Not applicable
12.0(7)T, 12.1(1a)T1,
12.1 EC
Gigabit Ethernet
PA-GE—1-port, full-duplex, IEEE 802.3
z-compliant Gigabit Ethernet (GE) port adapter3
Serial
PA-4T+—4-port synchronous serial port adapter
12.0(5)T1, 12.1(1a)T1, 12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1 EC
12.1(1a)T1, 12.1 EC
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Table 1-3
Cisco uBR7200 Series Port Adapter, Chassis, and IOS Release Compatibility (continued)
Product Number
Cisco uBR7223
Cisco uBR7246
Cisco uBR7246VXR
PA-8T-232—8-port EIA/TIA-232 synchronous
serial port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not applicable
PA-8T-V35—8-port V.35 synchronous serial port
adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not applicable
PA-8T-X21—8-port X.21 synchronous serial port
adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-4E1G-75—4-port unbalanced (75-ohm)
E1-G.703/G.704 synchronous serial port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-4E1G-120—4-port balanced (120-ohm)
E1-G.703/G.704 synchronous serial port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-E3—1-port high-speed serial E3 interface port
adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-T3—1-port T3 serial interface port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-2E3—2-port high-speed serial E3 interface port
adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-2T3—2-port T3 serial interface port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.1(3)T, 12.1 EC
PA-MC-E3—1-port multichannel E3,
medium-speed serial interface port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T,
12.1 EC
Not Applicable
PA-MC-T3—1-port T3 (channelized into 28
independent T1 data lines) port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-MC-4T1—4-port multichannel DS1 ISDN PRI
single-wide port adapter
12.0(5)T1, 12.1(1a)T,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-MC-8E1/120—8-port multichannel E1 ISDN
PRI single-wide port adapter
PA-MC-8T1—8-port multichannel DS1 ISDN PRI
single-wide port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-H—1-port HSSI port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T14,
12.1 EC
PA-2H—2-port HSSI port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T15,
12.1 EC
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-A1-OC3MM—1-port ATM OC-3c/STM-1 multi 12.0(5)T1, 12.1(1a)T,
mode port adapter
12.1 EC1
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-A2-4E1XC-OC3SM—5-port ATM CES 6 (4 E1 Not Applicable
120-ohm CBR 7 ports and 1 OC-3 ATM single-mode
port) port adapter
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
HSSI
ATM
PA-A1-OC3SMI—1-port ATM OC-3c/STM-1
single-mode intermediate reach port adapter
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Table 1-3
Cisco uBR7200 Series Port Adapter, Chassis, and IOS Release Compatibility (continued)
Product Number
Cisco uBR7223
Cisco uBR7246
Cisco uBR7246VXR
PA-A2-4E1XC-E3ATM—5-port ATM CES
(4 E 120-ohm CBR ports and 1 E3 ATM port) port
adapter
Not Applicable
12.0(1)T, 12.1(1a)T,
12.1 EC
Not Applicable
PA-A2-4T1C-OC3SM—5-port ATM CES6 (4 T1
Not Applicable
CBR7 ports and 1 OC-3 ATM single-mode port) port
adapter
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
PA-A2-4T1C-T3ATM—5-port ATM CES6 (4 T1
CBR7 ports and 1 T3 ATM port) port adapter
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
12.0(1)T, 12.1(1a)T1,
12.1 EC
Not Applicable
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
PA-A3-OC3SML—1-port OC-3c ATM,
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
PCI-based single-mode long reach port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
PA-POS-OC3SML—1-port POS OC-3 single-mode, 12.0(5)T1, 12.1(1a)T1,
long reach port adapter
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
PA-POS-OC3SMI—1-port OC3 single-mode,
intermediate reach port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
PA-POS-OC3MM—1-port POS OC3 multi mode
port adapter
12.0(5)T1, 12.1(1a)T1,
12.1 EC
12.0(1)T, 12.1(1a)T1,
12.1 EC
12.0(7)T, 12.1(1a)T1,
12.1 EC
Not applicable
12.1(1a)T, 12.1 EC
12.1(1a)T1, 12.1 EC
Not Applicable
PA-A3-E3—1-port E3 ATM, PCI-based port adapter 12.0(5)T1, 12.1(1a)T1,
12.1 EC
PA-A3-T3—1-port T3 ATM, PCI-based port
12.0(5)T1, 12.1(1a)T1,
adapter
12.1 EC
PA-A3-OC3MM—1-port OC-3c ATM, PCI-based
multi mode port adapter
PA-A3-OC3SMI—1-port OC-3c ATM, PCI-based
single-mode intermediate reach port adapter
Packet-Over-SONET (POS)
Dynamic Packet Transport (DPT)
PA-SRP-OC12SMX—2-port SRP8 OC12
single-mode, extended reach port adapter
1. To use a PA-4E 4-port Ethernet 10BASE-T port adapter in a Cisco uBR7246VXR, be sure that you have the minimum required hardware revision version 1.14,
part number 800-02070-04) or a more recent version of the port adapter.
2. To use a PA-8E 8-port Ethernet 10BASE-T port adapter in a Cisco uBR7246VXR, be sure that you have the minimum required hardware revision (version 1.14,
part number 800-02069-04) or a more recent version of the port adapter.
3. The Gigabit Ethernet port adapter must be combined with the appropriate optical fiber cable and a Gigabit Interface Converter (GBIC).
4. To use a PA-H 1-port HSSI port adapter in a Cisco uBR7246VXR, be sure that you have the minimum required hardware revision (version 1.17, part number
800-02747-06) or a more recent version of the port adapter.
5. To use a PA-2H 2-port HSSI port adapter in a Cisco uBR7246VXR, be sure that you have the minimum required hardware revision (version 1.3, part number
800-03306-02) or a more recent version of the port adapter.
6. CES = circuit emulationservice
7. CBR = constant bit rate
8. SRP = Spatial Reuse Protocol
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Power Supplies
The power supply contains a main power switch, OK LED, and either an AC-input power receptacle, or
two hardwired DC-input power leads and three M5 grounding connectors (depending on the type of
installed power supply). Adjacent to the lower power supply bay, two M5 chassis grounding receptacles
provide a chassis ground connection for electrostatic discharge (ESD) equipment or a two-hole
grounding lug for the AC-input power supplies.
The Cisco uBR7223 comes equipped with one 550W, AC-input or DC-input power supply. The
Cisco uBR7246VXR and Cisco uBR7246 support an optional, second power supply for load sharing and
power redundancy. If you purchased a Cisco uBR7246VXR or Cisco uBR7246 and you want to install
a second power supply, you must order the second power supply separately.
Note
The Cisco uBR7223 will not accommodate a second power supply.
Detailed instructions for handling and replacing the Cisco uBR7200 series universal broadband router
power supplies are contained in the documents:
•
Cisco uBR7200 Series Universal Broadband Router 550-Watt AC-Input Power Supply Replacement
Instructions
•
Cisco uBR7200 Series Universal Broadband Router 550-Watt DC-Input Power Supply Replacement
Instructions.
These documents are available on Cisco.com at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
These documents are also available on the Documentation CD-ROM.
A handle on the AC-input and DC-input power supply units provides a grip point for removing and
replacing the power supply. (Figure 1-14 on page 1-24 shows the faceplate of the AC-input power
supply. Figure 1-15 on page 1-24 shows the faceplate of the DC-input power supply.) Two captive
installation screws secure the power supply to the chassis and seat the power supply in the router
midplane. A Power OK LED indicates that the power supply is delivering +5 VDC to the router
midplane.
The AC-input power supply has a receptacle for an AC-input power cable. A modular power cable
connects the AC-input power supply to the site AC power source. A cable-retention clip secures the
power cable to the AC-input power supply.
Note
Each AC-input power supply has an electrical current rating of 7A.
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Figure 1-14 Cisco uBR7200 Series AC-Input Power Supply
Cable-retention clip
H10074
Captive installation screw
AC-input receptacle
Power switch
Handle
The DC-input power supply has a receptacle for two DC-input power leads. Three M5 grounding
receptacles are located on the front of the DC-input faceplate to provide connection for a ground lead.
A ground lead should be installed on two of the receptacles; using either the two receptacles that are
aligned vertically or the two receptacles that are aligned horizontally. A cover is attached to two
strain-relief studs on the power supply faceplate to secure the DC-input power leads running behind the
cover.
Note
Caution
Each DC-input power supply has an electrical current rating of 14A, 700 VA. Use a minimum of
12 AWG (4 mm2) wire for the input to each DC-input power supply.
The power input must be protected by a 20A circuit breaker or fuse that is in compliance with your
local electric regulations.
Figure 1-15 Cisco uBR7200 Series DC-Input Power Supply
Power
switch
Power
receptacle
M5 grounding
receptacles
12109
Captive
installation
screw
Strain-relief
studs
Handle
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Caution
To ensure adequate airflow across the Cisco uBR7246VXR and Cisco uBR7246 universal broadband
routers’ power supplies, a power supply or a power supply filler plate (with its attached air dam) must
be installed in each power supply bay.
Note
See Appendix A, “Cisco uBR7200 Series Router Specifications,” for AC-input and DC-input power
supply system power specifications, including input voltage and operating frequency ranges.
The Power OK LED goes off and the power supply shuts itself down when the internal DC voltages
exceed allowable tolerances or the internal temperature of the power supply exceeds allowable
tolerances. The power supply then attempts to restart itself within 10 seconds of the shutdown. If the
power supply cannot restart itself on the first attempt, it repeats the automatic restart sequence until the
power switch is manually switched to the off position, or the power cord is disconnected from the back
of the power supply or the power source. For a description of power-supply shutdown conditions and
thresholds, refer to the “Environmental Monitoring and Reporting Functions” section on page 6-2.
Caution
When the input power to a Cisco uBR7200 series universal broadband router power supply is
disconnected or lost, the power supply enters a reset cycle for 10 seconds. Wait at least 10 seconds
or move the power switch from one position to the other to restart the power supply. For example, if
the power supply was on when the power was disconnected or lost, move the power switch to the off
position then back to the on position. If you do not wait the full 10 seconds or move the power switch
from one position to the other, the power supply does not restart.
Fan Trays
The fan tray for the Cisco uBR7223, shown in Figure 1-16, consists of four fans that are attached to a
metal tray. The fan tray for the Cisco uBR7246VXR and Cisco uBR7246, shown in Figure 1-17, consists
of seven fans that are attached to a metal tray. In each of the Cisco uBR7200 series routers, the fan tray
is located on the left side of the chassis (when viewing the router from the front) and receives 12 VDC
through a DC power harness that connects directly to the router midplane.
Temperature sensors on the network processing engine and I/O controller monitor the internal air
temperature and send warning messages when the internal air temperature approaches a specified
threshold. If the internal temperature exceeds the specified threshold, the system environmental monitor
shuts down all internal power to prevent equipment damage from excessive heat.
To remove the fan tray from the chassis, loosen the captive installation screw on the front of the fan tray
and slide the tray out, using the attached handle.
Detailed instructions for removing and replacing the fan tray are contained in the document
Cisco uBR7200 Series Universal Broadband Router Fan Tray Replacement Instructions at the following
URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
The document is also available on the Documentation CD-ROM.
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15747
Figure 1-16 Cisco uBR7223 Fan Tray
H10079
Figure 1-17 Cisco uBR7246VXR and Cisco uBR7246 Fan Tray
The fan tray draws cooling air in through the intake vent on the right side of the chassis (when viewing
the router from the front) and moves the air across the internal components and out the exhaust vent on
the left side of the chassis. Figure 1-18 on page 1-27 shows the airflow through the router.
The left and right sides of the chassis must remain unobstructed to ensure adequate airflow and prevent
overheating inside the chassis; Cisco recommends at least 3 inches of clearance. (See the “Site
Requirements” section on page 2-5.)
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Figure 1-18 Internal Airflow—Top View
Power supply end
Exhaust air
(fan side)
H10077
Inlet flow
Port adapter and line card end
Cisco uBR7223 Chassis
The front of the chassis has one slot for an I/O controller, one slot for a single-width port adapter, two
slots for cable interface cards, one slot for a fan tray, and one bay for the subchassis and midplane. (See
Figure 1-19.)
Figure 1-19 Cisco uBR7223 Chassis
Subchassis and
midplane bay
(at rear)
I/O controller
slot
Port adapter
slot
62679
Fan tray
Cable interface
card slots
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Cisco uBR7246 and Cisco uBR7246VXR Chassis
The front of the chassis has one slot for an I/O controller, two slots for single-width port adapters (or
one dual-width port adapter), four slots for cable interface cards, one slot for a fan tray, and one bay for
the subchassis and midplane. See Figure 1-20.
Figure 1-20 Cisco uBR7246 Chassis and Cisco uBR7246VXR Chassis
Subchassis and midplane bay
I/O controller
(at rear)
slot
Port adapter slots
62686
Fan tray
Cable interface
card slots
Note
To replace the Cisco uBR7200 series chassis, you must remove all of its internal components;
therefore, when replacing the chassis, refer to the documents that explain how to remove and replace
the internal components. These documents accompany every chassis that is shipped from the factory
as a FRU. The documents are also available on the Documentation CD-ROM and on Cisco.com.
Subchassis and Midplane
The subchassis and midplane provide these functions for the Cisco uBR7200 series,
•
Distributes power from the power supply to the I/O controller.
•
Bridges the peripheral component interconnect (PCI) buses from the port adapters to the packet
static random-access memory (SRAM) on the NPE-200 or synchronous dynamic random-access
memory (SDRAM) on the NPE-300 or the NPE-400.
•
Arbitrates traffic across the PCI buses.
•
Generates clock signals for the port adapter on the PCI bus.
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Cisco uBR7223 Subchassis
The Cisco uBR7223 subchassis (the rear of the Cisco uBR7223) has one bay for a power supply and one
slot for a network processing engine. (See Figure 1-21.)
The cable-interface-card side of the Cisco uBR7223 midplane has two connectors for cable interface
cards, one connector for a port adapter, one connector for an I/O controller, and one connector for a fan
tray. The power supply side of the midplane has one connector for power supply and one connector for
the network processing engine. The midplane supplies DC power to the router’s internal components.
Figure 1-21 Cisco uBR7223 Subchassis and Midplane
Midplane
Top
Fan tray
slot
Network
processing
engine slot
Power
supply
bay
Captive installation
screws (2)
Power supply
Fan tray
receptacle
slot
16218
Back
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Cisco uBR7246VXR and Cisco uBR7246 SubChassis
The Cisco uBR7246VXR and Cisco uBR7246 subchassis (the rear of the Cisco uBR7246VXR and
Cisco uBR7246) have two bays for power supplies and one slot for a network processing engine. In both
cases, the subchassis also houses the router midplane. (See Figure 1-22.)
The cable-interface-card side of the Cisco uBR7246VXR and Cisco uBR7246 midplane has four
connectors for cable interface cards, two connectors for port adapters, one connector for an
I/O controller, and a connector for the fan tray. The Cisco uBR7246VXR also features one connector for
a clock card. The power supply side of the midplane has two connectors for power supplies and one
connector for a network processing engine. The midplane supplies DC power to the router’s internal
components.
Note
You must replace the entire subchassis in order to replace the router midplane in a
Cisco uBR7200 series universal broadband router.
Refer to the Cisco uBR7200 Series Universal Broadband Router Subchassis and Midplane Replacement
Instructions at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/5193sbm.pdf
The document is also available on the Documentation CD-ROM.
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Figure 1-22 Cisco uBR7246VXR and Cisco uBR7246 Subchassis and Midplane
Midplane
Top
Fan tray
slot
Network
processing
engine slot
Power
supply
bays
10475
Back
Captive
installation screws (6)
Power supply
receptacle
Fan tray
slot
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Flash Memory Cards
The Cisco uBR7200 series universal broadband router supports up to two installed Type II PCMCIA
flash memory cards provided by Cisco Systems.
Flash memory (flash memory cards and the flash SIMM on the I/O controller) allows you to remotely
load and store multiple system and boot helper images. You can download a new image over the network
and then add the new image to flash memory or replace existing files. You can also transfer images
between flash memory cards and the onboard flash memory SIMM. You can then boot the router either
manually or automatically from any of the stored images. Flash memory can also function as a TFTP
server to allow other routers to boot remotely from stored images or copy them into their own flash
memory.
For flash memory replacement information, see Memory Replacement Instructions for the Network
Processing Engine and Input/Output Controller on at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/memory/index.htm
For flash disk information, see Using the Flash Disk at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/72vxfru/5819fdsk.htm
These documents are also available on the Documentation CD-ROM.
Table 1-4 lists the flash memory card options supported by the Cisco uBR7200 series routers.
Table 1-4
Flash Memory Card Options
Memory Size, MB
Product Number
Supports
MEM-I/O-FLD20M
1
All NPEs
48
MEM-I/O-FLD48M
1
NPE-225, NPE-300, NPE-400
128
MEM-I/O-FLD128M1
20
NPE-225, NPE-300, NPE-400
1. These products are also available as flash memory card upgrades. To order an upgrade, add an equal sign (=)
after the product number, for example, MEM-I/O-FLC16M=.
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2
Preparing the Cisco uBR7200 Series Router for
Installation
This chapter describes the site requirements for installing the Cisco uBR7200 series universal broadband
router and contains the following sections:
•
Safety Recommendations, page 2-1
•
Site Requirements, page 2-5
•
Required Network Information, page 2-8
•
Installation Tools, page 2-9
•
Rack-Mount and Cable Management Kit, page 2-9
•
Equipment Required to Verify Your Plant’s RF Setup, page 2-10
•
Shipping Container Contents, page 2-11
•
Provisioning the Cable Headend, page 2-12
•
Site Preparation Checklist, page 2-20
•
Component Checklists, page 2-21
Safety Recommendations
The following safety guidelines will help to ensure your safety and protect the equipment. This list does
not cover all potentially hazardous situations, so be alert. Review the safety warnings listed in
Appendix G, “Regulatory Compliance and Safety Information,” before installing, configuring, or
maintaining the Cisco uBR7223, Cisco uBR7246VXR, or Cisco uBR7246 routers.
The installation of your Cisco uBR7200 series universal broadband router should be in compliance with
national and local electrical codes.
•
In the United States, National Fire Protection Association (NFPA) 70, National Electrical Code
(NEC).
•
In Canada, Canadian Electrical Code, part I, CC22.1.
•
In other countries, International Electrotechnical Commission (IEC) 364, part 1 through part 7.
Other safety issues to be aware of:
•
Never attempt to lift an object that might be too heavy for you to lift by yourself.
•
Always turn all power supplies off (0) and unplug all power cables before opening the chassis.
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Safety Recommendations
Warning
Note
•
Always unplug the power cable before installing or removing a chassis.
•
Keep the chassis area clear and dust-free during and after installation.
•
Keep tools and chassis components away from walk areas.
•
Do not wear loose clothing, jewelry (including rings and chains), or other items that could get caught
in the chassis.
•
For systems with installed AC-input power supplies, the Cisco uBR7200 series router ships with a
3-wire electrical grounding-type plug, which only fits into a grounding-type power outlet. This is a
safety feature. The equipment grounding should be in accordance with local and national electrical
codes.
•
For systems with installed DC-input power supplies, the Cisco uBR7200 series router does not ship
with any power cables. Use a minimum of 12 AWG (4 mm2) wire for the input to each DC-input
power supply. The equipment grounding should be in accordance with local and national electrical
codes.
•
The Cisco uBR7200 series router operates safely when it is used in accordance with its marked
electrical ratings and product usage instructions.
Only trained and qualified personnel should be allowed to install or replace this equipment.
For Australia and New Zealand, equipment is to be installed and maintained by service personnel
only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.
Warning
Ultimate disposal of this product should be handled according to all national laws and
regulations.
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only
with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer’s instructions.
Lifting the Cisco uBR7200 Series Router Safely
Before you install any of the routers, ensure that your site configuration is properly designed and
prepared so that you can avoid having to move the router later to accommodate power sources and
network connections.
•
A fully configured Cisco uBR7223 router weighs approximately 75 pounds (34.0 kilograms).
•
A fully configured Cisco uBR7246 router weighs approximately 100 pounds (45.4 kilograms).
•
A fully configured Cisco uBR7246VXR router weighs approximately 100 pounds (45.4 kilograms).
Whenever you lift a chassis or any heavy object, follow these guidelines:
•
Always disconnect all external cables before lifting or moving the chassis.
•
Do not attempt to lift the chassis by yourself; have someone assist you (see Figure 2-1 on page 2-3).
•
Ensure that your footing is solid, and balance the weight of the object between your feet.
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Safety Recommendations
•
Lift the chassis slowly; never move suddenly or twist your body as you lift.
•
Keep your back straight and lift with your legs, not your back. If you must bend down to lift the
chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.
•
Lift the chassis from the bottom; grasp the underside of the chassis exterior with both hands.
Lifting the Chassis (Cisco uBR7246 Shown)
H10072
Figure 2-1
Warning
Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift
with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.
To prevent damage to the chassis and components, never attempt to lift the chassis with the
handles on the power supplies or on the interface processors, or by the plastic panels on the front
of the chassis. These handles were not designed to support the weight of the chassis.
Safety with Electricity
Follow these basic guidelines when working with any electrical equipment:
•
Before beginning any procedures requiring access to the chassis interior, locate the emergency
power-off switch for the room in which you are working.
•
Carefully examine your work area for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
•
Disconnect all power and external cables before installing or removing a chassis.
•
Never assume that power has been disconnected from a circuit; always check.
•
Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
•
Do not work alone if potentially hazardous conditions exist.
•
Never install equipment that appears damaged.
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Safety Recommendations
Caution
You must power down the system before removing or replacing the I/O controller, clock card, or
network processing engine. The port adapters, cable interface cards, and redundant power supplies
are designed to be removed and replaced while the system is operating, without presenting an
electrical hazard or damage to the system.
In addition, use the guidelines that follow when working with any equipment that is disconnected from
a power source, but still connected to telephone wiring or other network cabling:
Warning
The telecommunications lines must be disconnected 1) before unplugging the main power
connector and/or 2) while the housing is open.
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
•
Never install telephone wiring during a lightning storm.
•
Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
•
Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
•
Use caution when installing or modifying telephone lines.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are
improperly handled, can result in complete or intermittent system failures. The network processing
engine, I/O controller, each cable interface card, each port adapter, and the clock card consists of a
printed circuit board that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding,
connectors, and a handle are integral components of the carrier. Although the carrier helps protect the
boards, use an antistatic strap whenever handling the network processing engine, I/O controller,
cable interface cards, port adapters, and the clock card. Handle the carriers by the handles and the carrier
edges only; never touch the boards or connector pins.
Caution
Always tighten the captive installation screws on the network processing engine, I/O controller,
cable interface cards, and the clock card. These screws prevent accidental removal, provide proper
grounding for the system, and help ensure that the bus connectors are properly seated in the midplane.
Following are guidelines for preventing ESD damage:
•
Always use an ESD wrist strap or ankle strap and ensure that it makes good skin contact.
•
When handling a removed network processing engine, I/O controller, cable interface card, port
adapter, or clock card, make sure that the equipment end of your ESD strap is attached to an
unfinished chassis surface of the router; do not touch the printed circuit board, and avoid contact
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Site Requirements
between the printed circuit board and your clothing. Always place the network processing engine,
I/O controller, cable interface card, port adapter, or clock card component side up on an antistatic
surface or in a static shielding bag. If you are returning the item to the factory, immediately place it
in a static shielding bag.
Caution
•
Ensure that the I/O controller and network processing engine are fully inserted in their respective
chassis slots and that their captive installation screws are tightened. The captive installation screws
prevent accidental removal, provide proper grounding for the system, and help ensure that the bus
connectors are seated in the midplane.
•
Ensure that each port adapter is fully inserted in its chassis slot and the port adapter retention clip
is in the locked position.
•
Ensure that each cable interface card is fully inserted in its chassis slot and that its captive
installation screws are tightened.
•
Ensure that the clock card is fully inserted in its chassis slot and that its captive installation screws
are tightened.
For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 megohms.
Site Requirements
To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and
prepare your site before installation. Take into account the following criteria:
Note
•
Verify that your cable network meets system requirements and DOCSIS or EuroDOCSIS
downstream and upstream specifications.
•
Select forward and reverse channel frequencies from the range specified in your channel plan.
•
Make sure that the site maintains an ambient temperature of 32 to 104 degrees Fahrenheit (0 to
40 degrees Celsius), and keep the area around the chassis as free from dust as is practical.
To locate the most reliable channels for your downstream and upstream channel plans, Cisco
recommends that you perform a sweep of all available channels for at least a 24-hour period to verify
the presence or absence of impulse or ingress noise.
AC Power
The AC-input power supply uses a power factor corrector that allows the Cisco uBR7200 series router
to operate on input voltage and frequency within the ranges of 100 to 240 VAC and 50/60 Hz.
Note
Cisco recommends an uninterruptable power source to protect against power failures at your site. An
AC-input power supply has an electrical current rating of 7A.
See Appendix A, “Cisco uBR7200 Series Router Specifications,” for system power specifications,
including input voltage and operating frequency ranges.
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Site Requirements
DC Power
The DC-input power supply operates at –48 volts direct current (VDC) input voltage and supplies +3.5V,
+5.2V, +12.2V, –12.2V, +16V, and –16V DC power to the router's internal components through the router
midplane.
Note
Each DC-input power supply has an electrical current rating of 14A, 700 VA. Use a minimum of 12
AWG (4 mm2) wire for the input to each DC-input power supply. The power input must be protected
by a 20A circuit breaker or fuse that is in compliance with your local electric regulations.
See Appendix A, “Cisco uBR7200 Series Router Specifications,” for system power specifications,
including input voltage and operating frequency ranges.
Site Environment
Table 2-1 lists the operating and nonoperating environmental site requirements. The following ranges
are those within which the Cisco uBR7200 series universal broadband router continues to operate;
however, a measurement that is approaching the minimum or maximum of a range indicates a potential
problem. You can maintain normal operation by anticipating and correcting environmental anomalies
before they approach the minimum or maximum of an operating range.
To provide airflow through the Cisco uBR7200 series router, cooling air is drawn in through the air
intake vent on the right side of the chassis (when viewing the router from the front) and is exhausted
through the left side of the chassis. Keep the right and left side of the chassis clear of obstructions and
away from the exhaust of other equipment.
Table 2-1
Specifications for Operating and Nonoperating Environments
Specification
Minimum
Maximum
Temperature, ambient operating
32 degrees Fahrenheit
(0 degrees Celsius)
104 degrees Fahrenheit
(40 degrees Celsius)
Temperature, ambient nonoperating and storage
–4 degrees Fahrenheit
(–20 degrees Celsius)
149 degrees Fahrenheit
(65 degrees Celsius)
Humidity, ambient (noncondensing) operating
10%
90%
Humidity, ambient (noncondensing) nonoperating 5%
and storage
95%
Altitude, operating and nonoperating
Sea level
10,000 feet (3,050 meters)
Vibration, operating
5 to 200 Hz, 0.5 g (1 oct./min.)
–
Vibration, nonoperating
5 to 200 Hz, 1 g (1 oct./min.)
200 to 500 Hz, 2 g (1 oct./min.)
–
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Site Requirements
Site Configuration: Maintaining Normal Operation
Planning a proper location for the Cisco uBR7200 series universal broadband router and the layout of
your equipment rack or wiring closet are essential for successful system operation. Equipment placed
too close together or inadequately ventilated can cause system overtemperature conditions. In addition,
chassis panels made inaccessible by poor equipment placement can make system maintenance difficult.
Following are precautions that can help avoid problems during installation and ongoing operation.
General Precautions
Follow these general precautions when planning your equipment locations and connections:
•
Use the show environment command regularly to check the internal system status. The
environmental monitor continually checks the interior chassis environment; it provides warnings for
high temperature and maximum and minimum voltages and creates reports on any occurrences. If
warning messages are displayed, take immediate action to identify the cause and correct the
problem.
•
Cisco recommends keeping the Cisco uBR7200 series router off the floor and out of any area that
tends to collect dust, excessive condensation, or water.
•
Follow ESD prevention procedures to avoid damage to equipment. Damage from static discharge
can cause immediate or intermittent equipment failure.
•
Ensure that the network processing engine, I/O controller, port adapters, any blank port adapters,
clock card, blank clock card, cable interface cards, any blank interface cards, power supplies, and
any power supply filler plates are in place and secure. The fans direct cooling air throughout the
chassis interior; a loose component or empty slot can redirect the airflow away from active
components and cause overheating.
Power Considerations
Follow these precautions and recommendations when planning power connections to the
Cisco uBR7200 series router:
•
Check the power at your site before installation and periodically after installation to ensure that you
are receiving clean power. Install a power conditioner and appropriate surge suppression if
necessary.
•
Install proper grounding to avoid damage from lightning and power surges.
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Required Network Information
Required Network Information
After you install the chassis, your system administrator must configure the individual and system
interfaces before you connect your system to external networks. Refer to the following documentation
for configuration information.
Cisco uBR7200 Series Software Configuration Guide at the following URL
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
Cisco IOS Configuration Fundamentals Configuration Guide at the following URL
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/
Cisco Broadband Cable Command Reference Guide at the following URL
http://www.cisco.com/univercd/cc/td/doc/product/cable/bbccmref/
This documentation is also available on the documentation CD-ROM. See “Obtaining Documentation”
section on page -xv for more information.
Before You Begin
Be prepared with global (system-wide) parameters such as:
•
Host names,
•
Passwords,
•
Routing protocols,
•
Configuration information for each interface such as
– Addresses
– Rates or speeds of operation
– Routing protocol specifics
Following is information you might need, depending on the services you plan to offer:
•
Host name for the router.
•
Passwords to prevent unauthorized privileged-level access to the EXEC command interpreter and
for individual virtual terminal lines.
•
Protocols you plan to route.
•
IP addresses and subnet masks, if you are routing IP.
•
Dial-up access telephone numbers, user names, and passwords for telco return operation
•
RADIUS security and accounting configuration
•
Gateway and gatekeeper zone configuration for your H.323 VoIP network
•
Gateway and call-agent configuration for your SGCP VoIP network
•
Zone names, network numbers, or node numbers for the new interfaces, if required.
•
Operating speeds for specific interfaces—For example, serial interfaces operate at speeds of up to
2 Mbps. The speed of an interface often depends on the speed of the remote device to which it is
attached.
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Installation Tools
Installation Tools
Your Cisco uBR7200 series universal broadband router chassis is fully assembled at the factory; no
assembly is required. However you will need the following tools and equipment to install the chassis and
the rack-mount and cable management kit:
•
Number 2 Phillips screwdriver
•
3/16-inch flat-blade screwdriver
•
7/16-inch flat-blade screwdriver
•
7/16-inch torque wrench for connecting coaxial cables to the cable F-connectors on the
cable interface cards—recommended torque is 20 inch-pounds (optional)
•
8-mm wrench or nut driver, or adjustable wrench (for connecting a grounding lug to a DC-input
power supply only)
•
7-mm wrench or nut driver, or adjustable wrench (for connecting the DC-input power lead
strain-relief cover to a DC-input power supply only)
•
12 AWG (4.0 mm2) cable with a minimum of three conductors rated for at least 140 degrees
Fahrenheit (60 degrees Celsius) (for DC-input power supply installations only)
•
Standard wire stripper (for DC-input power supply installations only)
•
Tape (for securing the handle of a DC circuit breaker in the OFF position when a DC-input power
supply is powered down)
•
Tape measure (optional)
•
Level (optional)
Rack-Mount and Cable Management Kit
The rack-mount and cable management kit includes the following parts:
Note
•
Two rack-mount brackets for mounting the chassis in the rack.
•
One cable-management bracket to relieve the strain on installed port adapter and cable interface card
interface cables.
•
Four M4 x 6-mm (Cisco uBR7223 router) or 8 M4 x 6-mm (Cisco uBR7246VXR and
Cisco uBR7246 router) Phillips flathead screws to secure the rack-mount brackets to the chassis.
•
Two M4 x 6-mm (Cisco uBR7223 router) or 4 M4 x 6-mm (Cisco uBR7246VXR and
Cisco uBR7246 router) Phillips panhead screws to secure the cable-management bracket to the
chassis.
•
Four 10/32 x 3/8-inch slotted binderhead screws to secure the rack-mount brackets to the rack rails.
You must install the cable-management bracket on the right side of the chassis, when viewed from
the front. If the cable-management bracket is installed on the left side of the chassis, where the
internal fans are located, you will not be able to easily remove or replace the fan tray. If you install
your Cisco uBR7200 series router with the rack-mount brackets at the front of the chassis, you cannot
install a cable-management bracket.
For more information on the rack-mount brackets and cable-management bracket, refer to the
“Cisco uBR7200 Series Chassis Rack-Mounting Options” section on page 3-3.
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Equipment Required to Verify Your Plant’s RF Setup
Equipment Required to Verify Your Plant’s RF Setup
To verify your plant’s RF setup, you need the following:
•
IF-to-RF upconverter
•
RF spectrum analyzer
•
For coaxial cabling:
– Diplex filters/splitters
– Coaxial cable crimping tool
– New coaxial cable
– Coaxial jumpers that are at least 2 to 3 feet long (maximum of 5 feet)
Note
•
For fiber networks, optical receivers for each upstream optical path
•
Assorted RF attenuators (with at least two 20-dB attenuators)
For headend RF and data setups, refer to Chapter 4, “Connecting the Cisco uBR7200 Series Router
to the Cable Headend.” Refer to Appendix F, “Manufacturers for Headend Provisioning
Requirements,” for a list of manufacturers. Refer to Appendix C, “Cable Specifications,” for coaxial
cabling specifications.
In addition, you might need the following:
Note
•
Crossover Ethernet cable with RJ-45 connectors—If you plan to connect a computer directly to an
Ethernet port on a PA-4E port adapter or a PA-8E port adapter installed in the Cisco uBR7200 series
router, you need this type of cable.
•
Data service unit (DSU) to connect each serial port to an external network.
•
One serial port adapter cable for each serial port to connect the port with the remote device or
network. (The operating speeds of the port interfaces, and other information specific to each port
adapter, can be found in the respective port adapter configuration notes.)
•
To connect a serial port to a T1 network, you need a T1 CSU/DSU that converts the High-Level Data
Link Control (HDLC) synchronous serial data stream into a T1 data stream with the correct framing
and ones density. (Some telephone systems require a minimum number of 1 bit per time unit in a
data stream, called ones density.) Several T1 CSU/DSU devices are available as additional
equipment, and most provide either a V.35, EIA/TIA-449, or EIA-530 electrical interface.
•
Fast Ethernet transceiver.
•
Cisco uBR900 series cable access router or DOCSIS-based STB and CPE devices to test full system
functionality.
When the Cisco uBR7200 series router starts running, IF downstream output is generated. For more
information, see the “Powering On the Cisco uBR7200 Series Router” section on page 3-24.
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Shipping Container Contents
Shipping Container Contents
When you receive your Cisco uBR7200 series universal broadband router, use the following procedure
to check the contents of the shipping container. Use the “Cisco uBR7200 Series Router Installation
Checklist” section on page 3-1 in Table 3-1 and either the “Cisco uBR7223 Component List” section on
page 2-21 or the “Cisco uBR7246 and Cisco uBR7246VXR Component List” section on page 2-22 to
ensure you received all the components that you ordered.
Note
Do not discard the shipping container. You will need the container if you move or ship your
Cisco uBR7200 series router in the future.
Verifying the Shipping Container Contents
Step 1
Step 2
Verify that the following are included in the shipping container (the accessories box might be separate):
•
One Cisco uBR7200 series universal broadband router chassis containing all of the components you
ordered for your system (except the rack-mount and cable-management kit)
•
One or more accessories boxes (some or all might be shipped separately)
Check the contents of the accessories box against the “Installation Checklist” and the packing slip to
verify that you received all listed equipment, which should include the following:
•
One modular power cable for an AC-input power supply. (If you purchased a Cisco uBR7246VXR
or Cisco uBR7246 router with a redundant power supply, you should receive two power cables).
•
One rack-mount and cable-management kit (3 brackets and 10 mounting screws for the
Cisco uBR7223 router and 3 brackets and 16 mounting screws for the Cisco uBR7246VXR and
Cisco uBR7246 routers).
•
Optional equipment that you ordered, such as network interface cables, transceivers, or special
connectors.
•
Cisco uBR7200 series hardware documentation (the Cisco uBR7200 Series Universal Broadband
Router Hardware Installation Guide)—this publication,
•
CNR or CSRC provisioning documentation, or both.
•
Cisco IOS software documentation, if ordered.
Step 3
Verify that the port adapters installed in your Cisco uBR7200 series router match the port adapter types
on the packing list.
Step 4
Verify that the number of cable interface cards installed in your Cisco uBR7200 series router matches
the number of cable interface cards that you ordered.
Step 5
Refer to Appendix H, “Site Log,” then to the “Cisco uBR7200 Series Chassis Rack-Mounting Options”
section on page 3-3 to begin the installation.
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Provisioning the Cable Headend
Provisioning the Cable Headend
This section describes the necessary preparations to make at the cable headend before you install the
Cisco uBR7200 series universal broadband router.
Two-Way Data and VoIP
To prepare for two-way data operation, including digitized voice and fax, ensure that the following
conditions are met:
Note
•
The cable headend equipment is properly aligned and certified for two-way transmission based on
procedures provided by the manufacturers of the equipment and in accordance with DOCSIS or
EuroDOCSIS RF Interface Specifications.
•
The cable headend is wired for narrowcast downstream data transmission.
•
The cable headend is wired to supply an RF feed from the upstream fiber-optic receivers to the
Cisco uBR7200 series router.
•
Upstream frequencies are allocated for data transmission.
•
Upstream impairments are measured and understood, and comply with recommendations in
DOCSIS or EuroDOCSIS RF Interface Specifications.
•
Upstream ports are configured as appropriate to support frequency agility.
•
Downstream frequencies are assigned.
•
Internet connectivity is established.
•
Internet addresses are obtained and allocated.
•
All RF connectivity is verified.
For a VoIP system using H.323, ensure that the CMTS has been properly provisioned with equipment
such as VoIP gateways and gatekeepers. For SGCP-based VoIP systems, ensure that the CMTS has
been properly provisioned with equipment such as VoIP gateways and call-agents.
Telco Return
To support telco return, ensure that:
•
Your downstream plant meets DOCSIS or EuroDOCSIS specifications.
•
Your headend is wired for narrowcast downstream data transmission.
•
You have assigned downstream frequencies.
•
All equipment needed to support upstream traffic over the PSTN, as well as to monitor telco return
service features is installed. Key components include:
– Dial-up access server (for example, the Cisco AS5300 or Cisco AS5800)
– RADIUS dial security server
•
All third-party, telco return cable interfaces are DOCSIS-compliant.
•
Your Cisco IOS software image supports telco return functionality.
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Headend Certification
The cable headend plant must pass both analog and digital certification:
•
In the United States, the Federal Communications Commission (FCC) mandates minimum technical
performance requirements for cable systems.
•
For international, consult with local agencies for certification requirements.
The digital certification process is described in Chapter 4, “Connecting the Cisco uBR7200 Series
Router to the Cable Headend.”
IF-to-RF Upconverter
To be compatible with cable television system frequency division multiplexing, install an external
IF-to-RF upconverter that translates the uBR's cable interface card downstream IF signal to the desired
downstream RF carrier frequency.
Upconverters are available from many manufacturers and can be found in configurations ranging from a
fixed number of ports to flexible multislot, multiport models. Install and configure enough upconverter
ports to support the number of downstream cable interface card ports installed in each Cisco uBR7200
series router you are installing. The number of upconverter units needed depends on the upconverter
manufacturer. Appendix F, “Manufacturers for Headend Provisioning Requirements,” lists upconverter
manufacturers, websites for more information on upconverter products, and models of upconverters that
are compatible with the Cisco uBR7200 series router.
The upconverter is installed between the Cisco uBR7200 series router and the combiner. (See Figure 4-3
on page 4-5 and Figure 4-4 on page 4-6.)
Depending on the channel plan you are employing, your upconverters must support different
functionality. In a North American channel environment, your upconverter needs to receive a 44-MHz
downstream IF transmission from cable interface cards in the Cisco uBR 7200 series router and transmit
6-MHz RF digitally modulated carriers in the 88 to 860 MHz range. In an 8-MHz EuroDOCSIS
environment your upconverter needs to receive a 36.125 MHz downstream IF transmission from cable
interface cards in the Cisco uBR 7200 series router and transmit 8-MHz RF digitally modulated carriers
in the 108 to 862 MHz range.
Refer to the documentation that ships with your upconverter for details on upconverter operation and
configuration. See the “Connecting and Configuring the Downstream” section on page 4-4.
Note
An analog channel modulator with external IF loops is not suitable for use as a digital quadrature
amplitude modulation (QAM) upconverter. These units typically do not have the phase noise
performance levels required for 64- and 256-QAM digital signals, and they might cause degraded
performance and possible system failure.
Note
The combiner refers to all cables, amplifiers, and passive components (splitters, directional couplers,
taps, and commercially manufactured combining networks) at the headend or cable distribution
center that connect the Cisco uBR7200 series router to the hybrid fiber-coaxial (HFC) network.
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Provisioning the Cable Headend
Diplex Filters
For coaxial cabling, diplex filters must be installed in the RF path between the cable interface cards in
the Cisco uBR7200 series universal broadband router and cable interfaces and STBs. Diplex filters
separate the downstream signals from the upstream signals.
Note
For fiber optics, laser transmitters and optical receivers handle the frequency separation of upstream
and downstream. Refer to the next section, “Receivers”.
High-frequency signals flow in the downstream direction from the Cisco uBR7200 series router to
cable interfaces and STBs. Low-frequency signals flow in the upstream direction from the
cable interfaces to the Cisco uBR7200 series router.
A diplex filter has three ports: low, high, and common. The downstream attaches to the high port because
it runs at high frequency. The upstream attaches to the low port, because it runs at a low frequency. The
common port attaches to a splitter attached to one or more cable interfaces and STBs.
In two-way cable networks, the diplex filter takes the upstream and downstream and combines them on
one cable for the cable interface. The downstream output signal from the Cisco uBR7200 series router
runs through the upconverter and then enters the high filter port of the diplex filter. The signal exits the
common port of the filter and is distributed to the cable interfaces. The upstream signal from the cable
modem enters the common port of the diplex filter and flows to the upstream receive ports of the
Cisco uBR 7200 series cable interface cards via the diplex filter's low port.
Note
Appendix F, “Manufacturers for Headend Provisioning Requirements,” provides a list of diplex filter
manufacturers and websites for more information.
Receivers
If the upstream channels of your cable plant terminate at the headend over fiber-optic lines, ensure that
you have a receiver allocated for each upstream in your network.
DHCP, DNS, TFTP, and TD Servers
A DHCP server must be installed at the headend. The DHCP server must also offer a time-of-day (TD)
server option that is compliant with RFC 868.
In conjunction with the DHCP server, a Domain Name System (DNS) server must be installed to
translate names of network nodes into IP addresses. A TFTP server must be installed to facilitate the
transfer of DOCSIS configuration files over the broadband network.
Cisco provides a configuration tool with every Cisco uBR7200 series universal broadband
router—Cisco Network Registrar (CNR)—to automate dynamic IP address allocation to
cable interfaces, PCs, and other devices on the broadband network. CNR provides integrated DHCP and
DNS services for your network configuration.
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Provisioning the Cable Headend
Telco Return
The following sections describe CMTS equipment necessary to support telco return service.
Dial-Up/Remote Access Servers
Because a telco return cable network relies on the local telephone system to complete the upstream data
path to the Cisco uBR7200 series, you need to be sure that you provision your network with a dial-up
access server and other required equipment through which remote cable interfaces will gain access to
your headend.
RADIUS Dial Security Servers
After remote telco return cable interfaces have initiated dial-up to the CMTS via the network access
server, a RADIUS dial security server typically authenticates their respective usernames and passwords
or MAC address and passwords and then determines whether or not to allow the connection.
In addition to the dial-up numbers provided in telephony channel descriptor (TCD) messages originating
from the Cisco uBR7200 series, username and password information is included in TCD messages to
validate the cable interface’s upstream connection. After dialing in to the network access server, the
username and password portions of the TCD messages are passed through a RADIUS dial access server
for authentication before the upstream data path can be completed. (See Figure 2-2.)
Figure 2-2
Servers on an HFC Network
Security
Cisco Network
server
Registrar
DHCP/DNS server (optional)
Log
server
(optional)
Remote
Cisco uBR7200
access server*
series
Cisco 7500
series router
Internet
Time-of-day
server
*A remote access server is required on an HFC network only
when you want to offer VoIP using H.323 or telco return service.
27978
TFTP
server
Authentication, Authorization, and Accounting Servers
Authentication, authorization, and accounting (AAA) servers are essential to the network, because they
typically monitor usage for subscriber billing and record keeping. AAA features call upon a RADIUS
security server to help authenticate and monitor users’ access.
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Provisioning the Cable Headend
VoIP Gateways and Gatekeepers
To support digitized voice transmission using Cisco IOS Release 12.0(5)T1 CMTS images, be sure to
include VoIP gateways and gatekeepers in your configuration. Cisco IOS Release 12.0(5)T1 supports
VoIP by using the H.323 protocol. VoIP gateways convert IP-based voice packets into standard PSTN
voice traffic, making the process of placing calls over the IP network transparent to users.
VoIP gatekeepers manage H.323-compliant gateways throughout the network. Gatekeepers also manage
traffic between their local cable system networks, as well as the networks of other VoIP gatekeepers.
VoIP SGCP Pass-Through
To support digitized voice transmission using Simple Gateway Control Protocol (SGCP), be sure to
include VoIP gateways and external call control elements (often referred to as callagents) in your
configuration. Cisco IOS Release 12.0(6)T and later versions of Cisco IOS Release 12.0 T and
Cisco IOS Release 12.0(6)XR and later versions of Cisco IOS Release 12.0 X support VoIP
communication using the SGCP 1.1 protocol. Just as with H.323 systems, VoIP gateways in an SGCP
environment convert IP-based voice packets into standard PSTN voice traffic, making the process of
placing calls over the IP network transparent to users.
Call-agents manage SGCP-compliant gateways throughout the network, allowing them to engage in
common channel signaling (CCS) over a 64-kbps circuit emulation service (CES) circuit.
Headend Wiring
This section provides guidelines for setting up the headend wiring and cabling at your site. When
planning the location of the new system, consider the distance limitations for signaling, EMI, and
connector compatibility, as described in the following sections.
Interference Considerations
When wires are run for any significant distance in an electromagnetic field, interference can occur
between the field and the signals on the wires. This fact has two implications for the construction of
headend wiring:
•
Bad wiring practice can result in radio interference emanating from the wiring, ingress noise,
co-channel interference, and degraded or erratic universal broadband router performance.
•
Strong EMI, especially when caused by lightning or radio transmitters, can destroy the signal drivers
and receivers in the Cisco uBR7200 series router, and can even create an electrical hazard by
conducting power surges through lines and into equipment. (Review the safety warnings in the
“Safety with Electricity” section on page 2-3.)
If you use twisted-pair cable in your headend wiring with a good distribution of grounding conductors,
the wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a
high-quality twisted-pair cable with one ground conductor for each data signal when applicable.
If wires exceed recommended distances, or if wires pass between buildings, give special consideration
to the effect of a lightning strike in your vicinity. The electromagnetic pulse caused by lightning or other
high-energy phenomena can easily couple enough energy into unshielded conductors to destroy
electronic devices. If you have had EMI problems in the past, you might want to consult experts in
electrical surge suppression and shielding.
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Distance Limitations and Interface Specifications
The size of your networks and the distances between connections depend on the type of signal, the signal
speed, and the transmission media (the type of cabling used to transmit the signals). For example,
standard coaxial cable has a greater channel capacity than twisted-pair cabling. The distance and rate
limits in the following descriptions are the IEEE recommended maximum speeds and distances for
signaling; however, you can usually get good results at speeds and distances far greater than these. For
example, the recommended maximum rate for V.35 is 2 Mbps, and it is commonly used at 4 Mbps
without any problems. If you understand the electrical problems that might arise and can compensate for
them, you should get good results with rates and distances greater than those shown here; however, do
so at your own risk.
Note
Cisco recommends that you do not exceed specified transmission rate and distance limits.
When preparing your site for network connections to the Cisco uBR7200 series router, you must
consider a number of factors related to each type of interface:
•
The type of cabling required for each type of interface (fiber, thick or thin coaxial, shielded
twisted-pair, or unshielded twisted-pair cabling)
•
Distance limitations for each signal type
•
The specific cables you need to connect each interface
•
Any additional interface equipment you need, such as transceivers, hubs, switches, modems,
channel service units (CSUs), or data service units (DSUs)
•
Cable pinouts if you plan to build your cables
Before installing the Cisco uBR7200 series, have all additional external equipment and cables available.
The information listed above is contained in the documentation that is shipped with each port adapter.
For example, if you need Ethernet distance limitations and pinouts, refer to PA-8E Ethernet 10BASE-T
Port Adapter Installation and Configuration at the following URL
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm.
For ordering information, contact a customer service representative. (See the “Obtaining
Documentation” section on page xv for more information.)
Equipment Racks
The rack-mounting hardware included with the Cisco uBR7200 series universal broadband router is
suitable for most 19-inch equipment racks and telco-type racks. To easily access field-replaceable units
(FRUs) while the router is installed in a rack, ensure that you have access to the front and rear of the
router.
Before using a particular rack, check for obstructions (such as a power strip) that could impair
rack-mount installation. If a power strip does impair a rear rack-mount installation, remove the power
strip before installing the Cisco uBR7200 series router in the rack, then replace it after the chassis is
installed. As an alternative, you can mount the Cisco uBR7200 series router on an equipment shelf if the
rack dimensions allow you to secure the router to the shelf, and the overall configuration permits safe
installation and access. However, Cisco recommends rack-mounting the Cisco uBR7200 series router.
Figure 2-3 on page 2-18 shows the Cisco uBR7200 series router footprint and outer dimensions.
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Provisioning the Cable Headend
When rack mounting the Cisco uBR7200 series router, consider the following information:
•
To mount the router between two posts or rails using the brackets, the inner clearance (the width
between the inner sides of the two posts or rails) must be at least 17.5 inches (44.45 cm).
•
The height of the chassis:
– Cisco uBR7223 chassis is 7.70 inches (17.02 cm).
– Cisco uBR7246VXR chassis are 10.5 inches (26.67 cm).
– Cisco uBR7246 chassis are 10.5 inches (26.67 cm).
•
When mounting the router in 4-post or telco-type racks, be sure to use all the screws and the brackets
provided to secure the chassis to the rack posts.
Figure 2-3
Cisco uBR7200 Series Router Footprint and Outer Dimensions (View from Top Looking
Down)
17.38 in.
21.25 in.
H10078
23.25 in.
When planning your rack installation, consider the following information:
Note
Cisco recommends the rear bracket mounting system for four-post racks, because this method
enables you to keep cables from protruding too far out in front of the Cisco uBR7200 series router
and simultaneously manage the cables at the front of the chassis with the cable management bracket.
•
Install the Cisco uBR7200 series router in an open rack whenever possible. If installation in an
enclosed rack is unavoidable, ensure that the rack has adequate ventilation.
•
If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and
dimensions of the chassis. Figure 2-3 shows the chassis footprint, which you will need if you are
designing a customized shelf. Cisco recommends that you use the rack-mount kit designed for your
particular Cisco uBR7200 series router,
– Rack-mount kit for the Cisco uBR7223
(product number ACS-uBR7223-RMK=)
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– Rack-mount kit for the Cisco uBR7246VXR or Cisco uBR7246
(product number ACS-uBR7200-RMK=)
•
Allow sufficient clearance around the rack for maintenance. If the rack is mobile, you can push it
back near a wall or cabinet for normal operation and pull it out for maintenance (installing or moving
port adapters, connecting cables, or replacing or upgrading components). Otherwise, allow at least
23.25 inches (59.06 cm) of clearance at the front, and 19 inches (48.3 cm) at the back to remove any
of the field-replaceable units.
•
Maintain a minimum clearance of 3 inches (7.72 cm) on the right and left of the chassis for the
cooling air inlet and exhaust ports, respectively. Avoid placing the Cisco uBR7200 series router in
an overly congested rack or directly next to another equipment rack; otherwise, the heated exhaust
air from other equipment can enter the inlet air vents and cause an overtemperature condition inside
the router.
•
Always install heavier equipment in the lower half of a rack to maintain a low center of gravity and
prevent the rack from falling.
•
If you use telco-type racks, be sure that the rack is bolted to the floor and secured, because in these
types of installations, only one end of the chassis mounts to the two rack posts with the brackets.
Ensure that the weight of the chassis does not make the rack unstable.
•
Install and use the cable-management bracket included with the Cisco uBR7200 series rack-mount
kit to keep cables organized and out of the way of the port adapters and I/O controller. Consider the
equipment and cabling that is already installed in the rack. Ensure that cables from other equipment
will not impair access to the port adapters, or require you to disconnect cables unnecessarily to
perform equipment maintenance or upgrades.
•
You cannot install the cable-management bracket on a Cisco uBR7200 series router that you have
mounted from the front.
In addition to the preceding guidelines, review the precautions for avoiding overtemperature conditions
in the “Site Environment” section on page 2-6. To properly install the Cisco uBR7200 series router
chassis in a rack, refer to the instructions in the “Cisco uBR7200 Series Chassis Rack-Mounting
Options” section on page 3-3.
Caution
Do not install the Cisco uBR7200 series chassis in an enclosed rack or room that is not properly
ventilated or air conditioned. The Cisco uBR7200 series chassis overheats if the input air temperature
reaches 105 degrees Fahrenheit (41 degrees Celsius).
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Site Preparation Checklist
Site Preparation Checklist
Before installing the Cisco uBR7200 series router, assemble the equipment needed to support your
network configuration and subscriber service offering. Ensure all power and cabling requirements are
met based on the equipment to be installed. Also ensure that environmental conditions are met to
maintain proper equipment operation.
Table 2-2 is a checklist that identifies the key tasks to complete.
Table 2-2
Site Preparation Checklist
Task
Verified By
Date
General:
Safety recommendations and guidelines reviewed.
Required general CMTS preparations completed.
Site power voltages verified.
Site environmental specifications verified.
Downstream and upstream channel plans created.
Cable plant balanced, swept and verified to comply with DOCSIS or EuroDOCSIS
recommendations.
Optical receivers adjusted for proper upstream RF output levels.
Required passwords, IP addresses, device names available.
All additional CMTS equipment to support Internet access services, including
upconverter and all other RF-related equipment, servers and other host computers, a
Cisco uBR900 series cable access router, and console accessory kit to test operation of
your network.
Required tools and cables available.
Telco Return Configurations:
Telco return dial-up plan created.
Network access server installed and configured.
Telephone circuits, connections, and all equipment to support telco return.
IP Telephony Configurations:
Gatekeeper and gateway equipment installed and configured.
Dial plan based on the supported VoIP protocol used—H.323 or SGCP.
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Component Checklists
Component Checklists
•
Check off the equipment as it is unpacked.
•
Titles and quantities of documents will vary.
•
Order the Cisco IOS documentation sets when you order the hardware.
Cisco uBR7223 Component List
Use this list to verify the contents of the shipping container.
Table 2-3
Cisco uBR7223 Component List
Component and Description
Received
•
Cisco uBR7223 chassis
•
Network processing engine
•
I/O controller
•
One AC-input or one DC-input power supply
•
Up to one port adapter
•
Up to two cable interface cards (blank cable interface cards should be installed in empty cable
interface card slots)
•
Up to two flash memory cards
The following accessories might arrive in separate shipping containers:
•
Rack-mount and cable-management kit—Two rack-mount brackets, one cable-management bracket,
four M4 x 6-mm Phillips flathead screws, two M4 x 6-mm Phillips panhead screws, and four 10/32
x 3/8-inch slotted binderhead screws
•
AC-input power cables—One AC-input power cable (if AC-input power supply ordered)
Note
All hardware and software documentation is also found on the web at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/index.htm
•
Documentation, including the following:
– Cisco Documentation CD-ROM
– Installation guides for installed FRU
– Cisco Information Packet
– Cisco Network Registration documentation—if ordered
– Cisco uBR7200 series hardware documentation (the Cisco uBR7200 Series Universal
Broadband Router Hardware Installation Guide)—this publication—if ordered
– Cisco uBR7200 series software documentation (the Cisco uBR7200 Series Universal
Broadband Router Software Configuration Guide)—if ordered
– Cisco IOS software documentation set—if ordered
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Component Checklists
Cisco uBR7246 and Cisco uBR7246VXR Component List
Use this list to verify the contents of the shipping container.
Table 2-4
Cisco uBR7246VXR and Cisco uBR7246 Component List
Description
Received
•
Cisco uBR7246VXR or Cisco uBR7246 chassis
•
Network processing engine
•
I/O controller
•
Up to two AC-input or DC-input power supplies
•
Up to two port adapters (blank port adapters should be installed in empty port adapter slots)
•
Up to four cable interface cards (blank cable interface cards should be installed in empty cable
interface card slots)
•
Up to two flash memory cards
An optional clock card can be installed in a Cisco uBR7246VXR.
Note
The following accessories might arrive in separate shipping containers:
•
Rack-mount and cable-management kit—Two rack-mount brackets, one cable-management bracket,
eight M4 x 6-mm Phillips flathead screws, four M4 x 6-mm Phillips panhead screws, and four
10/32 x 3/8-inch slotted binderhead screws
•
AC-input power cables—Up to two AC-input power cables (if AC-input power supply ordered)
All hardware and software documentation is also found on the web at the following URL:
Note
http://www.cisco.com/univercd/cc/td/doc/product/cable/index.htm
•
Documentation, including the following:
– Cisco Documentation CD-ROM
– Installation guides for installed FRU items
– Cisco Information Packet
– Cisco Network Registrar documentation—if ordered
– hardware documentation (the Cisco uBR7200 Series Universal Broadband Router Hardware
Installation Guide)—this publication—if ordered
– Cisco uBR7200 series software documentation (the Cisco uBR7200 Series Universal
Broadband Router Software Configuration Guide)—if ordered
– Cisco IOS software documentation set—if ordered
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3
Installing the Cisco uBR7200 Series Router
This chapter explains how to install and connect a Cisco uBR7200 series universal broadband router and
contains the following sections:
•
Cisco uBR7200 Series Router Installation Checklist, page 3-1
•
Cisco uBR7200 Series Chassis Rack-Mounting Options, page 3-3
•
Installing the Brackets on the Chassis, page 3-7
•
Installing the Chassis in a Workbench or Tabletop Environment, page 3-13
•
Cabling, page 3-14
•
Console and Auxiliary Port Connection Equipment, page 3-16
•
Connecting Power, page 3-20
•
Powering On the Cisco uBR7200 Series Router, page 3-24
Cisco uBR7200 Series Router Installation Checklist
A rack-mount and cable-management kit is included in the shipping container. The rack-mount brackets
in the kit are for mounting the Cisco uBR7200 series in standard, 19-inch-wide, 4-post equipment racks
or telco-type equipment racks. The rack-mount brackets are not suitable for use with other racks, such
as 23-inch telco racks. The cable-management brackets are designed to relieve the strain on port adapter
interface cables that are installed on port adapters in a Cisco uBR7200 series.
If you are installing an equipment shelf or using mounting hardware other than that supplied with the
chassis, review the guidelines in the “Equipment Racks” section on page 2-17, then proceed to the
“Cisco uBR7200 Series Chassis Rack-Mounting Options” section on page 3-3.
If you do not plan to install your Cisco uBR7200 series in an equipment rack, proceed to the “Installing
the Chassis in a Workbench or Tabletop Environment” section on page 3-13.
To assist you with your installation and to provide a historical record of what was done, and by whom,
use the Cisco uBR7200 Series Installation Checklist in Table 3-1 on page 3-2. Make a copy of this
checklist and indicate when each procedure or verification is completed. When the checklist is
completed, place it in your site log (see Appendix H, “Site Log”) along with the other records for your
new router.
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Cisco uBR7200 Series Router Installation Checklist
Table 3-1
Cisco uBR7200 Series Router Installation Checklist
Task
Verified by
Date
Router and all accessories unpacked
Types and numbers of interfaces verified
Verify shipping container contents see “Shipping Container Contents” section on
page 2-11
Router mounted in rack (optional)
Cable-management brackets installed (optional but recommended)
Chassis properly grounded
AC or DC power cables connected to power sources and router; cables secured
Captive installation screws on I/O controller and network processing engine
checked
Network interface cables and devices connected
ASCII terminal attached to console port
Console port set for 9600 baud, 8 data bits, no parity, and 1 stop bit (9600 8N1)
System power turned on (DC OK LED is on)
System boot complete (I/O controller enabled LED is on)
I/O controller, network processing engine, all cable interface cards, all port
adapters, and clock card operational (enabled LEDs on the port adapters and the I/O
controller are on)
System ready for global and interface-specific configuration
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Cisco uBR7200 Series Chassis Rack-Mounting Options
Cisco uBR7200 Series Chassis Rack-Mounting Options
The chassis mounts to two rack posts with brackets that attach to either the front, middle, or rear sides
of the chassis. The inside width between the posts or mounting strips (left and right) must be at least
17.5 inches (44.45 cm).
Some equipment racks provide a power strip along the length of one of the mounting strips. Figure 3-1
shows a typical 4-post equipment rack with a power strip along one of the back posts. If your rack has
this feature, consider the position of the strip when planning fastener points and ensure that you will be
able to pull port adapters and other FRUs straight out of their respective slots.
The inlet and exhaust ports for cooling air are located on the right and left of the chassis, respectively,
so multiple universal broadband routers can be stacked in a rack with little or no vertical clearance.
Note
To illustrate the different methods for rack-mounting the Cisco uBR7200 series router, this section
displays figures specific to the Cisco uBR7246. The setup necessary to rack-mount the
Cisco uBR7223 is the same as for the Cisco uBR7246 and Cisco uBR7246VXR in all cases.
Note
Cisco recommends the rear bracket mounting system for 4-post racks. This method enables you to
keep cables from protruding too far out in front of the Cisco uBR7200 series router and to
simultaneously manage the cables at the front of the chassis with the cable management bracket.
Figure 3-1
Typical 4-Post Equipment Rack Posts and Mounting Strips
Rack posts
Mounting strips
110 VAC
outlets
10327
18.31 in.
(46.48 cm)
hole
center-to-center
17.5 in.
(44.45 cm)
min.
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Cisco uBR7200 Series Chassis Rack-Mounting Options
Mounting options are as follows:
•
If you want the port adapter and cable interface card end (the front) of the chassis recessed in the
rack, install the rack-mount brackets at the rear of the chassis in the orientation shown in Figure 3-2.
•
If you want the front of the chassis mounted flush with the front posts of the rack, install the
rack-mount brackets at the front of the chassis in the orientation shown in Figure 3-3 on page 3-4.
•
If you want the front of the chassis protruding out of the rack, install the rack-mount brackets at the
front of the chassis in the orientation shown in Figure 3-4 on page 3-5.
•
If you want the chassis in a telco-type rack, install the rack-mount brackets in the middle of the
chassis in the orientation shown in Figure 3-5 on page 3-5.
Installing the Chassis in a 4-Post Rack—Rear Installation
Rack-mount
bracket
72798
Figure 3-2
See the “Installing Rack-Mount Brackets on the Rear of the Chassis” section on page 3-7.
Installing the Chassis in a 4-Post Rack–Flush-Mounted Front Installation
72799
Figure 3-3
Rack-mount bracket
See the “Installing Rack-Mount Brackets on the Front of the Chassis” section on page 3-8 for bracket
mounting information.
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Cisco uBR7200 Series Chassis Rack-Mounting Options
Installing the Chassis in a 4-Post Rack–Chassis Protruding Front Installation
72800
Figure 3-4
Rack-mount bracket
See the “Installing Rack-Mount Brackets in the Middle of the Chassis” section on page 3-10 for bracket
mounting information.
Installing the Chassis in a Telco-Type Rack
Rack-mount
bracket
72797
Figure 3-5
Cable-Management Bracket Requirements
There are two cable-management bracket configurations available for rack-mounting the
Cisco uBR7200 series router. In the first configuration, for a 4-post rack, the rack-mount brackets are
installed at the rear of the chassis and the cable-management bracket is installed at the right front of the
chassis. (See Figure 3-6 on page 3-6.) You must install both sets of brackets before you install the chassis
in the rack.
Note
If you rack-mount a Cisco uBR7200 series from the front, you cannot install a cable-management
bracket.
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Cisco uBR7200 Series Chassis Rack-Mounting Options
In the second configuration, for a telco-type rack, the rack-mount brackets are installed at the middle of
the chassis and the cable-management bracket is installed at the right front of the chassis. (See
Figure 3-7 on page 3-6.) You must install both sets of brackets before you install the chassis in the rack.
Note
The cable-management bracket must be installed on the right side of the chassis when viewed from
the front.
Installing the Chassis in a 4-Post Rack with an Installed Cable-Management Bracket
72801
Figure 3-6
Rack-mount
bracket
Cable-management
bracket
Installing the Chassis in a Telco-Type Rack with an Installed Cable-Management Bracket
Cable
management
bracket
Rack-mount
bracket
72810
Figure 3-7
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Installing the Brackets on the Chassis
Installing the Brackets on the Chassis
This section explains how to install the rack-mount brackets and cable-management bracket on a
Cisco uBR7200 series router. Before installing the chassis in the rack, you must install a rack-mount
bracket on each side of the front, middle, or rear of the chassis. If you are rack-mounting the chassis from
the front, you cannot use the cable-management bracket.
If you are rack-mounting the chassis from the rear or middle of the chassis, you can install the
rack-mount brackets and cable-management bracket separately; however, both rack-mount brackets and
the single cable-management bracket must be installed on the chassis before the chassis is installed in
the rack.
The parts and tools required for installing the rack-mount and cable-management brackets are listed in
the “Installation Tools” section on page 2-9.
Note
The Cisco uBR7246VXR is used to illustrate the different methods for installing brackets on the
Cisco uBR7200 series router. The setup required to install brackets on the Cisco uBR7223 is the for
the Cisco uBR7246 and the Cisco uBR7246VXR, with the exception that shorter brackets are used
and only two screws are necessary to affix the bracket to the Cisco uBR7223 chassis.
Installing Rack-Mount Brackets on the Rear of the Chassis
To install the rack-mount brackets and cable-management bracket on the chassis for a rear rack-mount
configuration, complete the following steps:
Step 1
Locate the threaded holes in the rear sides of the chassis.
Step 2
Align the first rack-mount bracket to the threaded holes in the right side of the chassis. See Figure 3-8.
Installing the Rack-Mount Brackets on the Rear of the Chassis
10033
Figure 3-8
Rack-mount
bracket
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Installing the Brackets on the Chassis
Note
There are eight holes in each of the rack-mount brackets for the Cisco uBR7246VXR and
Cisco uBR7246. You may use either set of four holes to align the bracket to the threaded holes in the
sides of the chassis. There are only two holes in each of the rack-mount brackets for the
Cisco uBR7223.
Step 3
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
flathead screws through the rack-mount bracket and into the side of the chassis. Use a number 2 Phillips
screwdriver to tighten the screws.
Step 4
Repeat Step 1 through Step 3 for the other rack-mount bracket.
Step 5
If you plan to include the cable-management bracket in your rear rack-mount configuration, align the
bracket with the two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) right front
side holes.
Note
Step 6
The cable-management bracket must be installed on the right side of the chassis when viewed from
the front.
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
panhead screws through the cable-management bracket and into the chassis, and tighten the screws.
This completes the procedure for installing the rack-mount brackets and the cable-management bracket
on the chassis for a rear rack-mount configuration. Proceed to the “Installing the Chassis in the Rack”
section on page 3-11.
Caution
To prevent injury, review the safety precautions in Chapter 2, “Preparing the Cisco uBR7200 Series
Router for Installation,” before installing the universal broadband router in a rack.
Installing Rack-Mount Brackets on the Front of the Chassis
To install the rack-mount brackets on the chassis for a front rack-mount configuration, complete the
following steps.
Note
If you plan to use the cable-management bracket in your rack-mount configuration, you must install
your rack-mount brackets on the rear of the chassis. Proceed to the “Installing Rack-Mount Brackets
on the Rear of the Chassis” section on page 3-7.
Step 1
Locate the threaded holes in the front sides of the chassis.
Step 2
If you want the front of the chassis flush with the front of the rack, align the first rack-mount bracket to
the threaded holes in the right side of the chassis as shown in Figure 3-9 on page 3-9.
If you want the front of the chassis protruding from the rack, align the first rack-mount bracket to the
threaded holes in the right side of the chassis as shown in Figure 3-10 on page 3-9.
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Installing the Brackets on the Chassis
Note
There are eight holes in each of the rack-mount brackets for the Cisco uBR7246VXR and
Cisco uBR7246. You may use either set of four holes to align the bracket to the threaded holes in the
sides of the chassis. There are only two holes in each of the rack-mount brackets for the
Cisco uBR7223.
Installing the Rack-Mount Brackets so the Front of the Chassis Is Flush with the Rack
10034
Figure 3-9
Rack-mount bracket
10035
Figure 3-10 Installing the Rack-Mount Brackets so the Front of the Chassis Protrudes Out of the Rack
Rack-mount bracket
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Installing the Brackets on the Chassis
Step 3
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
flathead screws through the bracket and into the side of the chassis. Use a number 2 Phillips screwdriver
to tighten the screws.
Step 4
Repeat Step 1 through Step 3 for the other rack-mount bracket.
This completes the procedure for installing the rack-mount brackets on the chassis for a front rack-mount
configuration. Proceed to the “Installing the Chassis in the Rack” section on page 3-11.
Caution
To prevent injury, review the safety precautions in Chapter 2, “Preparing the Cisco uBR7200 Series
Router for Installation,” before installing the universal broadband router in a rack.
Installing Rack-Mount Brackets in the Middle of the Chassis
To install the rack-mount brackets and cable-management bracket at the middle of the chassis for a
telco-type rack-mount configuration, complete the following steps:
Step 1
Locate the threaded holes in the middle sides of the chassis.
Step 2
Align the first rack-mount bracket to the threaded holes in the right side of the chassis. Figure 3-11.
Note
There are eight holes in each of the rack-mount brackets for the Cisco uBR7246VXR and
Cisco uBR7246. You may use either set of four holes to align the bracket to the threaded holes in the
sides of the chassis. There are only two holes in each of the rack-mount brackets for the
Cisco uBR7223.
10036
Figure 3-11 Installing the Rack-Mount Brackets in the Middle of the Chassis for Telco-Type Racks
Rack-mount bracket
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Installing the Brackets on the Chassis
Step 3
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
flathead screws through the rack-mount bracket and into the side of the chassis. Use a number 2 Phillips
screwdriver to tighten the screws.
Step 4
Repeat Step 1 through Step 3 for the other rack-mount bracket.
Step 5
If you plan to include the cable-management bracket in your telco-type rack-mount configuration, align
the bracket with the two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) right front
side holes.
Note
Step 6
The cable-management bracket must be installed on the right side of the chassis when viewed from
the front.
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
panhead screws through the cable-management bracket and into the chassis, and tighten the screws.
This completes the procedure for installing the rack-mount brackets and cable-management bracket on
the Cisco uBR7200 series router. Proceed to the following section, “Installing the Chassis in the Rack.”
Caution
To prevent injury, review the safety precautions in Chapter 2, “Preparing the Cisco uBR7200 Series
Router for Installation,” before installing the universal broadband router in a rack.
Installing the Chassis in the Rack
After installing the brackets on the chassis, mount the chassis by securing the rack-mount brackets to the
posts or mounting strips in the rack using the slotted screws provided.
Caution
Because the brackets support the weight of the entire chassis, be sure to use all of the required slotted
screws to fasten the two rack-mount brackets to the rack posts. Figure 3-2 on page 3-4, Figure 3-3 on
page 3-4, Figure 3-4 on page 3-5, and Figure 3-5 on page 3-5 show typical installations in 19-inch
4-post and telco-type equipment racks.
Cisco recommends that you allow at least 2 inches (5.15 cm) of vertical clearance between the universal
broadband router and any equipment directly above and below it.
Warning
Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift
with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.
To prevent damage to the chassis and components, never attempt to lift the chassis with the
handles on the power supplies or on the interface processors, or by the plastic panels on the front
of the chassis. These handles were not designed to support the weight of the chassis.
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Installing the Brackets on the Chassis
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to
ensure your safety:
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with
the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
To install the chassis in the rack:
Step 1
On the chassis, ensure that all captive screws on the network processing engine, the I/O controller, each
cable interface card, and each power supply are tightened and the port adapter retention clip is in the
locked position.
Step 2
Make sure that your path to the rack is unobstructed. If the rack is on wheels, ensure that the brakes are
engaged or that the rack is otherwise stabilized.
Tip
Two people should perform Step 3 through Step 6.
Step 3
Position the chassis so that the front end is closest to you; then lift the chassis and move it to the rack.
To prevent injury, avoid sudden twists or moves.
Step 4
Slide the chassis into the rack, pushing it back until the brackets (installed at the front or rear of the
chassis) meet the mounting strips or posts on both sides of the equipment rack.
Tip
The rack-mount bracket must be placed behind the rack post or mounting strip in the rear installation
configuration. (See Figure 3-2 on page 3-4.)
Step 5
While keeping the brackets flush against the posts or mounting strips, position the Cisco uBR7200 series
so that the holes in the brackets are aligned with those in the mounting strips.
Step 6
Insert the 10/32 x 3/8 slotted screws (two to a side) through the brackets and into the mounting strip (use
the top and bottom bracket holes, shown in Figure 3-2 on page 3-4, Figure 3-3 on page 3-4, Figure 3-4
on page 3-5, and Figure 3-5 on page 3-5). Using a 7/16-inch, flat-blade screwdriver, tighten all the
screws.
This completes the procedure for installing the chassis in the rack. Proceed to the “Connecting Port
Adapter Cables” section on page 3-14 to continue the installation.
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Installing the Chassis in a Workbench or Tabletop Environment
Installing the Chassis in a Workbench or Tabletop Environment
The Cisco uBR7200 series router should already be in the area where you will install it, and your
installation location should already be determined. If not, refer to the “Site Requirements” section on
page 2-5.
When installing the router on a workbench or tabletop, ensure that the surface is clean and in a safe
location and that you have considered the following:
Warning
•
The Cisco uBR7200 series router requires at least 3 inches (7.72 cm) of clearance at the inlet and
exhaust vents (the right and left sides of the universal broadband router).
•
The Cisco uBR7200 series router should be installed off the floor. (Dust that accumulates on the
floor can be drawn into the interior of the router by the cooling fans. Excessive dust inside the
universal broadband router can cause overtemperature conditions and component failures.)
•
There must be approximately 23.25 inches (59.06 cm) of clearance at the front, and 19 inches
(48.3 cm) at the back of the Cisco uBR7200 series router for installing and replacing
field-replaceable units (FRUs), or accessing network cables or equipment.
•
Blank port adapter, cable interface card, clock card (Cisco uBR7246VXR only), and power supply
panels (Cisco uBR7246VXR and Cisco uBR7246 only) are installed.
•
The Cisco uBR7200 series router will receive adequate ventilation (it is being installed in an
enclosed cabinet where ventilation is adequate).
•
If you plan to install the cable-management bracket on the front of the chassis, you have unpacked
and set aside the cable-management bracket and the two (Cisco uBR7223) or four
(Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips panhead screws.
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily
injury and equipment damage.
Complete the following steps to install the Cisco uBR7200 series router on a workbench or tabletop:
Step 1
Remove any debris and dust from the tabletop or workbench, and the surrounding area. Also make sure
that your path between the router and its new location is unobstructed.
Step 2
On the chassis, ensure that all captive screws on the network processing engine, the I/O controller, cable
interface cards, the clock card, and each power supply are tightened and the port adapter retention clip
is in the locked position.
Warning
Two people are required to lift the chassis. To prevent injury, keep your back straight and lift with
your legs, not your back.
Step 3
Place the Cisco uBR7200 series router on the tabletop or workbench.
Step 4
Ensure that there is the appropriate amount of space around the router.
If you want to install a cable-management bracket on the Cisco uBR7200 series router, proceed to the
following section, “Installing the Cable-Management Bracket on a Cisco uBR7200 Series Router in a
Workbench or Tabletop Environment.” Otherwise, proceed to the “Connecting Port Adapter Cables”
section on page 3-14.
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Installing the Cisco uBR7200 Series Router
Cabling
Installing the Cable-Management Bracket on a Cisco uBR7200 Series Router in
a Workbench or Tabletop Environment
To install the cable-management bracket on a Cisco uBR7200 series router installed on a workbench or
tabletop, complete the following steps:
Step 1
Locate the threaded holes in the right front side of the chassis.
Step 2
Align the cable-management bracket with the two (Cisco uBR7223) or four (Cisco uBR7246VXR and
Cisco uBR7246) right front threaded holes in the chassis. (See Figure 3-7 on page 3-6.)
Note
Step 3
The cable-management bracket must be installed on the right side of the chassis when viewed from
the front.
Thread two (Cisco uBR7223) or four (Cisco uBR7246VXR and Cisco uBR7246) M4 x 6-mm Phillips
flathead screws through the bracket and into the chassis. Use a number 2 Phillips screwdriver to tighten
the screws.
This completes the steps for installing the cable-management bracket on the Cisco uBR7200 series.
Proceed to the following section, “Connecting Port Adapter Cables” section on page 3-14, to continue
the installation.
Cabling
This section provides information on connecting port adapter, clock card (Cisco uBR7246VXR only),
cable interface card, and I/O controller cables to your Cisco uBR7200 series router.
Connecting Port Adapter Cables
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports
contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when
connecting cables.
The instructions for connecting the cables for each port adapter installed in the Cisco uBR7200 series
router are contained in the respective installation document for each port adapter. For example, if you
are connecting the cables for a HSSI port adapter, refer to PA-H HSSI Port Adapter Installation and
Configuration at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
The document is also available on the Documentation CD-ROM and on Cisco.com.
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Cabling
Connecting Cisco Cable Clock Card Cables (Cisco uBR7246VXR only)
The instructions for connecting the cables for the Cisco cable clock card installed in the
Cisco uBR7246VXR are contained in the clock card installation document.
Refer to Cisco Cable Clock Card Hardware Installation at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
The document is also available on the Documentation CD-ROM and on Cisco.com.
Connecting Cable Interface Card Cables
The instructions for connecting the cables for each cable interface card installed in the Cisco uBR7200
series router are contained in the cable interface card installation document. Refer to Cisco uBR7200
Cable Series Interface Line Card Hardware Installation at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
The document is also available on the Documentation CD-ROM and at Cisco.com.
Connecting I/O Controller Cables
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports
contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when
connecting cables.
The console and auxiliary ports for the Cisco uBR7200 series router are located on the I/O controller.
The I/O controller also has an optional Fast Ethernet port with a media-independent interface (MII)
receptacle and an RJ-45 receptacle. (See Figure 3-12 and Figure 3-13 on page 3-16.) This section
contains connection equipment and pinout information for the console, auxiliary, and Fast Ethernet ports
on the I/O controller.
Figure 3-12 Cisco uBR7223 I/O Controller Connections
uBR - MCI6
5
uBR - MCI6
16174
D
S
5
D
S
4
U
S
4
U
S
3
U
S
3
U
S
2
U
S
2
U
S
1
U
S
1
U
S
0
Console port
U
S
0
Auxiliary port
U
S
U
S
U
S
EN
AB
LE
D
EN
AB
LE
D
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
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Console and Auxiliary Port Connection Equipment
Figure 3-13 Cisco uBR7246VXR and Cisco uBR7246 I/O Controller Connections
5
uBR - MCI6
5
uBR - MCI6
5
uBR - MCI6
5
uBR - MCI6
D
S
4
U
S
3
U
S
2
U
S
1
U
S
U
S
D
LE
AB
0
Auxiliary port
Console port
D
S
2
U
S
1
U
S
U
S
D
LE
AB
0
D
S
2
U
S
1
U
S
U
S
D
LE
AB
0
Note
H10069
D
S
2
U
S
1
U
S
U
S
D
LE
AB
0
EN
U
S
EN
U
S
EN
U
S
EN
U
S
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
If you have installed an I/O controller that has an optional Fast Ethernet port with the MII receptacle
and RJ-45 receptacle, you can connect only to one of the Fast Ethernet receptacles–not both.
Console and Auxiliary Port Connection Equipment
The I/O controller has two EIA/TIA-232 ports: a data communications equipment (DCE)-mode console
port and a data terminal equipment (DTE)-mode auxiliary port. The console port is a DCE DB-25
receptacle for connecting a data terminal, which you use to configure the interfaces and bring up the
Cisco uBR7200 series router. The auxiliary port is a DTE DB-25 plug for connecting a modem or other
DCE device (such as a channel service unit/data service unit [CSU/DSU] or other router) to the
Cisco uBR7200 series router. (See Figure 3-14 on page 3-17.)
Note
Both the console and auxiliary ports are asynchronous serial ports; any devices connected to these
ports must be capable of asynchronous transmission. (Asynchronous is the most common type of
serial device; for example, most modems are asynchronous devices.)
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Console and Auxiliary Port Connection Equipment
Figure 3-14 Console and Auxiliary Port Connections
ET
ES
II
C
5
FAST ETHERNET INPUT/OUTPUT CONTROLLER
H6539
P
O W
K R
R
J
IN 45
K
1O
L
M
E II
N
R
E J4
N 5
T
0
T
EC
O
EJ
SL
PC
M
C
IA
EN
AB
LE
D
R
J-4
Console
port
PU
R
M
FE
SL
O
T
1
Auxiliary
port
Modem
Console terminal
Before connecting a terminal to the console port, configure the terminal to match the Cisco uBR7200
series router console port as follows:
•
9600 baud
•
8 data bits
•
No parity
•
1 stop bit (9600 8N1)
You need an EIA/TIA-232 DCE console cable to connect the terminal to the console port. After you
establish normal universal broadband router operation, you can disconnect the terminal.
You must supply your own interface cable between the auxiliary port and the equipment you are
connecting. For console and auxiliary port pinouts, refer to the following sections “Console Port
Signals” section on page 3-17 and “Auxiliary Port Signals” section on page 3-18.
Console Port Signals
Both Data Set Ready (DSR) and Data Carrier Detect (DCD) signals are active when the system is
running. The Request To Send (RTS) signal tracks the state of the Clear to Send (CTS) input. The console
port does not support modem control or hardware flow control. Table 3-2 on page 3-18 lists the signals
used on the console port. The console port requires a straight-through EIA/TIA-232 cable.
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Console and Auxiliary Port Connection Equipment
Table 3-2
Console Port Signal
Pin
Signal
Direction
Description
1
GND
–
Ground
2
TxD
<—
Transmit Data
3
RxD
—>
Receive Data
6
DSR
—>
Data Set Ready (always on)
7
GND
–
Ground
8
DCD
—>
Data Carrier Detect (always on)
Auxiliary Port Signals
Table 3-3 lists the signals used on the auxiliary port. The auxiliary port supports hardware flow control
and modem control.
Table 3-3
Auxiliary Port Signals
Pin
Signal
Direction
Description
2
TxD
—>
Transmit Data
3
RxD
<—
Receive Data
4
RTS
—>
Request To Send (used for hardware flow control)
5
CTS
<—
Clear To Send (used for hardware flow control)
6
DSR
<—
Data Set Ready
7
Signal Ground
–
Signal Ground
8
CD
<—
Carrier Detect (used for modem control)
20
DTR
—>
Data Terminal Ready (used for modem control only)
Fast Ethernet MII Connection Equipment
The Fast Ethernet port on the I/O controller has a single MII, 40-pin, D-shell-type connector that is
configurable for 100 megabits per second (Mbps). The MII connector supports IEEE 802.3u interfaces
compliant with the 100BASE-X and 100BASE-T standards. The single MII connection requires an
external transceiver that permits connection to multimode fiber for 100BASE-FX or 100BASE-T
physical media. (See Figure 3-15 on page 3-19.)
Note
This port does not support 10-Mbps Ethernet connectivity, only 100-Mbps Fast Ethernet.
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Console and Auxiliary Port Connection Equipment
Figure 3-15 Fast Ethernet Port Connection
ES
ET
R
PU
FAST ETHERNET INPUT/OUTPUT CONTROLLER
0
II
M N
E
MII connector
5
J4 K
R IN
L
R
W
P
K
1O O
RJ-45 connector
or
To transceiver,
repeater, or DTE
Caution
5
J4
R N
E
H6853
SL
O
T
PC
M
C
IA
EJ
EC
T
EN
AB
LE
D
R
C
J-4
5
FE
SL
O
T
M
II
1
Optional Fast Ethernet port
(MII receptacle and RJ-45 receptacle)
To repeater
or DTE
Make sure that input power to your Cisco uBR7200 series router is turned off and that the router is
completely powered down before connecting an external transceiver to the Fast Ethernet port on the
I/O controller. If you connect an external transceiver to the Fast Ethernet port when the
Cisco uBR7200 series router is powered on, the system resets and you could lose data. The I/O
controller does not support online insertion and removal (OIR).
Depending on the type of media you use between the MII connection and your switch or hub, the network
side of your 100BASE-T transceiver should be appropriately equipped with ST-type connectors (for
optical fiber), BNC connectors, and so forth.
Figure 3-16 shows the pin orientation of the female MII receptacle on the Fast Ethernet port.
The MII receptacle uses two 56 screw-type locks, called jackscrews, to secure the cable or transceiver
to the MII port. MII cables and transceivers have knurled thumbscrews that you fasten to the jackscrews
on the MII connector and tighten with your fingers. Use the jackscrews to secure your MII cable to the
MII receptacle.
Figure 3-16 MII Receptacle
H6538
Pin 1
Jackscrew
Pin 21
Table 3-4 lists the pinouts and signals for the I/O controller MII receptacle.
Table 3-4
MII Connector Pinout
Pin1
In
Out
I/O
Description
14–17
–
Yes
–
Transmit Data (TxD)
12
Yes
–
–
Transmit Clock (Tx_CLK)2
11
–
Yes
–
Transmit Error (Tx_ER)
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Connecting Power
Table 3-4
MII Connector Pinout (continued)
Pin1
In
Out
I/O
Description
13
–
Yes
–
Transmit Enable (Tx_EN)
3
–
Yes
–
MII Data Clock (MDC)
4–7
Yes
–
–
Receive Data (RxD)
9
Yes
–
–
Receive Clock (Rx_CLK)
10
Yes
–
–
Receive Error (Rx_ER)
8
Yes
–
–
Receive Data Valid (Rx_DV)
18
Yes
–
–
Collision (COL)
19
Yes
–
–
Carrier Sense (CRS)
2
–
–
Yes
MII Data Input/Output (MDIO)
22–39
–
–
–
Common (ground)
1, 20, 21, 40
–
–
–
+5.0 volts (V)
1. Any pins not indicated are not used.
2. Tx_CLK and Rx_CLK are provided by the external transceiver.
Connecting Power
Following are the procedures for connecting AC-input and DC-input power to your Cisco uBR7200
series router.
Warning
Care must be given to connecting units to the supply circuit so that wiring is not overloaded.
Warning
Read the installation instructions before you connect the system to its power source.
Warning
Do not touch the power supply when the power cord is connected. For systems with a power
switch, line voltages are present within the power supply even when the power switch is off and
the power cord is connected. For systems without a power switch, line voltages are present within
the power supply when the power cord is connected.
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and
can cause serious burns or weld the metal object to the terminals.
Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground
during normal use.
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Connecting Power
Warning
Never defeat the ground conductor or operate the equipment in the absence of a suitably installed
ground conductor. Contact the appropriate electrical inspection authority or an electrician if you
are uncertain that suitable grounding is available.
Note
Detailed instructions for handling and replacing the Cisco uBR7200 series router power supplies are
contained in the documents Cisco uBR7200 Series 550-Watt AC-Input Power Supply Replacement
Instructions and Cisco uBR7200 Series 550-Watt DC-Input Power Supply Replacement Instructions
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
These documents are also available on the Documentation CD-ROM and on Cisco.com.
If you have an AC-input power supply installed, proceed to the following section, “Connecting to the
AC-Input Power Supply.” If you have a DC-input power supply installed, proceed to the “Connecting to
the DC-Input Power Supply” section on page 3-22.
Connecting to the AC-Input Power Supply
Warning
The device is designed to work with TN power systems.
Step 1
At the rear of the Cisco uBR7200 series router, ensure that the power switch on the power supply is in
the OFF (0) position.
Step 2
Slide the cable-retention clip to the left, away from the AC receptacle, and plug in the power cable.
Step 3
Secure the cable in the power supply AC receptacle by sliding the cable-retention clip to the right until
it fits around the connector. The cable-retention clip provides strain relief for the AC power cable. For
additional AC power cable strain relief, secure the cable to the power supply handle by inserting a nylon
cable tie through the hole in the handle and around the cable.
Figure 3-17 Connecting AC-Input Power
Cable-retention clip
Power
receptacle
Power
switch
Captive
installation
screw
AC power cable
H10073
Handle
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Connecting Power
Step 4
Plug the AC power supply cable into the AC power source.
Step 5
Repeat Step 1 through Step 4 for the second power supply (if present).
This completes the procedure for connecting AC-input power. Proceed to the “Powering On the
Cisco uBR7200 Series Router” section on page 3-24.
Connecting to the DC-Input Power Supply
Warning
Before performing any of the following procedures, ensure that power is removed from the DC
circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services
the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the
circuit breaker in the OFF position.
Warning
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
Warning
This unit is intended for installation in restricted access areas. A restricted access area is where
access can only be gained by service personnel through the use of a special tool, lock and key, or
other means of security, and is controlled by the authority responsible for the location.
Note
The color-coding of the DC-input power supply leads depends on the color-coding of the DC power
source at your site. Typically, green or green/yellow is used for ground, black is used for +48V
(return), and red or white is used for –48V. Make certain that the lead color-coding you choose for
the DC-input power supply matches lead color-coding used at the DC power source.
Step 1
Ensure that the –48V and +48V leads are disconnected from the power source.
Step 2
At the rear of the router, check that the power switch on the power supply is in the OFF (0) position.
Step 3
Connect the two-hole grounding lug on the grounding lead to the M5 grounding receptacles with the two
M5 nuts. Tighten the nuts using an 8-mm wrench or nut driver (or adjustable wrench). (See Figure 3-19
on page 3-23.)
Note
Figure 3-20 on page 3-24 shows the grounding lug connected to the two vertically aligned
M5 grounding receptacles. You may also connect the grounding lug to the two horizontally aligned
M5 receptacles.
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Step 4
Using a wire stripper, strip approximately 0.55 inch (14 mm) from the –48V and +48V leads. (See
Figure 3-18 on page 3-23.)
Figure 3-18 Stripping the DC-Input Leads
H8624
0.55 in.
(14 mm)
Step 5
Tip
Step 6
Warning
Insert the stripped end of the +48V lead all the way into the +48V lead receptacle and tighten the
receptacle screw using a 3/16-inch flat-blade screwdriver. Repeat for the –48V lead.
Make sure that the entire stripped end of each lead is inserted all the way into its receptacle. If any
exposed wire at the stripped end of a lead is visible after inserting the lead into its receptacle, remove
the lead from the receptacle, use the wire stripper to cut the stripped end of the lead, and repeat
Step 4 through Step 5.
After tightening the receptacle screws and nuts for the ground, +48V, and –48V DC-input leads, run the
+48V and –48V leads between the two strain-relief studs on the power supply faceplate. (See
Figure 3-20 on page 3-24.)
The illustration shows the DC power supply terminal block.Wire the DC power supply using the
appropriate wire terminations at the wiring end, as illustrated. The proper wiring sequence is
ground to ground, positive to positive (line to L), and negative to negative (neutral to N). Note that
the ground wire should always be connected first and disconnected last.
Figure 3-19 Connecting DC-Input Power
Power
switch
Power
receptacle
Handle
12108
Captive
installation
screw
M5 grounding
receptacles
DC power
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Step 7
Install the strain-relief cover over the +48V and –48V leads and secure the cover to the strain-relief studs
using the two M4 nuts with a 7-mm wrench or nut driver (or adjustable wrench). (See Figure 3-20 on
page 3-24.)
Figure 3-20 Replacing the Strain-Relief Cover on a DC-Input Power Supply
Power
receptacle
Power
switch
Captive installation screw
(on both sides of power supply)
Strain-relief
cover
12523
M5 grounding receptacles
M5 grounding lug
– 48V lead
+ 48V lead
Step 8
Note
M4 nuts
Connect the ground, +48V, and –48V leads to the power source.
Each DC-input power supply has an electrical current rating of 14A, 700 VA. Use a minimum of
12 AWG (4 mm2) wire for the input to each DC-input power supply. The power input must be
protected by a 20A circuit breaker or fuse that is in compliance with your local electric regulations.
This completes the procedure for connecting DC-input power. Proceed to the “Powering On the
Cisco uBR7200 Series Router” section on page 3-24 to start the universal broadband router.
Powering On the Cisco uBR7200 Series Router
After installing your Cisco uBR7200 series router and connecting cables, power on the universal
broadband router as follows:
Step 1
Check for the following:
•
Each port adapter is inserted in its slot and the port adapter lever or retention clip is in the locked
position.
•
The Cisco cable clock card (Cisco uBR7246VXR only) is inserted in its slot and its captive
installation screws are tightened.
•
Each cable interface card is inserted in its slot and its captive installation screws are tightened.
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•
Tip
The network processing engine and the I/O controller are inserted in their slots and their captive
installation screws are tightened.
If the port adapters, cable interface cards, network processing engine, or I/O controller are not
properly seated or not fully locked into place, the Cisco uBR7200 series router might enter a
continuous restart loop. Make sure that the boards are seated and locked into position.
•
All network interface cables are connected to the port adapters.
•
Primary and secondary DB-15 T1 interface cables are attached to the clock card
(Cisco uBR7246VXR only).
•
Hybrid fiber-coaxial (HFC) network coaxial cable is connected to the cable interface cards.
•
A Flash memory card is installed in its Personal Computer Memory Card International Association
(PCMCIA) slot.
•
Each AC-input power cable is connected and secured with the cable-retention clip.
•
Each DC-input lead is connected and the +48 and –48 DC leads are secured underneath the
strain-relief cover on the power supply faceplate.
•
Each DC lead is connected and secured to the power source.
•
For installed DC-input power supplies, ensure the tape (that you applied earlier) is removed from
the circuit breaker switch handle, and power is restored by moving the circuit breaker handle to the
ON position.
•
The console terminal is turned on.
Step 2
At the rear of the Cisco uBR7200 series router, place the power switch on the power supply in the on (|)
position. Repeat this step if a second power supply is installed. The green OK LED on the power supply
comes on.
Step 3
Listen for the fans; you should immediately hear them operating. In a very noisy environment, also look
for air movement around the chassis to verify that the fans are operating. If the Cisco uBR7200 series
router was recently switched off, it might take up to 90 seconds for the power supply to restart and the
fans to start operating.
Note
To facilitate headend installation, a Cisco uBR7200 series router equipped with at least one
cable interface card generates a downstream IF carrier when it starts running.
The downstream IF carrier will be present if a cable interface card is properly installed and passes
diagnostics, the router has been powered on for more than two minutes, the IF downstream shutdown
command (no cable downstream if-output) has not been configured, or the Cisco uBR7200 series
router is not in ROMMON mode.
The amplitude and shape of the downstream IF carrier will not change after the Cisco uBR7200 series
router is configured, unless a non-DOCSIS data rate is configured.
Step 4
During the boot process, observe the system LEDs. The LEDs on most of the port adapters go on and off
in an irregular sequence. Some may go on, go out, and go on again for a short time. On the I/O controller,
the IO power OK LED goes on immediately.
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Step 5
Observe the initialization process. When the system boot is complete (a few seconds), the network
processing engine begins to initialize the port adapter, cable interface cards, and the I/O controller.
During this initialization, the LEDs on each port adapter behave differently (most flash on and off). The
enabled LED on each port adapter and cable interface card goes on when initialization is complete, and
the console screen displays a script and system banner similar to the following:
Cisco Internetwork Operating System Software
IOS (tm) uBR7200 Software (uBR7200-I-M), Version 12.0(5)T [smith 100]
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 12-Jul-99 04:10 by smith
Configuring the Interfaces
When you start up the Cisco uBR7200 series router for the first time, the system automatically enters
the setup command facility (also called the system configuration dialog), which determines which port
adapters and cable interface cards are installed. The setup facility prompts you for configuration
information.
On the console terminal, after the system displays the system banner and hardware configuration, the
following System Configuration Dialog prompt appears:
--- System Configuration Dialog --At any point you may enter a questions mark ‘?’ for help.
Use ctrl-c to abort configuration dialof at any prompt.
Default settings are in square brackets ‘[]’.
continue with configuration dialog? [yes]:
You can proceed with the setup facility or exit from the setup facility, using the command interface to
configure global (system-wide) and interface-specific parameters.
Caution
The setup facility currently excludes cable-specific configuration commands. Upstream ports,
therefore, have a default state of “shutdown” after the setup facility is run. You must configure
upstream parameters. For additional information, refer to the Cisco uBR7200 Series Software
Configuration Guide at the following URL
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
You do not have to configure the interfaces immediately; however, you cannot enable the interfaces or
connect them to any networks until you have configured them.
Many of the port adapter LEDs do not come on until you have configured the interfaces. To verify correct
operation of each interface, complete the first-time startup procedures and configuration, then refer to
the document for each port adapter for LED descriptions and to check the status of the interfaces.
Your Cisco uBR7200 series chassis installation is complete. To set up your cable network headend,
proceed to Chapter 4, “Connecting the Cisco uBR7200 Series Router to the Cable Headend.” To begin
configuring your Cisco uBR7200 series, see Cisco uBR7200 Series Software Configuration Guide at the
following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
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4
Connecting the Cisco uBR7200 Series Router to
the Cable Headend
This chapter describes how to connect the Cisco uBR7200 series universal broadband router to a cable
headend and contains the following sections:
Note
•
Two-Way Data Headend Architecture, page 4-2
•
One-Way Data Headend Architecture, page 4-3
•
RF and Digital Data Overview, page 4-3
•
Connecting and Configuring the Downstream, page 4-4
•
Measuring the Downstream RF Signal, page 4-17
•
Connecting and Configuring the Upstream, page 4-31
•
Measuring the Upstream RF Signal, page 4-35
•
Measuring the RF Signal at the Forward Test Point on a Laser Transmitter, page 4-50
•
Configuring the Digital Signal, page 4-54
Before installing your Cisco uBR7200 series router, analyze the radio frequency (RF) setup at your
headend and configure the analog RF signals for interaction with digital data. This chapter guides
you through the process of configuring the RF and digital data at the headend for optimal
performance.
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Two-Way Data Headend Architecture
Two-Way Data Headend Architecture
Figure 4-1 shows a typical headend configuration configured for two-way data, including digitized voice
and fax.
Figure 4-1
Typical Cable Headend Configuration for Two-Way Data
Cisco uBR7200
series router
Upconverter
Downstream
Upstream
0 dBmV
2-way
splitter
X
Broadcast
0 to 20 dB
attenuator
(as required)
8-way
tap
+17 dBmV
video carrier
(typical)
3 dB
attenuator
Node 2
3-way
splitter
+7 dBmV
data carrier
(typical)
Diplex filter
40 dB
attenuator
L H
Node 1
Optical
splitter
Narrowcast
Optical
Reverse optical
receiver Fiber-optic transmitter
+13 dBmV
+17 dBmV
cable
+10 dBmV
6 dB
attenuator
Laser
transmitter
Main
headend feed
Downstream
(0 to +5 dBmV)
Downstream
forward
test point
+31 dBmV
Distribution
network
+48 dBmV
Modem
transmit Cable
levels modems
C
Cable
modem
Reverse optical
Optical
receiver Fiber-optic transmitter
+18 dBmV
+17 dBmV
cable
+10 dBmV
2-way
splitter
6 dB
attenuator
X
8 dB
attenuator
Diplex filter
40 dB
attenuator
L H
Downstream
(0 to +5 dBmV)
+58 dBmV
Distribution
+42 dBmV
network
Modem
transmit
levels
C
Cable
modem
+10 dBmV
2-way
splitter
6 dB
attenuator
X
21 dB
attenuator
Reverse optical
Optical
receiver Fiber-optic transmitter
+31 dBmV
+17 dBmV
cable
Diplex filter
40 dB
attenuator
L H
Downstream
(0 to +5 dBmV)
+50 dBmV
Distribution +42 dBmV
network
+49 dBmV
Modem
transmit
levels
Cable
modem
15429
C
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One-Way Data Headend Architecture
One-Way Data Headend Architecture
Figure 4-2 shows a typical headend configuration configured for one-way (downstream) data in a telco
return cable system.
Figure 4-2
Typical Cable Headend Configuration for One-Way (Telco Return) Data
Cisco uBR7200
series router
DHCP
TFTP
TOD
servers
Upconverter
Downstream
Laser
transmitter
Main
headend feed
Broadcast
0 to 20 dB
attenuator
(as required)
8-way
tap
Optical
splitter
Node 2
Narrowcast
3-way
splitter
IP network access
RADIUS dial
security server
Node 1
+17 dBmV
video carrier
(typical)
+7 dBmV
data carrier
(typical)
Downstream
forward
test point
Telco return
cable modems
Cisco network
access server
PSTN
27806
Upstream
RF and Digital Data Overview
This section describes the interaction of digital and analog RF data as both signals are carried on the
hybrid fiber-coax (HFC) network.
Two-way digital data signals are more susceptible than one-way signals to stresses in the condition of
the HFC network. Degradation in video signal quality might not be noticed, but when two-way digital
signals share the network with video signals, digital signals might be hampered by the following types
of network impairments:
Note
•
Impulse and electrical noise—Impulse and electrical noise, usually forms of ingress, can enter the
network from sources within a home, such as hair dryers, light switches, and thermostats; or from
high-voltage lines that run near CATV cabling in the network. Areas of signal ingress may be located
and repaired by implementing a comprehensive signal leakage maintenance program.
•
Amplifier thermal noise—Amplifiers add noise to the HFC network that usually goes unnoticed in
video signals, assuming a properly designed and operated network. Improperly configured
amplifiers will degrade digital data signals. The larger the network, the higher the probability of
amplifier thermal noise affecting the signals.
•
Ingress noise—Ingress noise includes electrical sources (see “Impulse and electrical noise” above);
amateur radio transmissions; citizens band radios; or high-power shortwave broadcast signals,
which can interfere with frequencies anywhere between 3 and 65 MHz. These often are picked up
by cabling and equipment in the network.
Some HFC upstream equipment passes interfering signals below 5-MHz, which may overload the
reverse path.
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•
Noise funneling—The upstream data path to the headend is susceptible to picking up noise and
interference from anywhere in the network, and all upstream noise ultimately ends up at the
headend. This effect is known as noise funneling because of the cumulative nature of the noise from
one or more locations in the network that becomes concentrated at the headend. As a network
serviced by a single upstream receiver increases in size, the probability of noise funneling also
increases.
•
Variable transmit levels—Signal loss over coaxial cable is affected by temperature. This can cause
variations of 6 to 10 dB per year.
•
Clipping—The lasers in fiber-optic transmitters can stop transmitting light (clipping) when input
levels are excessive. Excessive input levels may cause bit errors and reduced data throughput in both
the upstream and downstream transmissions. If a laser is overdriven as briefly as a fraction of a
second, clipping can occur.
Connecting and Configuring the Downstream
After you install the Cisco uBR7200 series universal broadband router in your headend site, you must
connect the Cisco uBR7200 series to the HFC network and configure the network. The following
sections describe how to connect to and configure the downstream.
Installing and Configuring the Upconverter
If you have not already done so, unpack the IF-to-RF upconverter at your headend site and install it near
your Cisco uBR7200 series universal broadband router.
Note
Caution
Note
Refer to the user documentation that accompanied your upconverter for safety information and
specific installation instructions.
If you do not properly configure the upconverter, you might see decreased system performance,
increased packet loss, and a reduction in carrier-to-noise ratios.
You might need to add attenuation to the downstream path between the Cisco uBR7200 series cable
interface card and the upconverter. Cisco cable interface cards produce an IF output level of either
+32 dBmV (+/–2 dB), +40 dBmV (+/–2 dB), or +42 dBmV (+/–2 dB) depending upon which
version of cable interface card you have installed. Add enough attenuation to adjust the cable
interface card IF output level to match the IF input level of your upconverter and to compensate for
cable line loss, the cable interface card’s actual measured output power, and upconverter
performance.
For more information refer to the Cisco uBR7200 Series Universal Broadband Router Cable
Interface Line Card Hardware Installation at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/10494hmc.htm
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Setting the North American Upconverter Input Level
You must set the upconverter IF input level, according to the manufacturer’s instructions, to match the
downstream output level of the cable interface cards. Earlier Cisco cable interface card output was
+32 dBmV (+/–2 dB). More recently, however, Cisco cable interface cards feature an output rating of
+42 dBmV (+/–2 dB). Refer to the “Measuring the Downstream RF Signal” section on page 4-17 and be
sure to check the documentation that accompanied your Cisco cable interface card or the faceplate of the
cable interface card itself, to determine its downstream output level.
Depending on the upconverter model selected (see Appendix F, “Manufacturers for Headend
Provisioning Requirements,” for manufacturers and models), you might need to add attenuation between
the cable interface card IF output and upconverter input to achieve the recommended input level to the
upconverter. For example:
•
The recommended IF input to the General Instrument C6U is +23 dBmV; this upconverter requires
6 to 9 dB of attenuation on the input cable.
•
The IF input to the Wavecom MA4040 is +33 dBmV; this upconverter requires no attenuation on the
input cable. (See Figure 4-3.)
To verify the input level, connect a spectrum analyzer to the test point on the upconverter input. If your
upconverter is equipped with a built-in meter, you do not need to connect a spectrum analyzer. The IF
input level at the test point should be 0 dBmV at 44 MHz.
Figure 4-3
Setting the North American Upconverter Input Level
Cisco uBR7200
series
6 dB to 9 dB attenuator
for GI upconverter
Upconverter
IF input
Tip
RF output
Spectrum analyzer
or meter at test point
should equal 0 dBmV
14041
Downstream output
44 MHz IF
+32 dBmV ( +- 2 dB)
•
To adjust the General Instrument (GI) C6U to the correct level at the test point, use the Manual
IF Gain Control (MIGC) on the C6U to adjust the level until the output at the test point reads
0 dBmV at 44 MHz on a spectrum analyzer, when +23 dBmV is present at the upconverter IF
input.
•
The test point on the GI upconverter has a +/-2 dB accuracy specification.
•
To adjust the Wavecom MA4040 to the correct level at the test point, set the
Automatic Gain Control (AGC) to auto. The Wavecom MA4040 has a built-in meter
to verify this setting.
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Setting the European Upconverter Input Level
You must set the upconverter IF input level, according to the manufacturer’s instructions, to match the
downstream output level of your Cisco MC16E cable interface card. The Cisco MC16E features an
output rating of +40 dBmV (+/–2 dB). Refer to the “Measuring the Downstream RF Signal” section on
page 4-17 and be sure to check the documentation that accompanied your Cisco cable interface card or
the faceplate of the cable interface card, itself, to determine its downstream output level.
Depending on the upconverter model selected (see Appendix F, “Manufacturers for Headend
Provisioning Requirements,” for manufacturers and models) you might need to add attenuation between
the cable interface card IF output and upconverter input to achieve the recommended input level to the
upconverter.
To verify the input level, connect a spectrum analyzer to the test point on the upconverter input. If your
upconverter is equipped with a built-in meter, you do not need to connect a spectrum analyzer. The IF
input level at the test point should be 0 dBmV at 36.125 MHz.
Figure 4-4
Setting the European Upconverter Input Level
Cisco uBR7200
series routers
Upconverter
IF input
RF output
Spectrum analyzer
or meter at test point
should equal 0 dBmV
29428
Downstream output
36.125 MHz IF
+40 dBmV ( +- 2 dB)
Setting the Upconverter Output Level
You must now set the upconverter output RF level, according to the manufacturer’s instructions.
DOCSIS specifications permit an RF output level of +50 to +61 dBmV. Select an output level that falls
within this range that is valid for your upconverter. For example, the configuration in Figure 4-14 on
page 4-15, shows an output level of +55 dBmV.
Note
Tip
You should set the upconverter output to a level no greater than about +58 dBmV. This provides
headroom for test equipment calibration accuracy and measurement uncertainty, and helps to avoid
compression in the upconverter.
•
The recommended output level of the General Instrument C6U is +53 to +55 dBmV.
•
The recommended output level of the Wavecom MA4040 is +55 to +58 dBmV at 88 to 860 MHz.
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Testing the Upconverter Output Level
If you are using a GI, Barco, or Scientific Atlanta upconverter, you can measure the 0 dBmV test point
at the front of the upconverter. If you are using a Wavecom upconverter, you can measure the 0 dBmV
test point at the back of the upconverter. Your spectrum analyzer should display a signal similar to the
one shown in Figure 4-5.
Note
The digitally modulated carrier’s average power level should be set between 6 and 10 dB less than
the cable network’s video carrier amplitude.
Figure 4-5 shows a sample digital channel power measurement made on an Agilent 8591C spectrum
analyzer at a 44 MHz IF test point (North American headend).
Figure 4-5
Sample Digital Channel Power Measurement at 44 MHz IF Test Point
Setting the Upconverter Output Frequency
You must now select an output frequency. DOCSIS specifications permit channels from 91 to 857 MHz
(center frequency of 91 MHz is not required). In the example shown in Figure 4-14, a center frequency
of 610 MHz is used.
The following excerpts from the DOCSIS Radio Frequency Interface Specification define downstream
digitally modulated carrier frequencies.
•
DOCSIS — “The downstream frequency plan should comply with Harmonic Related Carrier (HRC),
Incremental Related Carrier (IRC), or Standard (STD) North American frequency plans per [IS-6].
However, operation below a center frequency of 91 MHz is not required.”
•
EuroDOCSIS —”The downstream frequency plan will include all center frequencies between 112
and 858 MHz on 250 kHz increments. It is up to the operator to decide which frequencies to use to
meet national and network requirements.”
Your output frequency should be in your narrowcast band of frequencies, or the narrowcast combiner.
Narrowcast frequencies are defined as frequencies that are transmitted to certain groups of fiber nodes
or regions in your network. (See Figure 4-6.) The same programming content is received within each
group of fiber nodes or regions. Different groups receive different content.
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Tip
•
The Wavecom MA4040 displays the channel’s center frequency.
•
The GI C6U displays a frequency that is 1.75 MHz below the channel’s center frequency. This value
is equivalent to the visual carrier frequency for an analog TV channel occupying the same spectrum.
Figure 4-6
Narrowcast Combiner and Output Frequency
1
50 - 595 MHz
Broadcast channels
600 - 700 MHz
Narrowcast channels
2
6
3
5
4
Each segment is
a group of fiber nodes
or a region
Narrowcast channels
600 - 700 MHz
Narrowcast channels
6
3
14043
600 - 700 MHz
Measuring Upconverter Phase Noise Contribution
You may use a spectrum analyzer to measure the relative aggregate phase noise contribution of the
upconverter to the RF output signal originating at your cable headend. By following the steps in this
procedure you can determine whether or not the amount of phase noise in your RF output signal is
potentially detrimental to downstream data transmission. Perform the following steps to measure the
additive phase noise in your RF output signal.
Note
Caution
Most spectrum analyzers are not designed to precisely measure phase noise.
Performing the procedures in this section disconnects any active cable modems currently connected
to your Cisco uBR7200 series router.
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Viewing the Downstream IF Signal
Note
Refer to the user guide that accompanied your spectrum analyzer to determine the exact steps
required to use your analyzer to perform these measurements.
Step 1
Connect a spectrum analyzer to the downstream connector on a Cisco cable interface card installed in a
Cisco uBR7200 series universal broadband router.
Step 2
Turn the power switch on the spectrum analyzer to the ON position.
Step 3
Set the spectrum analyzer to view the downstream intermediate frequency (IF) signal with a center
frequency of 44 MHz for a North American headend or 36.125 MHz for a European headend.
Step 4
Set the resolution bandwidth to 100 kHz, the video bandwidth to 1 MHz, the span to 12 MHz, and the
sweep time to 20 msec. Your analyzer should display a signal similar to the one shown in Figure 4-7.
Figure 4-7
Step 5
Downstream IF Channel Power
Stop downstream digital data transmission from the cable interface card by setting the downstream
symbol rate to 0 on your downstream cable interface. This transmits an unmodulated IF carrier signal
over the downstream. To accomplish this, enter the following Cisco IOS command in interface
configuration mode:
Router(config-if)# cable downstream symbol 0
Your analyzer should display a signal similar to the one shown in Figure 4-8 on page 4-10.
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Figure 4-8
Phase Noise Measurement
Note
Notice that the total channel power (across 6 MHz) does not change between the modulated carrier
and the unmodulated continuous wave (CW) carrier.
Step 6
Zoom in on the CW signal (the center 6 MHz in Figure 4-8) by reducing the span on your spectrum
analyzer from 12 MHz to 6 MHz.
Step 7
Change the resolution bandwidth from 100 kHz to 1 kHz so that the sweep time slows to around
18 seconds. Be sure, however, that you retain the 1-kHz video bandwidth and the same center frequency.
Your analyzer should display a signal similar to the one shown in Figure 4-9.
Figure 4-9
6-MHz Channel Band
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Note
Step 8
Your signal might show additional signals or “spurs” similar to the ones displayed in Figure 4-9.
These are characteristics of the modulator in this mode and do not affect downstream data
transmission.
Narrow your span even further from 6 MHz to 100 kHz to zoom in on the center frequency of the channel
carrier and reduce your resolution bandwidth and video bandwidth to absolute minimum values for your
particular spectrum analyzer. Your analyzer should display a signal similar to the one shown in
Figure 4-10.
Figure 4-10 100-kHz “Zoom” View of Carrier Center Frequency
Step 9
Save this plot on your spectrum analyzer display for comparison with the RF output signal of the
upconverter.
Viewing the RF Output Signal
After you have isolated, displayed, and saved the downstream IF signal on your spectrum analyzer, you
must go through the same sort of procedure for the RF output signal from your upconverter.
Step 1
Disconnect the spectrum analyzer from the downstream IF interface on the cable interface card and
reconnect the downstream IF interface to the IF input on your upconverter.
Note
Be sure that you have added the appropriate attenuation to your downstream path, if necessary. For
more information, refer to the “Setting the North American Upconverter Input Level” section on
page 4-5.
Step 2
Connect the spectrum analyzer to the RF output of the upconverter.
Step 3
Set the center frequency on the spectrum analyzer so that it matches the RF output frequency of your
upconverter. For this example, 555 MHz is the RF output frequency.
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Step 4
Note
Allow the spectrum analyzer to complete at least one complete sweep of the RF output.
Be sure to adjust the reference level of the current measurement so that its peak value is equal to that
of the saved signal.
A second signal appears on the spectrum analyzer’s screen, yielding a display similar to that in
Figure 4-11.
Figure 4-11 Comparison of IF Input Sweep and RF Output Sweep
Step 5
Note
Qualify the 100-kHz phase noise measurement of your upconverter by comparing the shapes of the two
signals. If the signal is substantially higher (with the peak amplitude measurements lined up), your
upconverter might have high-frequency phase noise, and might be incompatible with digitally modulated
signals. Upconverters suffering from excessive gain, power supply difficulties, or design deficiencies can
introduce unacceptable levels of phase noise into your cable headend. If your comparison resembles
Figure 4-11, your upconverter is operating properly.
If you suspect that your upconverter is “drifting over time,” place two additional traces on your
screen, “min-hold” and “max-hold,” while comparing your two signals. Should either trace change
shape, your upconverter has failed. This method can help you discover mechanical tapping or
vibration related problems, which can have an adverse effect on upconverter phase noise.
To be certain of your findings, Cisco recommends that you check your upconverter with a QAM
analyzer capable of displaying constellation phase noise impairments.
Step 6
Attach the spectrum analyzer to the output of your cable interface card and clear the saved trace.
Step 7
Reduce the span on the spectrum analyzer from 100 kHz to 10 kHz and allow the spectrum analyzer to
complete at least one full sweep of the RF output.
Step 8
Save this new trace and return to the RF output of the upconverter (reconnecting the upconverter in the
process). Your analyzer should display a signal similar to the one shown in Figure 4-12.
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Figure 4-12 Increased Frequency Resolution on IF Input Sweep and RF Output Sweep
Note
This step displays an even greater resolution for both the IF input and RF output signals at
your upconverter.
Fine-Tuning the Center Frequencies
The signals in Figure 4-12 feature a very slight frequency error. Continue with the final steps in this
procedure to resolve this frequency error and display the low-frequency additive phase noise at and
below 10 kHz.
Step 1
Note
Step 2
Note
Eliminate the offset between the IF and RF output traces by fine-tuning the RF output center frequency
on the spectrum analyzer. The difference between the center frequencies in these two signals is referred
to as the “frequency error” of the upconverter.
The FCC specifies that the frequency error of an upconverter cannot exceed 5 kHz in the aviation
bands.
Repeat Step 3 and Step 4 under “Viewing the RF Output Signal,” substituting the exact center frequency
for 555 MHz. In our example, the exact center frequency is 544.99970 MHz. Your analyzer should
display a signal similar to the one shown in Figure 4-13.
Your spectrum analyzer must feature frequency counting capability in order for you to be able to
work out the new, adjusted center frequency.
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Figure 4-13 Frequencies Lined Up to Illustrate Additive Phase Noise in RF Output
Step 3
Measure the increase in phase noise (the difference in amplitude between the IF and RF output traces)
at 5 kHz from the center frequency to establish a reliable reading. This value is the phase noise
contribution from your upconverter.
Step 4
Compare the value derived in Step 3 with the minimum specifications for your cable network headend
to get an indication of how well your upconverter is operating.
The spectrum analyzer signals displayed in this procedure are of a high-quality DOCSIS-based
upconverter operating in an “ideal” headend environment. If your particular results reveal significantly
greater levels of phase noise (that is, the skirts of the RF signal are significantly higher than the IF signal
skirts when the peak amplitudes have been lined up), your upconverter might not be suitable for digital
modulation formats.
If possible, double-check your upconverter performance with a specialized analyzer such as a QAM
analyzer or other type of dedicated phase-noise measurement equipment.
Note
Step 5
If you are concerned about possible upconverter drift or intermittency, try viewing three curves on
your spectrum analyzer: IF plot or “real-time” RF plot; “max-hold” RF plot; and “min-hold” RF plot.
If the IF or “real-time” RF plot differs in shape from the “max-hold” or “min-hold” RF plots, your
upconverter has most likely suffered an intermittency error.
Reestablish 64-QAM downstream digital data transmission from the cable interface card by setting the
downstream symbol rate to 5056941 symbols/second on your downstream cable interface. To
accomplish this, enter the following Cisco IOS command in interface configuration mode:
Router(config-if)# cable downstream symbol 5056941
Note
Step 6
The value 5056941 symbols/second is specified by DOCSIS for 64-QAM transmissions in a 6-MHz
downstream channel plan. For 256-QAM transmission, the value is 5360537 symbols/second.
After you determine that your upconverter is suitable for reliable downstream data transmission, proceed
to the following section, “Completing the Downstream Configuration.”
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Completing the Downstream Configuration
To complete the downstream configuration, you must combine the upconverter output with the main
headend broadcast feed into the laser transmitter in the headend. In the example shown in Figure 4-14,
the laser transmitter has two inputs. These inputs are designed for +17 dBmV video carriers. The
narrowcast feed, which includes cable modem service and digital video and local access channels, is
connected to the laser transmitter input using an 8-way tap and a 3-way splitter. (See Figure 4-14.)
Note
In the example, there is an optical splitter on the output of the laser transmitter that allows you to
transmit to two fiber nodes.
The 8-way tap has an insertion loss of 11 dB and the 3-way splitter has an insertion loss of 7 dB; the
combined loss is 18 dB. With this combined insertion loss, you will overdrive the input on the transmitter
and it will not work properly. To compensate for this insertion loss, you must add attenuation to the
digital carrier laser input. The input level for the data carrier is +7 dBmV, or 10 dB below the video
carriers. In this example, start with a 20-dB attenuator to adjust for the insertion loss and passive loss in
the headend cables. (See Figure 4-14.)
Figure 4-14 Complete Downstream Configuration
Cisco uBR7200
series router
610 MHz center frequency
+55 dBmV output level
Upconverter
IF
Upstream
Downstream
IF input
0 dBmV
RF output
Main
headend
feed
Laser
transmitter
Broadcast
RF
0-20 dB
attenuator
(as required)
Diplex filter
40 dB
attenuator
L H
Narrowcast
8-way
tap
3-way
splitter
+17 dBmV
video carrier
(typical)
+7 dBmV
data carrier
(typical)
Node 1
Optical
splitter
Node 2
Downstream
forward
test point
-3 dBmV video carrier
Cable
modem
Tip
14042
C
If you have a very large, complex headend system with many outputs, you might notice a very large
passive loss in your headend combining network. For example, in a headend with 100 feet of
59-series headend coaxial cable (RG-59), you can see losses of 6 to 8 dB. To compensate for this loss,
you can install the upconverter closer to the laser transmitters.
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Testing the Downstream Configuration
To test the downstream configuration, you can connect a cable modem to the downstream forward test
point of the laser transmitter. Use a diplex filter and an attenuator, as needed, to connect the cable modem
to an upstream port on the Cisco uBR7200 series universal broadband router cable interface card.
The nominal input level for a Cisco uBR7200 series router upstream port is 0 dBmV, but it can also be
adjusted as low as –10 dBmV or as high as +25 dBmV using Cisco uBR7200 series software. The router
instructs the modem to adjust its output level to provide the correct cable interface card input level. Your
test cable modem will require a minimum of 8 to 10 dB of attenuation between the upstream of the diplex
filter and the upstream port on the router. In the example in Figure 4-14, a 40-dB attenuator pad is used.
If this configuration is working properly, you have a very good chance of getting the rest of the network
up. If this configuration generates a low carrier-to-noise ratio (C/N) estimate in the cable interface, you
need to make further adjustments.
Note
You can measure the preliminary C/N ratio estimate at the headend downstream laser test point. This
measurement may be used to verify the performance of the upconverter, headend combiner, and
forward distribution system before cable modems are installed on the HFC network. Typically, this
is the only place to test for downstream interference from the forward path. Ensure that your sweep
equipment is not programmed to transmit on the digital carrier. Otherwise, this can cause bit errors
and packet loss, resulting in unreliable cable modem operation.
You can verify the C/N ratio estimate on a Cisco uBR900 series cable access router by following the
directions described in the “About Verifying the Downstream Signal” section on page 5-10.
Tip
The C/N estimate for a Cisco uBR900 series access router installed at the headend should be between
35 and 39 dB.
A maximized C/N estimate optimizes cable modem reliability and service quality.
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Measuring the Downstream RF Signal
The configuration of the downstream digitally modulated carrier at the headend is critical to the
performance of the Cisco uBR7200 series universal broadband router and cable modems. The following
guidelines are provided to assist you in configuring the RF signal to the necessary specifications. There
are two options you can use to measure the RF signal with a spectrum analyzer. These options are
described in the following sections:
•
“Measuring the Downstream RF Signal Using the Channel Power Option on a Spectrum Analyzer”
•
“Measuring the Downstream RF Signal Using CATV Mode on a Spectrum Analyzer” (equipped
with digital channel power mode)
These two sections describe the procedures necessary to use a spectrum analyzer. You may also use a
signal level meter that has the ability to measure the average power level of digitally modulated carriers,
as well as a QAM analyzer. Some instruments to perform these measurements include:
•
Acterna SDA-5000 w/Option 4 (http://www.acterna.com)
•
Agilent 8591C, N1776A, 2010 or 3010 (http://www.tm.agilent.com)
•
Sunrise Telecom AT-2000RQ, CM1000 or CR1200R (http://www.sunrisetelecom.com/broadband)
•
Telsey DMA-120, DMA-121 or DMA122 (http://www.telsey.it)
•
Trilithic 860DSP w/Option QA1 (http://www.trilithic.com)
If you complete these measurements using one of the previously mentioned options, your downstream
signal can be verified as correctly configured and it can assist you with troubleshooting your network
later on.
If you want to measure the downstream RF signal using the spectrum analyzer channel power option,
proceed to the following section, “Measuring the Downstream RF Signal Using the Channel Power
Option on a Spectrum Analyzer.” If you want to measure the downstream RF signal using CATV mode,
proceed to the “Measuring the Downstream RF Signal Using CATV Mode on a Spectrum Analyzer”
section on page 4-24.
Note
An analog TV channel modulator with external IF loops is not suitable for use as a QAM digitally
modulated carrier upconverter. These units typically do not have the phase noise and linearity
performance levels required for 64- and 256-QAM digital signals, and they might cause degraded
performance and possible system failure.
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Measuring the Downstream RF Signal Using the Channel Power Option on a
Spectrum Analyzer
The following sections describe how to measure the downstream RF signal using the channel power
option on a spectrum analyzer:
•
“Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router”
•
“Measuring the Downstream RF Signal at the Upconverter Output”
Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router
Note
Refer to the user guide that accompanied your spectrum analyzer to determine the exact steps
required to use your analyzer to perform these measurements.
Step 1
Connect a spectrum analyzer to the downstream connector on a Cisco cable interface card installed in a
Cisco uBR7200 series router.
Step 2
Turn the power switch on the spectrum analyzer to the ON position.
Step 3
Set the spectrum analyzer to view the downstream intermediate frequency (IF) signal with a center
frequency of 44 MHz for a North American headend or 36.125 MHz for a European headend.
Step 4
Set the span to 10 MHz. Your analyzer should display a signal similar to the one shown in Figure 4-15.
Figure 4-15 Viewing the Downstream IF Signal on a Spectrum Analyzer
Step 5
Measure the IF signal using the channel power option on your spectrum analyzer. Set your channel
spacing and your channel bandwidth to 6 MHz. Your analyzer should display a signal similar to the one
shown in Figure 4-16.
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Figure 4-16 Measuring the IF Channel Power
Note
Step 6
The IF channel power in Figure 4-16 is +34.23 dBmV, as displayed on the spectrum analyzer.
Select the video averaging feature. Your spectrum analyzer should display a signal similar to the one
shown in Figure 4-17.
Figure 4-17 Measuring the IF Channel Power Using Video Averaging
Note
The approximate in-channel peak-to-valley flatness may be verified using the spectrum analyzer’s
video averaging feature. Be aware, however, that amplitude values registered while in the video
averaging mode are typically around 2.5 dB below the actual channel power.
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Measuring the Downstream RF Signal at the Upconverter Output
Step 1
Disconnect the spectrum analyzer from the cable interface card downstream connector.
Step 2
Connect the downstream output of the cable interface card to the upconverter input connector.
Step 3
Connect the spectrum analyzer to the RF output of the upconverter. If your spectrum analyzer input is
overloaded, you might see artifacts that are internally generated by the spectrum analyzer. The artifacts
are circled on the analyzer trace shown in Figure 4-18. Add attenuation as necessary to correct the
overload condition.
Figure 4-18 Overloaded Spectrum Analyzer Input
Step 4
Set the input of the upconverter to a digital QAM signal and the output level to the manufacturer’s
recommended settings. Typical output amplitudes range from +50 to +58 dBmV, although DOCSIS
specifies +61 dBmV.
Step 5
Set the spectrum analyzer to view the RF signal at the center frequency you selected for your headend.
In this example, the RF center frequency is 699 MHz. Set your span to 20 MHz. Finally, set your channel
spacing and your channel bandwidth to 6 MHz.
If the RF signal is causing an overload condition on the spectrum analyzer input, your analyzer might
display a signal similar to the one shown in Figure 4-19. The sloping of the lines at the sides of the signal
indicates a false reading.
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Figure 4-19 Measuring the RF Signal at the Upconverter Output—Overload Condition
Step 6
If you add attenuation to the input to the spectrum analyzer you can correct the overload condition as
shown in Figure 4-20.
Figure 4-20 Measuring the RF Signal at the Upconverter Output—Overload Condition Corrected with
Attenuation
Step 7
Tip
Change the spectrum analyzer settings to view the digital channel power. This setting enables you to see
if there is too much power on the upconverter output. In Figure 4-21, the upconverter output is reading
+64.31 dBmV, which is beyond the DOCSIS-specified range of +50 to +61 dBmV.
A spectrum analyzer might become overloaded and produce false readings (such as internally
generated spurs) when measuring a signal at this amplitude.
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Figure 4-21 Measuring the RF Signal at the Upconverter Output—Upconverter Output Level Too High
Step 8
Adjust the power on the upconverter output to ensure that it is between +50 and +61 dBmV. In
Figure 4-22, the upconverter output is reading +57.06 dBmV, which is within the correct range.
Figure 4-22 Measuring the RF Signal at the Upconverter Output—Output Adjusted to Correct Range
Step 9
Select the video averaging feature on the spectrum analyzer. The signal becomes smoother and
frequency response problems might become visible. Your analyzer now displays an RF signal similar to
the one shown in Figure 4-23.
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Figure 4-23 Measuring the RF Signal at the Upconverter Output Using Video Averaging
Tip
The approximate in-channel peak-to-valley flatness may be verified using the spectrum analyzer’s
video averaging feature. Be aware, however, that values registered while in the video averaging mode
are typically around 2.5 dB below the actual channel power.
Note
Any in-channel frequency response problems at the headend can impair network performance or
prevent a cable modem on the HFC network from operating. The specified maximum peak-to-valley
measurement from a Cisco cable interface card is +/–1.5 dB across 5.6 MHz. At the output of the
upconverter, the maximum tilt should not exceed +/–1.5 dB across 5.6 MHz. If the tilt is greater than
+/–1.5 dB across 5.6 MHz when measured, the upconverter might not be compatible with digital
QAM signals, or the upconverter might be defective. Remember, however, that when using your
spectrum analyzer in “video averaging” mode, amplitude accuracy adjustments must also be taken
into consideration.
Step 10
Verify that your headend RF measurements meet the recommended DOCSIS parameters listed in the
tables in Appendix B, “RF Specifications.” Record your headend settings and measurements in your
headend site log (Appendix H, “Site Log”). This will assist in troubleshooting the
Cisco uBR7200 series router installation later in the process.
This completes the procedure to measure the downstream RF signal using the channel power option.
Proceed to the “Measuring the RF Signal at the Forward Test Point on a Laser Transmitter” section on
page 4-50.
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Measuring the Downstream RF Signal Using CATV Mode on a
Spectrum Analyzer
The following two sections describe the methods you may use to measure the downstream RF signal
using CATV mode (digital channel power option) on a spectrum analyzer:
Note
•
“Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router Using CATV Mode”
•
“Measuring the Downstream RF Signal at the Upconverter Output Using CATV Mode”
Cisco recommends using as recent a model of spectrum analyzer as possible to perform the two
analyses described here. You can use spectrum analyzers, such as the Agilent 8591C
(http://www.tm.agilent.com) or the Tektronix 2715 (http://www.tek.com) to help you perform the tasks
outlined in this section.
Measuring the Downstream IF Signal at the Cisco uBR7200 Series Router Using CATV Mode
Note
Refer to the user guide that accompanied your spectrum analyzer to determine the exact steps
required to use your analyzer to perform these measurements.
Step 1
Connect a spectrum analyzer to the downstream connector on a Cisco cable interface card installed in a
Cisco uBR7200 series router.
Step 2
Turn the power switch on the spectrum analyzer to the ON position.
Step 3
Set the spectrum analyzer to CATV mode (CATV analyzer option) and select the channel measurement
option to view the downstream intermediate frequency (IF) signal. Your analyzer should display a signal
similar to the one shown in Figure 4-24.
Note
Figure 4-24 shows the first of three screens that will be displayed by an Agilent 8591C when you use
the analyzer in this mode. Figure 4-25 is the last of the three screens displayed.
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Figure 4-24 Viewing the Downstream IF Signal on a Spectrum Analyzer in CATV Mode—Initial Screen
Step 4
Advance to the last of the three screens in this display. Your analyzer should display a signal similar to
the one shown in Figure 4-25.
Figure 4-25 Viewing the IF Signal on a Spectrum Analyzer in CATV Mode—Preliminary Digital Channel
Power Screen
Step 5
Enter a digital channel to measure and select digital channel power. Your spectrum analyzer will display
a signal similar to the one shown in Figure 4-26.
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Figure 4-26 Measuring the IF Signal on a Spectrum Analyzer in CATV Mode—Digital Channel Power
Screen
Step 6
Using the spectrum analyzer’s reference level control, adjust the amplitude of the displayed signal until
the shape of the signal is clearly distinguishable as a digitally modulated carrier, as shown in
Figure 4-27.
Figure 4-27 Measuring the IF Signal on a Spectrum Analyzer in CATV Mode—Adjusted Digital Channel
Power Screen
Note
Step 7
The IF channel power in Figure 4-27 is +33 dBmV, as displayed on the spectrum analyzer.
Select the video averaging feature. Your spectrum analyzer should display a signal similar to the one
shown in Figure 4-28.
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Figure 4-28 Measuring the IF Signal on a Spectrum Analyzer in CATV Mode—Digital Channel Power
Screen (Video Averaging)
Note
The approximate in-channel peak-to-valley flatness can be verified using the spectrum analyzer’s
video averaging feature. Be aware, however, that values registered while in the video averaging mode
are typically around 2.5 dB below the actual channel power.
Proceed to the next section, “Measuring the Downstream RF Signal at the Upconverter Output Using
CATV Mode.”
Measuring the Downstream RF Signal at the Upconverter Output Using CATV Mode
Step 1
Disconnect the spectrum analyzer from the cable interface card downstream connector.
Step 2
Connect the downstream output of the cable interface card to the upconverter input connector.
Step 3
Connect the spectrum analyzer to the RF output of the upconverter.
Step 4
Set the upconverter output level to the manufacturer’s recommended settings. Typical output amplitudes
range from +50 to +58 dBmV, although DOCSIS specifies levels as high as +61 dBmV.
Step 5
Set the spectrum analyzer to view the RF signal at the center frequency you selected for your headend.
In this example, the RF center frequency is 705 MHz.
Step 6
Set the spectrum analyzer to CATV mode (CATV analyzer option) and select the channel measurement
option to view the downstream RF signal. Your analyzer should display a signal similar to the one shown
in Figure 4-24.
Note
Figure 4-29 shows the first of three screens that will be displayed by a Agilent 8591C when you use
the analyzer in this mode. Figure 4-30 is the last of the three screens displayed.
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Figure 4-29 Viewing the Downstream RF Signal at the Upconverter Output in CATV Mode—Initial
Screen
Step 7
Advance to the last of the three screens in this display. Your analyzer should display a signal similar to
the one shown in Figure 4-30.
Figure 4-30 Viewing the RF Signal on a Spectrum Analyzer in CATV Mode—Preliminary Digital
Channel Power Screen
Step 8
Enter a digital channel to measure and select digital channel power. Your spectrum analyzer will display
a signal similar to the one shown in Figure 4-31.
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Figure 4-31 Measuring the RF Signal at the Upconverter Output in CATV Mode—Digital Channel
Power Screen
Step 9
Using the spectrum analyzer’s reference level control, adjust the amplitude of the displayed signal until
the signal peak is within the top graticule of the analyzer’s display grid.
Figure 4-32 Measuring the RF Signal at the Upconverter Output in CATV Mode—Adjusted Digital
Channel Power Screen
Step 10
Select the video averaging feature. Your spectrum5
Step 11
analyzer should display a signal similar to the one shown in Figure 4-33.
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Figure 4-33 Measuring the RF Signal at the Upconverter Output in CATV Mode—Digital Channel
Power Screen Using Video Averaging
Note
The approximate in-channel peak-to-valley flatness can be verified using the spectrum analyzer’s
video averaging feature. Be aware, however, that values registered while in the video averaging mode
are typically around 2.5 dB below the actual channel power.
Note
Any in-channel frequency response problems at the headend can impair network performance or
prevent a cable interface on the HFC network from operating. The specified maximum peak-to-valley
measurement from a Cisco cable interface card is +/–1.5 dB across 5.6 MHz. At the output of the
upconverter, the maximum tilt should not exceed +/–1.5 dB across 5.6 MHz. If the tilt is greater than
+/–1.5 dB across 5.6 MHz when measured, the upconverter might not be compatible with digital
QAM signals, or the upconverter might be defective.
Step 12
Verify that your headend RF measurements meet the recommended DOCSIS parameters listed in the
tables in Appendix B, “RF Specifications.”
Step 13
Record your headend settings and measurements in Appendix H, “Site Log,” as you verify them. This
will assist in troubleshooting the Cisco uBR7200 series router installation later in the process.
Step 14
After you have analyzed and adjusted the RF signal according to the steps outlined on the preceding
pages, proceed to the next section, “Connecting and Configuring the Upstream” section on page 4-31.
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Connecting and Configuring the Upstream
The following sections describe how to connect and configure the upstream for digital data.
Connecting the Upstream to the Optical Receiver
To connect the upstream to the optical receiver, use a 2-way splitter as a combiner to leave the
Cisco uBR900 series access router connected at the headend, and connect the upstream headend cable
to the optical receiver. (See Figure 4-34.)
The default upstream input level to the Cisco uBR7200 series cable interface card is 0 dBmV. You may
adjust the upstream input level to other values using the Cisco IOS software running on your router. The
Cisco uBR7200 series router uses automatic power control when transmitting to remote cable modems.
Accurately setting the power level helps to ensure reliable cable modem operation.
Table 4-1 provides upstream input power ranges for the various cable interface cards available for the
Cisco uBR7200 series router, depending on the channel bandwidth you are using.
Table 4-1
Upstream Input Power Ranges According to Cable Interface Card Type
Channel Bandwidth
Cisco MC11 FPGA
Cisco MC16B, MC1xC1,
MC16E, and MC16S
200 KHz
n/a
–10 to +25 dBmV
–16 to +14 dBmV
400 KHz
n/a
–10 to +25 dBmV
–13 to +17 dBmV
800 KHz
n/a
–10 to +25 dBmV
–10 to +20 dBmV
1.6 MHz
–10 to +10 dBmV
–10 to +25 dBmV
–7 to +23 dBmV
3.2 MHz
n/a
–10 to +25 dBmV
–4 to +26 dBmV
DOCSIS Specification
1. The designation “MC1xC” includes the MC11C, MC12C, MC14C, and MC16C cable interface cards.
Note
If you have an Cisco MC16x cable interface card (six upstream ports and one downstream port)
installed in your Cisco uBR7200 series router, the 2-way splitter described above would be replaced
by six 2-way splitters (one splitter per upstream port). This would enable you to connect to all of the
available upstream ports on the Cisco MC16x.
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Figure 4-34 Connecting and Configuring the Upstream
Cisco uBR7200
series router
X-level test point signal level
must be the same for all
optical receivers (+/- 0.5 dB),
See Fig. 4-36 and Fig 4-37
2-way
splitter
(combiner)
10 dB
attenuator
X
Optional attenuator
to adjust X-level point
measurement
Optical
receiver
14044
Upstream
Diplex filter
40 dB
attenuator
To downstream forward
test point on laser transmitter
L H
C
Cable
modem
Testing the Upstream Configuration
To test the upstream configuration, insert a test signal of known amplitude (+17 dBmV is shown in this
example) into the fiber node and measure the amplitude output level at the output of the headend’s
optical receiver. This measurement depends on return laser performance and optical distance. This
procedure is known as “Establishing the “X-level” test point. (See Figure 4-35.)
Figure 4-35 The “X-level” Test Point
Spectrum analyzer
Optical
receiver
+17 dBmV
10 km
Spectrum analyzer
+11 dBmV
Insert +17 dBmV signal
Fiber node
0.5 milliwatt
Optical
receiver
30 km
Insert +17 dBmV signal
Fiber node
1.0 milliwatt
Measure +10 dBmV at this point
X
X-level test point = +10 dBmV
(in this example)
14045
1dB attenuator
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This “X-level” test point measurement will be different for every fiber node in the HFC network until
you adjust the attenuation on the upstream. You must adjust the attenuation so that this measurement is
the same on every fiber node. If you change a receiver or a transmitter at the fiber node, or if you unplug
a connector and plug it back in, you must recheck this amplitude measurement. Figure 4-36 shows how
three distribution network “X-level” test-points connected to the same upstream port are all calibrated
to +10 dBmV using different attenuators.
Figure 4-36 Calibrating Multiple “X-level” Test Points Connected to One Upstream Port
Cisco uBR7200
series
Upconverter
Upstream
0 dBmV
Downstream
+13 dBmV
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
+18 dBmV
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
+31 dBmV
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
+10 dBmV
3 dB
attenuator
X
3 dB
attenuator
+10 dBmV
3 dB
attenuator
4-way
splitter
X
8 dB
attenuator
+10 dBmV
3 dB
attenuator
X
21 dB
attenuator
+31 dBmV
Distribution
network
+48 dBmV
Modem transmit levels
+58 dBmV
Distribution
network
+42 dBmV
Modem transmit levels
+50 dBmV
Distribution
network
+46 dBmV
+49 dBmV
Diplex filter
40 dB
attenuator
Cable
modems
Modem transmit levels
L H
C
To downstream
forward test point
on laser transmitter
14046
Cable
modem
Figure 4-37 on page 4-34 shows how three distribution network “X” points connected to the three
different upstream ports are all calibrated to +10 dBmV using different attenuators.
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Figure 4-37 Calibrating Multiple “X-level” Test Points Connected to Multiple Upstream Ports
Cisco uBR7200
series router
Upconverter
Downstream
Upstream
0 dBmV
+10 dBmV
2-way
splitter
6 dB
attenuator
X
+13 dBmV
3 dB
attenuator
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
Diplex filter
40 dB
attenuator
L H
Downstream
(0 to +5 dBmV)
Cable
modems
+31 dBmV
Distribution
+48 dBmV
network
Modem
transmit
levels
C
Cable
modem
+10 dBmV
2-way
splitter
6 dB
attenuator
X
+18 dBmV
3 dB
attenuator
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
Diplex filter
40 dB
attenuator
L H
Downstream
(0 to +5 dBmV)
+58 dBmV
Distribution
+42 dBmV
network
Modem
transmit
levels
C
Cable
modem
+10 dBmV
2-way
splitter
6 dB
attenuator
X
+31 dBmV
21 dB
attenuator
Reverse optical
Optical
receiver Fiber-optic transmitter
+17 dBmV
cable
Diplex filter
40 dB
attenuator
L H
Downstream
(0 to +5 dBmV)
+50 dBmV
Distribution +42 dBmV
network
+49 dBmV
Modem
transmit
levels
Cable
modem
15428
C
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Measuring the Upstream RF Signal
You can use a spectrum analyzer to measure the upstream signal from one or more remote cable modems
in a two-way data cable network. Performing this procedure can help alert you to potential problems in
your cable network’s upstream configuration before a problem occurs. This helps to avoid trying to solve
a problem after a remote cable modem has experienced a failure in service. This procedure is referred to
as the “zero-span” method.
Measuring the Upstream RF Signal Using a Spectrum Analyzer
This procedure is designed to help you accurately measure an upstream RF signal where no adjacent
channels are in use. To measure an upstream RF signal with active adjacent channels, refer to the “Using
the Zero-Span Method with Adjacent Upstream Channels” section on page 4-42.
Note
Refer to the user guide that accompanied your spectrum analyzer to determine the exact steps
required to use your analyzer to perform these measurements.
Step 1
Connect the spectrum analyzer to the upstream signal from your cable network.
Step 2
Turn the power switch on the spectrum analyzer to the ON position.
Step 3
Set the spectrum analyzer to view the upstream RF signal with a center frequency matching the actual
upstream center frequency defined in your Cisco uBR7200 series configuration file.
Step 4
Set the spectrum analyzer’s span to 0 MHz.
Note
You can view the configuration file for your Cisco uBR7200 series router by using the
show controller cable slot/upstream-port | include frequency command, available in Cisco IOS
Release 11.3(6)NA or later releases and Cisco IOS Release 12.0(5)T1 or later releases. For example,
if you wanted to view the center frequency of port 0 on a cable interface card in slot 3, you would
enter the
show controller cable 3/0 | include frequency command.
If you have assigned spectrum groups in your configuration file, use the show cable hop command
to display the current upstream center frequency for each cable interface.
Step 5
Set both the resolution bandwidth and the video bandwidth on the spectrum analyzer to 3 MHz and the
sweep rate to 20 ms. Provided there is a large amount of activity on your upstream channel, the spectrum
analyzer should display a signal similar to the one shown in Figure 4-38.
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Figure 4-38 Measuring the Upstream RF Signal—Setting the Resolution and Video Channel
Bandwidth
Tip
Step 6
Note
The horizontal line passing through the center of the spectrum analyzer display in Figure 4-38 is the
trigger line.
Set the sweep value to 80 microseconds. Your spectrum analyzer should display a signal similar to the
one shown in Figure 4-39.
Be sure that your particular spectrum analyzer is capable of supporting sweep times as short as 80
microseconds.
Figure 4-39 Measuring the Upstream RF Signal—Setting the Sweep Time Period
Step 7
Position the trigger line on the spectrum analyzer so that it is roughly in the middle (approximately
halfway between the highest and lowest portions) of the upstream RF signal.
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Note
Please refer to the documentation that accompanied your particular spectrum analyzer for detailed
instructions on activating and positioning the trigger line.
A known workaround exists for the Agilent 8591C spectrum analyzer. After activating and
positioning the trigger line in video mode, you must press the “video” button on the spectrum
analyzer once more to enable proper functionality.
Step 8
Note
Adjust the amplitude on your spectrum analyzer so that the uppermost portion of the upstream RF signal
is in the top graticule of the analyzer’s display grid and adjust the trigger line accordingly. Your spectrum
analyzer will then display an upstream RF signal similar to the one shown in Figure 4-40.
Cisco does not recommend using the spectrum analyzer’s “max-hold” feature while analyzing
upstream signals in the frequency domain. “Max-hold” readings in the frequency domain can be
inaccurate because the analyzer focuses on the peak power of the strongest ranging modem rather
than the power levels of cable modems that are operating in a more ideal range.
Figure 4-40 Measuring the Upstream RF Signal—Accurately Measured Amplitude on Spectrum
Analyzer
Step 9
Note
Position a marker about 7/8 of the way into the preamble of the signal, as illustrated in Figure 4-40. (The
preamble is the regular pattern displayed at the front of the signal and the length of the preamble is a
function of the channel width/data rate, modulation format, and DOCSIS burst-profile configurations.)
The peak amplitude of the marker, which registers +31.07 dBmV in this case, will be within 1 dB of the
true burst power.
To verify this reading, you can also measure the power rating with an HP 89441A vector signal
analyzer (http://www.tm.agilent.com).
If the preamble of your upstream signal is displayed with a significantly lower amplitude than the rest
of the RF signal, refer to the “Using the Zero-Span Method with Adjacent Upstream Channels” section
on page 4-42 for instructions on how to overcome this phenomenon.
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Step 10
Verify that your headend RF measurements meet the recommended DOCSIS parameters listed in the
tables in Appendix B, “RF Specifications.”
Step 11
Record your headend settings in the last column in your Appendix H, “Site Log.” This will assist in
troubleshooting the Cisco uBR7200 series universal broadband router installation later in the process.
Note
Be sure not to narrow the focus of your analysis any further than approximately 3-MHz channel
width. Doing so can yield incorrect readings. For example, if you were to view an upstream RF signal
with a resolution bandwidth of only 300 KHz and a video channel bandwidth of only 100 KHz, your
measurements would register lower than the actual transmission levels.
Analyzing the Upstream RF Signal
When you have set up your spectrum analyzer to accurately read the upstream RF signal, you can verify
that a remote cable modem is operating as it should by pinging the modem via a console terminal.
Step 1
Log in to your Cisco uBR7200 series universal broadband router with a console terminal.
Step 2
Adjust the sweep time on your spectrum analyzer to 20 msec.
Step 3
Ping the remote cable interface card using first a 64-byte, then a 1500-byte ping packet request and take
note of the upstream RF signal in each case. Several hundred or thousand ping packets might be required
for a usable pattern to emerge.
Figure 4-41 and Figure 4-42 provide two examples of an ideal upstream RF signal based on a simple 64or 1500-byte ping of a single remote cable interface. The more slender of the data spikes in the RF signal
(the first and third spikes in Figure 4-41) are bandwidth request packet transmissions, while the larger
spikes are the actual 64- or 1500-byte ping packet returns.
Figure 4-41 Analyzing the Upstream RF Signal—64-Byte Data Packets
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Figure 4-42 Analyzing the Upstream RF Signal—1500 Byte Data Packets
Note
Both of the previous examples feature 16-QAM transmission with a channel width of 3.2 MHz,
yielding a 10-Mbit/sec data rate. In addition, these examples have an optimal upstream
carrier-to-noise ratio of approximately 50 dB.
Now it is time to view your upstream RF signal with multiple remote cable modems. Figure 4-43 and
Figure 4-44 on page 4-40 both display upstream RF signals encompassing more than one remote cable
modem. In each case, there are two bandwidth requests followed by their respective ping packet returns,
both at slightly different amplitudes. This situation is most commonly caused by a difference in the
receive power from the two cable modems in question. We will label the remote cable modem with the
lesser amplitude “cable modem A” and the other “cable modem B.”
In the following example, cable modem A and cable modem B have been artificially configured to yield
a larger than normal difference in amplitude between their respective upstream RF transmissions. Under
normal conditions, the maximum difference in amplitude between any cable modems will be about
1.5 dB. Differences greater than 1.5 dB indicate a possible cable plant or remote cable modem problem.
Note
To further illustrate this point, you can log in to your Cisco uBR7200 series router using a console
terminal and by entering the show cable modem command to obtain a report of the receive power
ratings for each modem. In our example, the receive power ratings for remote cable modems A and
B are –2 dBmV and 0 dBmV, respectively.
The two bandwidth requests and ping packet returns on the upstream RF signal for cable modems A and
B are slightly different in Figure 4-43 and Figure 4-44 on page 4-40. Differences in the distance between
bandwidth requests are primarily caused by the contention-based nature of multiple remote cable
modems on the same line. Differences in the distance between ping packet returns are primarily caused
by factors such as packet size and system loading.
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Figure 4-43 Analyzing the Upstream RF Signal—Multiple Active Remote Cable Modems (A)
Figure 4-44 Analyzing the Upstream RF Signal—Multiple Active Remote Cable Modems (B)
Note
When viewing the upstream RF signal on your spectrum analyzer, two ping packet returns (for
example, from remote cable modems A and B) can be so close together that they appear to be one
rather large packet with a slight jump or decline in amplitude halfway through the measurement. This
is an indication that the upstream is 100 percent occupied during this time.
Figure 4-45 on page 4-41 shows upstream RF signal from a remote cable modem in a “real-life” scenario
including outside plant noise. Notice the relatively tall spike at the very left edge of the ping packet
return. This spike is mainly additive noise associated with an upstream RF signal mired by excessive
amounts of severe outside plant noise (as in this example). In addition, you will notice that the
carrier-to-impulse noise ratio measurement between the two diamond-shaped markers is only about 12
dB. (A few other noise peaks are even worse.)
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The importance of this example is to bring to your attention the need for minimal outside plant noise.
Time-varying, fast noise can cause bit errors in packet transmissions, rendering your communication link
unreliable, if not unusable.
Figure 4-45 Analyzing the Upstream RF Signal—Outside Plant Noise Included
Note
This illustration depicts an upstream RF signal whose carrier-to-impulse noise ratio does not meet
DOCSIS 1.0 specifications. The data packet in Figure 4-45 was “dropped” due to severe noise
interference with a more narrow resolution bandwidth.
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Using the Zero-Span Method with Adjacent Upstream Channels
When measuring upstream signals using the zero-span method, a very wide resolution and video
bandwidth give very accurate readings, but render your readings susceptible to energy in adjacent
channels. As the number of upstream services increases, so does the likelihood of interference from
adjacent channels. This section describes using the zero-span power measurement method, with a more
narrow resolution bandwidth.
Simply narrowing the resolution bandwidth will not yield accurate readings. See Table 4-2.
Table 4-2
Sample Channel Width and Symbol Rate Combinations with Their Respective Minimum Resolution Bandwidth
Measurements
Center Frequency
Channel Width
Symbol Rate
1/2
Symbol Rate
Center Frequency
+/–1/2 Symbol Rate
Minimum Resolution
Bandwidth
20.000
200 kHz
160
80
20.080 and 19.020 MHz
10 kHz
30.000
400 kHz
320
160
30.160 and 29.840 MHz
30 kHz
40.000
800 kHz
640
320
40.320 and 39.680 MHz
100 kHz
25.000
1.6 MHz
1280
640
25.640 and 24.360 MHz
100 kHz
28.000
3.2 MHz
2560
1280
29.280 and 27.720 MHz
300 kHz
Step 1
Display a signal complete with preamble and upstream data transmission information similar to the
resulting signal from Step 3 through Step 10 under “Measuring the Upstream RF Signal Using a
Spectrum Analyzer” section on page 4-35. Your spectrum analyzer should display a signal similar to the
one in Figure 4-46.
Figure 4-46 Preamble Amplitude Before Resolution and Video Bandwidth Reduction
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Note
Step 2
Figure 4-46 on page 4-42 is a display from a standard spectrum analyzer. The following figures,
Figure 4-47 through Figure 4-50, are taken from a vector signal analyzer. If you do not have access
to a vector signal analyzer, or wish to skip the following section describing its use when viewing your
upstream signal, proceed to Step 3.
(Optional) View your upstream signal using a vector signal analyzer like the Agilent 89441A.
The advantage of displaying these signals with the vector signal analyzer is that you can view them over
the time domain for a specified time interval. In addition, the vector signal analyzer enables you to
measure the digital channel power of a very short duration data transmission, like the preamble of a
digital signal.
a.
Set up your vector signal analyzer to view both the “frequency” domain and “time” domain of your
upstream signal. Your vector signal analyzer should display a pair of signals similar to those in
Figure 4-47.
Figure 4-47 Vector Signal Analyzer Plot of Upstream Data Burst
The upper graph in Figure 4-47 represents the frequency domain and the lower graph represents the
time domain.
In the time domain, the channel power of the preamble of a digital upstream signal is not spread
across the entire channel. However, the channel power of the remainder of the digital transmission
is spread across the entire channel. Even though it may not seem so, the total channel power across
both the preamble and the subsequent data segment remains constant.
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b.
Narrow the view on your vector signal analyzer to display only the preamble of the digital data
signal in both the frequency domain and time domain.
The upper display in Figure 4-48 is a plot of only the preamble portion of the digital signal in
Figure 4-47 on page 4-43. Notice how the amplitude of the signal experiences many “peaks” and
“valleys.” When you are measuring the preamble power using the zero-span method, be sure that
you measure the actual signal energy (a peak), rather than accidentally measuring the power level
of a valley in the preamble.
Figure 4-48 Vector Signal Analyzer Plot of Upstream Data Burst (Preamble Only)
Figure 4-47 on page 4-43 and Figure 4-48 illustrate the benefit of properly adjusting the center
frequency of your spectrum analyzer to enable the power measurement of the preamble to match the
power measurement of the rest of the digital transmission.
Figure 4-47 and Figure 4-48 show how adjusting the spectrum analyzer in the time domain reveals
this frequency domain phenomenon. The spectrum analyzer is unable to capture the data as shown
in the vector signal analyzer plots.
The power level in the upstream channel fluctuates by approximately 1 dB between Figure 4-47 and
Figure 4-48. This difference is within both the measurement tolerance of the vector signal analyzer
and the accuracy requirement for any DOCSIS-based cable modem.
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c.
Switch your vector signal analyzer over to Digital Demodulation Mode. Your vector signal analyzer
displays a set of screens similar to those in Figure 4-49.
Using this mode to view your upstream signal allows you to view the same time and frequency
domain information found in Figure 4-48 on page 4-44, as well as the upstream signal’s phase
characteristics, shown in the bottom-right portion of the vector signal analyzer display screen.
Figure 4-49 Vector Signal Analyzer Plot of Upstream Data Burst (Preamble Only)—QPSK
Demodulation Mode
d.
Switch your vector signal analyzer over to quaternary phase shift keying (QPSK) demodulation
mode. Your vector signal analyzer will display a set of screens similar to those in Figure 4-50 on
page 4-46.
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Figure 4-50 displays the QPSK demodulation information for the same upstream signal as in
Figure 4-49 on page 4-45. However, there are some notable differences in the information presented.
For example, notice that the constellation and transition graphs (top and bottom left) both indicate
only two of the four QPSK data points handling any bits. Because this graph is covering only the
preamble of the data transmission, you get to see only a portion of the whole signal performance.
(If you were to view the entire signal transmission in this mode, all four QPSK data points would
display bits.)
Figure 4-50 Vector Signal Analyzer Plot of Upstream Data Burst (Preamble Only)—Digital
Demodulation Mode
Before moving on to Step 3, be sure to hook your spectrum analyzer back up to the upstream signal
source.
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Step 3
On your spectrum analyzer, narrow both the resolution and video bandwidth to 1 MHz. You will notice
that the preamble of the signal has dropped in amplitude, yielding a spectrum analyzer display similar
to the one in Figure 4-51.
Figure 4-51 Preamble Amplitude Before Center Frequency Adjustment
Note
Step 4
The slight amplitude variations shown in these figures are normal signal level variations between
bursts in the upstream channel. Expect modems to vary upstream transmit power by nearly 1 dB
between bursts. This is well within the requirements for DOCSIS compliance. The default variation
between modems is up to 1.5 dB for most DOCSIS CMTS equipment.
Using the examples in Table 4-2 as a basis for the formula, calculate the correct center frequency offset
necessary to measure the preamble peak power when viewed in a narrow bandwidth.
In our example, the channel width is 1.6 MHz, which has a symbol rate of 1280 ksym/sec; therefore, the
appropriate offset value is 640 kHz.
Step 5
Change the center frequency on the spectrum analyzer by this offset value (33.248 MHz in our example)
and check to see that the preamble has regained its lost amplitude by comparing it to the amplitude of
the rest of the signal. If so, your spectrum analyzer should display a signal similar to the one in
Figure 4-52 on page 4-48.
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Figure 4-52 Preamble Amplitude Recovery After Center Frequency Adjustment
To get an even better look at the patterns and dramatic shifts in amplitude within the preamble itself, you
can accelerate the sweep time for your zero-span signal processing.
Step 6
Tune the spectrum analyzer to the original center frequency (32.608 MHz in this example).
Step 7
Reset both the resolution and video bandwidth of the signal back to 3 MHz, but reduce the sweep time
from 200 microsecond to 60 microsecond. The resulting display, similar to Figure 4-53, clearly shows
the “tight” pattern of the preamble stretched across three-quarters of the spectrum analyzer display.
Figure 4-53 Original Preamble Viewed with Accelerated Sweep Time
Step 8
Change the center frequency back to 33.248 MHz and both the resolution and video bandwidth values
to 1 MHz, retaining the new sweep time of 60 microsecond. The peak amplitude is clearly displayed with
approximately 4.25 dB difference between the preamble and the rest of the upstream data transmission.
(See Figure 4-54 on page 4-49.)
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Measuring the Upstream RF Signal
Note
The 4.25 dB decrease in amplitude is due to a combination of half of the channel bandwidth (3 dB)
and an additional 1.25 dB decrease attributed to the digital channel filter mask, known as the “alpha.”
The value of alpha is 25 percent of an upstream DOCSIS channel’s width, and the peak signal energy
spread across the entire upstream channel width.
Figure 4-54 Preamble with Decreased Amplitude and Condensed Sweep Time
Step 9
Narrow the resolution bandwidth from 1 MHz to 100 kHz and increase the video bandwidth to 3 MHz,
still retaining the 60 microsecond sweep time. Your spectrum analyzer should display a signal similar to
Figure 4-55.
Figure 4-55 Very Narrow Resolution Bandwidth Limits Range of Spectrum Analysis
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Measuring the RF Signal at the Forward Test Point on a Laser Transmitter
Note
The slight “ramp-up” at the beginning of the preamble when viewed in this mode is attributed to the
time required to charge the spectrum analyzer’s detector circuit.
Figure 4-55 on page 4-49 shows a smooth and easily measured signal amplitude, providing accurate
measurement of a very fast burst upstream carrier. You can compare the measurements obtained using a
spectrum analyzer with those of specialized test equipment. In general, the readings from the spectrum
analyzer will be within 1 to 2 dB of the (more expensive) specialized equipment. Because 1 to 2 dB is
well within the calibration accuracy of spectrum analyzers, you can reliably use these procedures in the
cable headend environment.
Measuring the RF Signal at the Forward Test Point on a Laser
Transmitter
This section describes RF signal measurements that should be taken with a spectrum analyzer at the
downstream forward test point on the fiber-optic laser transmitter. (See Figure 4-14 for the location of
the downstream forward test point.)
Use the following steps to measure the downstream forward test point on the fiber-optic laser transmitter:
Step 1
Connect the spectrum analyzer to the downstream forward test point on the fiber-optic laser transmitter.
Figure 4-56 shows a typical measurement of the downstream forward test point.
Figure 4-56 Measuring the RF Signal at the Downstream Forward Test Point on the Laser Transmitter
Step 2
Using the spectrum analyzer zoom feature, zoom the display in on the first individual video channel. In
the example in Figure 4-57 on page 4-51, the first video channel is channel 48.
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Figure 4-57 Downstream Forward Test Point on the Laser Transmitter—Video Channel Display
Step 3
Select the carrier level (or amplitude) function. Figure 4-58 shows the detailed display of the analog
carrier level and frequency screen for the channel 48 (in this example).
Figure 4-58 Downstream Forward Test Point on the Laser Transmitter—Detailed Video Channel
Display
Step 4
Return to the main menu on your spectrum analyzer.
Step 5
Select a digital channel to measure. In the example in Figure 4-59 on page 4-52, the digital channel
shown is channel 50.
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Figure 4-59 Downstream Forward Test Point on the Laser Transmitter—Digital Channel Display
Step 6
Go to the main menu on the spectrum analyzer and advance the screen displays (next screen) until the
digital channel power display is shown. (See Figure 4-60.)
Figure 4-60 Downstream Forward Test Point on the Laser Transmitter—Digital Channel Power Display
Note
The +3.6 dBmV digital power rating is nearly the same as the previously measured video carrier level
(+4.3 dBmV). This value is too high to provide reliable digital data transmission.
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Measuring the RF Signal at the Forward Test Point on a Laser Transmitter
Step 7
Set the upconverter output level so that the amplitude of the digitally modulated carrier is 6 dB to 10 dB
below the amplitude found on the same frequency on an analog TV channel.
Step 8
Select the video averaging feature to verify flatness through the headend combiner. After 10 averages,
the power rating decreases by approximately 2.5 dB from actual digital channel power. While video
averaging is in progress, your spectrum analyzer should display a signal similar to the one shown in
Figure 4-61.
Figure 4-61 Downstream Forward Test Point on the Laser Transmitter—Digital Channel Display Using
Video Averaging
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Configuring the Digital Signal
Configuring the Digital Signal
After you have configured the RF signal, you must configure the digital data signal that will be carried
between the Cisco uBR7200 series universal broadband router and cable modems.
Cisco recommends installing a Cisco uBR900 series cable access router at the headend to verify the
digital data configuration. For instructions on how to install a Cisco uBR900 series access router, refer
to the installation and configuration guides for the Cisco uBR900 series access router that you are using,
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_modm/index.htm.
The output of the Cisco uBR7200 series router is a standard 44-MHz center frequency IF signal. IF
signals are converted to RF signals through an upconverter. Upconverter output levels should be set to
carry the digital signal data at 6 to 10 dB below the adjacent analog video signal. The value chosen is at
the discretion of each cable operator.
Note
The value chosen for the digital data in relation to the adjacent video signal must be made available
to field technicians installing Cisco uBR900 series access routers.
At a cable interface connection, this value can be measured to verify the correct operation of the
cable interface.
Careful system design and operation can prevent potentially serious intermittent performance problems
across your cable interface network. Each cable operator should make use of the following guidelines
and practices to ensure reliable operation of any 64-QAM based digital network:
“NCTA Recommended Practices for Measurements on Cable Television Systems”
(http://www.ncta.com)
Part 76 of the FCC Rules and Regulations (http://www.fcc.gov/csb/cstech.html)
DOCSIS 1.0 RF Interface Specification (http://www.cablemodem.com/specs/SP-RFI-I06-010829.pdf)
DOCSIS 1.1 RF Interface Specification (http://www.cablemodem.com/specs/rfi_v1.1_I07-010829.pdf)
For example, if your headend overdrives the fiber-optic lasers transmitters, in either the upstream or
downstream path, clipping may occur. Laser clipping leads to degraded signal integrity. In minor doses,
this signal damage is not immediately visible on an analog video signal, but it can completely disrupt
the digital transmission path. (That is, digital signals are more sensitive to clipping than analog signals
and will more readily display the negative effects of laser clipping.)
If a digital signal employing forward error correction (FEC) is near its impairment limit, it is very
susceptible to changes in signal level—on the order of as little as 0.1 dB. If there is no amplitude margin
available in the transmission path between the headend and any one cable modem, the typical signal level
variations of a properly functioning cable system (3 to 6 dB) can create intermittent service outages that
are difficult to isolate.
Typical CATV measurement equipment, such as digital signal level meters, measure to an accuracy of
+/–1 dB. However, some older analog meters only measure to an accuracy of +/–3 dB; therefore,
maintaining 6-dB margins above the minimum levels can provide reliable long-term service.
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5
Troubleshooting
This chapter provides troubleshooting information for the Cisco uBR7200 series universal broadband
routerand contains the following sections:
•
Overview, page 5-1
•
Problem Solving with Subsystems, page 5-2
•
Power Subsystem, page 5-5
•
Cooling Subsystem, page 5-6
•
Processor Subsystem, page 5-6
•
About Verifying the Downstream Signal, page 10
Overview
This chapter contains instructions to help installers and technicians troubleshoot hardware installation.
Figure 5-1 shows the general troubleshooting strategy used to troubleshoot the hardware. Refer to this
flow chart as necessary and follow the steps to isolate hardware problems to a specific subsystem.
For cable-specific commands for Cisco uBR7200 series universal broadband routers, refer to
Cisco Broadband Cable Command Reference Guide at the following URL:
http:/www.cisco.com/univercd/cc/td/doc/product/cable.
Resolve the problem if possible or contact the Cisco Technical Assistance Center. For Cisco TAC contact
information see the “Obtaining Technical Assistance” section on page xvi.
Providing Information
If you are contacting Cisco TAC or your Customer Service representative, please provide the following
information:
•
Date you received your Cisco uBR7200 series universal broadband router
•
Chassis serial number
•
Type of software and release number
•
Brief description of the problem you are having
•
Brief explanation of the steps you have taken to isolate and resolve the problem
•
Maintenance agreement or warranty information
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Problem Solving with Subsystems
Troubleshooting Strategy for Startup Problems
Turn on
system power
DC OK
LED on?
No
Troubleshoot
power
subsystem
DC OK
LED on?
Yes
Fans
operating?
Check system
state with
interface card
LEDs
End
No
Cable interface
card
LEDs OK?
Reseat cable
interface
cards and
restart
No
Interface card
LEDs OK?
Check the
headend
setup
End
No
Digital
data
connections
enabled?
Yes
Troubleshoot
headend
setup for
RF and data
No
Digital
data
connections
enabled?
Yes
System
startup
successful
Yes
No
Troubleshoot
cooling
subsystem
Fans
operating?
Yes
No
Yes
Check system
state with I/O
controller LEDs
I/O
controller
LEDs
OK
Yes
No
No
Troubleshoot I/O
controller
and restart
I/O
controller
LEDs
OK
Yes
No
Yes
Check system
state with port
adapter LEDs
Port
adapter
enabled
LEDs
on?
No
Troubleshoot
port adapters
and restart
Port
adapter
enabled
LEDs
on?
Yes
Yes
No
Obtain
technical
assistance
End
62742
Figure 5-1
Problem Solving with Subsystems
Tip
Isolating a problem to a specific subsystem simplifies the troubleshooting process.
The first step in isolating a problem is to compare what the system is doing to what it should be doing.
Usually a startup problem is caused by a single component, so first isolating the problem to a subsystem
rather than troubleshooting every component in the entire system is more efficient. The Cisco uBR7200
series router subsystems are listed below.
•
Power subsystem—Includes the power supplies, the external power cable, and the midplane.
•
Cooling subsystem—Chassis fan tray is the single component in this subsystem. The fans should be
operating whenever system power is on.
Replace the fan tray if you determine that a fan is not functioning properly.
•
Processor subsystem—Includes the I/O controller, network processing engine, all port adapters, the
clock card (Cisco uBR7246VXR only), and cable interface cards.
The system memory and management functions reside on the I/O controller and the network processing
engine. The enabled LED on each port adapter or cable interface card indicates if the port adapter or
cable interface card is initialized.
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Problem Solving with Subsystems
Caution
A port adapter or cable interface card that is partially installed in the midplane can cause the system
to hang and crash.
•
Cable headend subsystem—External to the Cisco uBR7200 series router, this subsystem can prevent
operation of the universal broadband router if the headend is not properly set up for the introduction
of digital data into the hybrid fiber-coaxial (HFC) network.
The following section helps you isolate a problem to one of the subsystems and directs you to the
appropriate troubleshooting section.
Identifying Startup Problems
When you start up the Cisco uBR7200 series router for the first time, observe the startup sequence
described in the “Powering On the Cisco uBR7200 Series Router” section on page 3-24. This section
contains a detailed description of the normal startup sequence.
Although an overtemperature condition is unlikely at initial startup, the environmental monitoring
functions are included in this chapter because they also monitor internal voltages.
Startup problems are commonly caused by source power problems or a board (network processing
engine, I/O controller, port adapter, or cable interface card) that is not properly connected to the
midplane. Always check that your boards are properly installed in the chassis.
Note
On rare occasions, the LED may be faulty.
With the exception of the fan tray and network processing engine, LEDs indicate all system states in the
startup sequence. By checking the state of the LEDs, you can determine when and where the system
failed in the startup sequence.
Use the following descriptions to isolate the problem to a subsystem, then proceed to the appropriate
sections to try to resolve the problem. When you start up the system, by turning on the power supply
switch, the following should occur:
1.
You should immediately hear the fans operating. If not, proceed to the “Cooling Subsystem” section
on page 5-6. If you determine that the power supply is functioning normally and that a fan is faulty,
contact a customer service representative, see “Obtaining Technical Assistance” section on
page xvi. If a fan does not function properly at initial startup, there are no installation adjustments
that you should make.
2.
The power supply’s green power OK LED (at the rear of the chassis) should go on immediately when
you place the power supply switch in the ON (|) position, and should remain on during normal
system operation. If the green power OK LED does not go on, proceed to “Power Subsystem”
section on page 5-5.
3.
The LEDs on the I/O controller should go on as follows:
a. The I/O power OK LED comes on immediately and indicates that the I/O controller is receiving
DC power from the Cisco uBR7200 series router midplane. This LED comes on during a
successful boot and remains on during normal operation of the router.
If this LED remains off when starting the router, either there is a problem with the power supply
(it is damaged or not connected to the Cisco uBR7200 series router midplane), or the network
processing engine (NPE) or the I/O controller is not connected to the midplane. Proceed to the
“Troubleshooting the I/O Controller” section on page 5-7.
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Problem Solving with Subsystems
b. The enabled LED comes on after the I/O power OK LED and indicates that the network
processing engine and the I/O controller are enabled for operation by the system; however, it
does not mean that the Fast Ethernet port on the I/O controller is functional or enabled. This
LED goes on during a successful boot and remains on during normal operation of the
Cisco uBR7200 series router.
If this LED remains off when you start the router, it is probably a problem with the network
processing engine or the I/O controller (they are damaged or not connected to the
Cisco uBR7200 series router midplane), or the Fast Ethernet port is in shutdown mode. Refer
to Troubleshooting the I/O Controller, page 5-7 and Troubleshooting the Network Processing
Engine, page 7.
c. The FE enabled LED comes on after the enabled LED and indicates that the Fast Ethernet port
on the I/O controller is initialized and enabled for operation by the system. This LED comes on
during a successful boot and remains on during normal operation of the Cisco uBR7200 series
router.
If this LED remains off when starting the router, it is probably a problem with the Fast Ethernet
port on the I/O controller. Refer to the “Troubleshooting the I/O Controller” section on
page 5-7.
d. The FE link LED comes on only when the Fast Ethernet port on the I/O controller is receiving
a carrier signal from the network. This LED remains off during normal operation of the router
unless there is an incoming carrier signal, and does not indicate startup problems.
e. The slot 1 and slot 2 LEDs come on after the enabled LED and indicate which Personal
Computer Memory Card International Association (PCMCIA) slot is in use. During a successful
boot, these LEDs come on and remain on if a Flash memory card is present in the slot. These
LEDs also blink when either slot is being accessed by the system. These LEDs do not indicate
startup problems.
4.
The enabled LED on each port adapter comes on when the network processing engine completes its
initialization of the port adapter for operation. The enabled LED indicates that the port adapter is
receiving power and has been recognized by the network processing engine; it does not indicate the
state of the individual interfaces on the port adapters. If an enabled LED fails to come on, refer to
the “Troubleshooting Port Adapters” section on page 5-8.
5.
The enable LED on the clock card (Cisco uBR7246VXR only) comes on when the network
processing engine completes its initialization of the clock card for operation. The enable LED
indicates that the clock card is receiving power and has been recognized by the network processing
engine; it does not indicate the state of the primary or secondary interfaces on the clock card. If the
enable LED fails to go on, refer to the “Troubleshooting the Cisco Cable Clock Card
(Cisco uBR7246VXR only)” section on page 5-8.
6.
The enabled LED on each cable interface card comes on when the network processing engine
completes its initialization of the card for operation. The enabled LED indicates that the card is
receiving power and has been recognized by the network processing engine; it does not indicate the
state of the individual interfaces on the card. If an enabled LED fails to come on, refer to the
“Troubleshooting Cable Interface Cards” section on page 5-9.
7.
When all LEDs come on to indicate that the system has booted successfully, the initial system
banner should appear on the console screen. If it is not displayed, refer to the “Console and
Auxiliary Port Connection Equipment” section on page 3-16 to verify that the terminal is set
correctly and that it is properly connected to the I/O controller’s console port.
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Power Subsystem
Power Subsystem
Check the following to help isolate a problem with the power subsystem:
Step 1
Toggle the power supply switch off and on.
Step 2
On the first power supply, is the Power OK LED on?
•
If yes, the power source is good, and the power supply is functional.
Step 3
If no, make sure that the power cable is connected at both ends. Then toggle the power switch Off and
On.
Step 4
If the power OK LED remains off, and the power switch is on, suspect the power source or the power
cable.
Step 5
a.
Turn the switch off, and connect the power cable to another power source, if available.
b.
Turn the switch back on.
c.
If the LED comes on, the problem is the first power source.
If the power OK LED fails to come on after you connect the power supply to a new power source,
a.
Turn the power switch off.
a.
Replace the power cord.
b.
Turn the switch back on.
Step 6
If the power OK LED comes on, return the first power cable for replacement. Contact a service
representative for further instructions. See “Obtaining Technical Assistance” section on page -xvi.
Step 7
If the LED still fails to come on when the power supply is connected to a different power source with a
new power cable, the power supply is probably faulty.
Step 8
Step 9
a.
If a second power supply is available, and your Cisco uBR7200 series router has a redundant power
supply bay, install the second power supply in the second bay if there is no power supply installed
in that bay.
b.
Contact a service representative for further instructions. See “Obtaining Technical Assistance”
section on page -xvi.
Is the power OK LED on for the second (redundant) power supply?
a.
If yes, proceed to the ““Cooling Subsystem” section on page 5-6.”
b.
If not, repeat each of the above procedures for the second power supply.
If you are unable to resolve the problem or if you determine that either a power supply or chassis
connector is faulty, contact a service representative for instructions. See “Obtaining Technical
Assistance” section on page -xvi
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Cooling Subsystem
Cooling Subsystem
Check the following to help isolate a problem with the cooling system:
Step 1
Verify that the fans are operating when you start up the system.
To determine if the fans are operating, listen for them. In noisy environments, place your hand on the
left side of the chassis (when viewing the chassis from the front) to feel for air being forced out the vents.
Step 2
a.
If yes, the power to the fan tray is good.
b.
If no, there is a problem with the fan tray or power. See the “Power Subsystem” section on page 5-5.
Verify that the following message is not displayed.
Queued messages:
%ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown
If the message is displayed, the system has detected an overtemperature condition or power
out-of-tolerance condition inside the chassis.
The shutdown message could also indicate a faulty component or temperature sensor. Before the system
shuts down, use the show environment or show environment table command to display the internal
chassis environment.
If an environmental shutdown results from a power out-of-tolerance condition, the power OK LED goes
off and the system shuts down. See the “Power Subsystem” section on page 5-5.
Step 3
Although an overtemperature condition is unlikely at initial startup, ensure that heated exhaust air from
other equipment is not entering the inlet vent on the router and that there is sufficient clearance around
the sides of the chassis to allow cooling air to flow. Refer to the “Site Environment” section on page 2-6
and the “Equipment Racks” section on page 2-17 for preventive site configurations.
Processor Subsystem
The processor subsystem is comprised of the I/O controller, the network processing engine, all port
adapters, the clock card (Cisco uBR7246VXR only), and all cable interface cards. The I/O controller and
network processing engine are required system components. The system cannot operate unless the I/O
controller and network processing engine are installed properly; however, the system can operate
without any port adapters or cable interface cards installed.
If a port adapter or cable interface card is partially connected to the midplane, the card sends connection
incomplete signals to the processor, which then faults the peripheral component interconnect (PCI) bus
and causes the system to hang.
Therefore, first ensure that the I/O controller and the network processing engine are installed properly
and the system software has initialized successfully. Then, if necessary, you can troubleshoot individual
port adapters, the clock card (Cisco uBR7246VXR only), and the cable interface cards.
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Troubleshooting the I/O Controller
Check the following items to help isolate the problem.
Step 1
Verify that the I/O controller LEDs come on when the system power switch is turned on.
•
Step 2
Note
Step 3
Step 4
If the LEDs stay off, first refer to the “Power Subsystem” section on page 5-5 and the “Cooling
Subsystem” section on page 5-6 to ensure that both the fans and the power supply are functioning
properly.
If the power supply and fans appear operational but none of the I/O controller LEDs are on, check to see
if an improperly connected I/O controller or port adapter has hung the system.
If you are reseating only the port adapters, you do not need to turn the power off.
a.
With the power supply turned off, reseat the I/O controller and port adapters in their slots.
b.
Tighten all captive installation screws to make sure that the cards are securely seated.
c.
Restart the system.
Verify the I/O controller enabled LED is on.
a.
If yes, the system software has initialized successfully, and the system is operational.
b.
If no, refer to the “Troubleshooting the Network Processing Engine”, section.
If the enabled LED remains off after troubleshooting the NPE, the system detected a processor hardware
failure. This LED should be on in normal operation. Contact Cisco TAC for instructions. See the
“Obtaining Technical Assistance” section on page xvi.
Troubleshooting the Network Processing Engine
Check the following to help isolate a problem with the network processing engine (NPE) card.
Step 1
Step 2
If the I/O controller enabled LED does not go on as expected:
a.
Turn off the power to the router.
b.
Reseat the network processing engine in its slot.
c.
Restart the router.
Verify that you are running a version of Cisco IOS software that supports the NPE you are using:
a.
For the latest Cisco IOS software release information, refer to Cisco uBR7200 Series Release Notes,
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/ub7200rn/index.htm
b.
Use the show version command to determine the NPE that is installed in your router.
Router# show version
c.
If the router does not respond to the console input, contact Cisco TAC for instructions.
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Step 3
If the enabled LED remains off, the system detected a processor hardware failure. This LED should be
on in normal operation. Contact Cisco TAC for instructions. See the “Obtaining Technical Assistance”
section on page xvi.
Troubleshooting Port Adapters
Check the following to help isolate a problem with the port adapters.
Step 1
Verify that all port adapter enabled LEDs are on.
•
Step 2
If yes, the port adapter is operational.
Check to see if any port adapter enabled LEDs are off.
a.
If the enabled LED on an individual port adapter is off, suspect that the port adapter has pulled away
from the midplane.
b.
Reseat the port adapter in its slot. (You do not have to turn off the system power when removing or
replacing port adapters.) After the system reinitializes the interfaces, the enabled LED on the port
adapter should come on.
Step 3
If the port adapter enabled LED remains off, the system detected a processor hardware failure. This LED
should be on in normal operation. Contact a service representative for instructions. See “Obtaining
Technical Assistance” section on page -xvi.
Step 4
Ensure that the hardware revision of the port adapter in question is supported by your particular
Cisco uBR7200 series router chassis.
a.
Use the show diag command to determine the type of port adapter that is installed in your router.
Router# show diag slot
b.
Consult the port adapter support matrix in the Cisco uBR7200 Series Software Configuration Guide
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cr72scg/index.htm.
c.
If the router does not respond to the console input, contact Cisco TAC for instructions. See the
“Obtaining Technical Assistance” section on page xvi.
Troubleshooting the Cisco Cable Clock Card (Cisco uBR7246VXR only)
Check the following to help isolate a problem with the clock card:
Step 1
Verify that the clock card enable LED is on.
•
Step 2
If yes, the clock card is operational.
Check to see if the clock card enable LED is off.
a.
If the enable LED on the clock card is off, suspect that the clock card has pulled away from the
midplane.
b.
Power off the router.
c.
Reseat the clock card in its slot.
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Step 3
d.
Power the router back on.
e.
After the system reinitializes, the enabled LED on the port adapter should come on.
If the enable LED remains off, the system has detected a processor hardware failure. This LED should
be on in normal operation. Contact Cisco TAC for instructions, see the “Obtaining Technical Assistance”
section on page xvi.
Troubleshooting Cable Interface Cards
Check the following to help isolate a problem with the cable interface cards.
Step 1
Verify that all cable interface card enabled LEDs are on.
•
Step 2
If yes, the system is operational.
Check to see if all cable interface card enabled LEDs are off.
a.
If yes, verify that you are running a version of Cisco IOS software that supports the cable interface
cards you are using.
For the latest Cisco IOS software release information, refer to Cisco uBR7200 Series Release Notes,
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/ub7200rn/index.htm.
For the latest information on supported features, refer to Cisco uBR7200 Series Software Features,
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/ub7200sw/index.htm.
b.
Step 3
Step 4
If the Cisco IOS software is correct, contact Cisco TAC for instructions. See the “Obtaining
Technical Assistance” section on page xvi.
Check to see if any cable interface card enabled LEDs are off.
a.
If the enabled LED on an individual cable interface card is off, check to see if the cable interface
card has pulled away from the midplane.
b.
Reseat the cable interface card in its slot. (You do not have to turn off the system power when
removing or replacing cable interface cards.)
c.
After the system reinitializes the interfaces, the enabled LED on the cable interface card should
come on.
If the enabled LED remains off, the system detected a processor hardware failure. This LED should be
on in normal operation. Contact Cisco TAC for instructions. See the “Obtaining Technical Assistance”
section on page xvi.
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About Verifying the Downstream Signal
Other Troubleshooting Information Websites
These websites are provided to help you find the most current troubleshooting information:
•
Search the Cisco TAC assistance website, at the following
http://www.cisco.com/public/support/tac/home.shtml
– Enter uBR7200 in the Common Tasks search box
– Select Technical Tips.
– Click Search.
•
Search cable products field notices at the following URL:
http://www.cisco.com/warp/public/770/61.html
•
Find router and IOS architecture technical tips at the following URL:
http://www.cisco.com/warp/public/63/index.shtml
•
If your system is still not responding, find help at the following URL:
http://www.cisco.com/warp/public/63/why_hang.html
About Verifying the Downstream Signal
If the cable modem termination system (CMTS) has not been properly set up to support digital data, the
Cisco uBR7200 series router might start up, but fail to support data transmission. You can use a router
with diagnostic capabilities, such as the Cisco uBR900 series cable access routers, to verify the
downstream signal originating from a Cisco uBR7200 series router. The Cisco uBR900 series cable
access routers are equipped with 64- and 256-QAM receivers that require only minimal setup. Configure
the Cisco uBR900 series routers according to DOCSIS practices.
Tip
Maximized signal-to-noise ratio (SNR) estimate optimizes cable interface reliability and service
quality.
Note
SNR estimate for a cable interface installed at the headend should be between 35 and 39 dB.
Before starting this procedure,
•
Connect the Cisco uBR7200 series router to the console.
See the “Console and Auxiliary Port Connection Equipment” section on page 3-16.
•
Set up the console. See Cisco uBR7200 Software Configuration Guide, Chapter 2, at the following
URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cr72scg/cr72cnfg.htm
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About Verifying the Downstream Signal
To verify the downstream signal originating from the Cisco uBR7200 series router:
Step 1
When the Cisco uBR900 series cable access router is operating and you have established an input signal
of between –10 and +10 dBmV on the modem, enter the sh controllers cable-modem 0 command. This
command displays:
•
Signal-to-noise ratio (SNR)
•
Downstream signal frequency
•
Downstream signal modulation scheme (64 QAM or 256 QAM)
Example:
uBR900# show controllers cable-modem 0
Tuner:status=0x00
Rx:tuner_freq 555000000, symbol_rate 5055926, local_freq 11520000
snr_estimate 352(TenthdB), ber_estimate 0, lock_threshold 26000
QAM in lock, FEC in lock, qam_mode QAM_64
This shows a downstream frequency of 555 MHz, 64-QAM downstream and an SNR estimate of 35.2dB.
Note
Use the debug cable mac log verbose and show controllers cable 0 mac state commands when
troubleshooting the cable interface’s initialization sequence and locking on the downstream signal.
Step 2
Scan the output for the value corresponding to the “SNR_estimate” variable. If this value is at least
35 dB, then you have an optimized signal. If the value is less than 34 dB, then you must adjust the
upconverter at the cable headend.
Note
Note
a.
Verify that the line card DS output level is correct (+32 dBmV or +42 dBmV, depending on model).
b.
Make sure that the uBR line card IF input to the upconverter is within an acceptable range (check
the upconverter manufacturer's specifications).
c.
Check the upconverter RF output level. A typical setting is +55 to +58 dBmV.
d.
Make sure that the upconverter RF output center frequency has been set correctly.
When using a GI C6U upconverter, the displayed frequency will be 1.75 MHz below the channel's
actual center frequency.
e.
Make sure that the proper amount of attenuation has been installed between the upconverter RF
output and headend combiner input so that the digitally modulated carrier's average power level is
6 dB to 10 dB below the level of the analog TV channels.
f.
Make sure that the digitally modulated carrier's RF average power level is in the –15 dBmV to
+15 dBmV range at the input to the cable router.
The exact value displayed will vary from cable interface to cable interface; however, the values
collected from measurement to measurement on the same router will be consistent.
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Step 3
If the previous steps do not identify the problem, check the downstream digitally modulated carrier using
a QAM analyzer. Several third-party test equipment manufacturers have these instruments available.
a.
Measure modulation error ratio (MER), which should be 35 dB or greater in the headend.
b.
Check pre- and post-FEC bit error rate (BER). There should be no bit errors in the headend. If bit
errors are observed, one likely cause is sweep transmitter interference.
– Check the sweep transmitter to make sure that adequate guard bands have been programmed
around the digitally modulated carrier.
– Bit errors also may be caused by clipping of the digitally modulated carrier in the upconverter
or other active device, including amplifiers and optical transmitters.
c.
Evaluate the digitally modulated carrier's constellation. Look for evidence of:
– Gain compression
– Phase noise
– I-Q imbalance
– Coherent interference
– Excessive noise
– Clipping
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6
Maintaining the Cisco uBR7200 Series Router
This chapter describes basic maintenance for the Cisco uBR7200 series universal broadband router and
contains the following sections:
•
Online Insertion and Removal, page 6-1
•
Environmental Monitoring and Reporting Functions, page 6-2
•
Flash Memory Card, page 6-7
Online Insertion and Removal
All port adapters and cable interface cards in the Cisco uBR7200 series universal broadband router
support online insertion and removal (OIR). This function allows you to install and replace port adapters
and cable interface cards while the router is operating. In most instances, you do not need to shut down
system power.
Detailed instructions for installing and configuring the Cisco cable interface cards are contained in the
document Cisco uBR7200 Series Cable Interface Line Card Hardware Installation at the following
URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/10494hmc.htm
For detailed instructions about installing and configuring port adapters, refer to the applicable
Cisco uBR7200 series port adapter installation and configuration document at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
Caution
The network processing engine, the I/O controller, and the clock card are system components that
cannot be removed if the universal broadband router is operating. Removing the network processing
engine, the I/O controller, or the clock card (Cisco uBR7246VXR only) while the Cisco uBR7200
router is operating causes the router to shut down or crash, and might damage or destroy memory
files.
Each port adapter and cable interface card has a bus connector that connects it to the routers’s midplane.
Each midplane connector has a set of tiered pins in three lengths. The pins send specific signals to the
system as they make contact with the port adapter or interface card. The system assesses the signals it
receives and the order in which it receives them to determine if a board is being removed or inserted into
the midplane. From these signals, the system determines whether to reinitialize a new interface or shut
down a removed interface. For example, when inserting a port adapter, the longest pins make contact
with the port adapter first, and the shortest pins make contact last. The system recognizes the signals and
the sequence in which it receives them.
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Environmental Monitoring and Reporting Functions
When you remove or insert a port adapter or cable interface card in a Cisco uBR7200 series router, the
midplane pins send signals to notify the system, which then performs as follows:
1.
Rapidly scans the midplane for configuration changes.
2.
Initializes all newly inserted port adapters and cable interface cards, noting any removed interfaces
and placing them in the administratively shutdown state.
3.
Brings all previously configured interfaces on the port adapter or cable interface card back to the
state they were in when they were removed. Any newly inserted interfaces are put in the
administratively shutdown state, as if they were present (but not configured) at boot time. If a similar
port adapter or interface card type is reinserted into a slot, its ports are configured and brought online
up to the port count of the original port adapter or cable interface card.
You can remove and replace a cable interface card or port adapter with the same type of component
without interrupting the system. To replace a cable interface card or port adapter with a different type of
card or port adapter (for example, hot swapping from an Cisco uBR-MC16C to a Cisco uBR-MC16E or
replacing a high-speed serial interface [HSSI] adapter with an ATM adapter), you must copy your startup
configuration to your running configuration on the Cisco uBR7200 series router to enable the interfaces
on the new cable interface card or port adapter.
Environmental Monitoring and Reporting Functions
Environmental monitoring and reporting functions are controlled by the network processing engine and
allow you to maintain normal system operation by identifying and resolving adverse conditions before
loss of operation. The environmental monitoring functions constantly monitor the internal chassis air
temperature and DC supply voltages. Each power supply monitors its own voltage, currents, and
temperature and shuts itself down if it detects a critical condition within the power supply. If conditions
reach shutdown thresholds, the system shuts down to avoid equipment damage from excessive heat. The
reporting functions periodically log the values of measured parameters so that you can retrieve them for
analysis later, and the reporting functions display warnings on the console if any of the monitored
parameters exceed defined thresholds.
Environmental Monitoring
The environmental monitoring functions use the following five levels of status conditions to monitor the
system. Four sensors, two on the network processing engine and two on the I/O controller, monitor the
temperature of the cooling air as it moves through the chassis.
•
Normal—All monitored parameters are within normal tolerances.
•
Warning—The system has exceeded a specified threshold. The system continues to operate, but
Cisco recommends operator action to bring the system back to a normal state.
•
Critical—An out-of-tolerance temperature or voltage condition exists. The system continues to
operate; however, the system is approaching shutdown. Immediate operator action is required.
•
Shutdown—The processor has detected a temperature condition that could result in physical damage
to system components and has disabled DC power to all internal components. Requires immediate
operator action. Before any shutdown, the system logs the status of monitored parameters in
NVRAM so that you can retrieve it later to help determine the cause of the problem. The power
supply repeatedly attempts to restart itself within 90 seconds to clear the temperature condition.
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•
Power supply shutdown—The power supply detected an internal out-of-tolerance overvoltage,
overcurrent, or temperature condition and shut itself down. The power supply repeatedly attempts
to restart itself within 10 seconds to clear the shutdown condition.
Table 6-1 and Table 6-2 list the temperature thresholds for the processor-monitored levels. Table 6-3
lists the DC power thresholds for the normal, warning, and critical (power-supply-monitored) levels.
Table 6-1
Typical Processor-Monitored Temperature Thresholds for the Cisco uBR7223
Parameter
High Warning
High Critical
Shutdown
Chassis inlet
104°F (40°C)
122°F (50°C)
–
Chassis outlet 1
109°F (43°C)
127°F (53°C)
136°F (58°C)
Chassis outlet 2
167°F (75°C)
167°F (75°C)
–
Chassis outlet 3
131°F (55°C)
149°F (65°C)
158°F (70°C)
Table 6-2
Typical Processor-Monitored Temperature Thresholds for the Cisco uBR7246VXR and
Cisco uBR7246
Parameter
High Warning
High Critical
Shutdown
Chassis inlet
104°F (40°C)
122°F (50°C)
–
Chassis outlet 1
109°F (43°C)
127°F (53°C)
136°F (58°C)
Chassis outlet 2
167°F (75°C)
167°F (75°C)
–
Chassis outlet 3
131°F (55°C)
149°F (65°C)
158°F (70°C)
Chassis outlet 4
131°F (55°C)
149°F (65°C)
158°F (70°C)
Chassis outlet 5
131°F (55°C)
149°F (65°C)
158°F (70°C)
Table 6-3
Typical Power Supply-Monitored DC-Voltage Thresholds
Sample Point
Low Critical
Low Warning
High Warning
High Critical
+3.5V
+3.32V
+3.34V
+3.66V
+3.68V
+5.2V
+4.97V
+4.99V
+5.45V
+5.48V
+12.2V
+11.42V
+11.52V
+12.85V
+12.90V
–12.2V
–11.33V
–11.43V
–12.74V
–12.84V
+16.0V
+15.15V
+15.30V
+19.65V
+19.85V
–16.0V
–15.15V
–15.30V
–19.65V
–19.85V
If the air temperature exceeds a defined threshold, the system controller displays warning messages on
the console terminal and, if the temperature exceeds the shutdown threshold, it shuts down the system.
The system stores the present parameter measurements for both temperature and DC voltage in NVRAM
so that you can retrieve them later as a report of the last shutdown parameters.
The power supplies monitor internal power supply temperature and voltages. A power supply is either
within tolerance (normal) or out of tolerance (critical), as shown in Table 6-3. If an internal power supply
temperature or voltage reaches a critical level, the power supply shuts down without any interaction with
the system processor.
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Environmental Monitoring and Reporting Functions
Reporting Functions
The Cisco uBR7200 series router displays warning messages on the console if chassis
interface-monitored parameters exceed a desired threshold. You can also retrieve and display
environmental status reports with the show environment, show environment all, show environment
last, and show environment table commands. Parameters are measured and reporting functions are
updated every 60 seconds. A brief description of each of these commands follows.
Caution
To prevent overheating the chassis, ensure that your system is drawing cool inlet air. Overtemperature
conditions can occur if the system is drawing in the exhaust air of other equipment. Ensure adequate
clearance around the sides of the chassis so that cooling air can flow through the chassis interior
unimpeded and exhaust air exits the chassis and is not drawn into the inlet vent of other devices.
The show environment command display reports the current environmental status of the system. The
report displays parameters that are out of the normal values. No parameters are displayed if the system
status is normal. The example that follows shows the display for a system in which all monitored
parameters are within normal range:
Router# show environment
All measured values are normal
If the environmental status is not normal, the system reports the worst-case status level. Following is an
example overvoltage warning:
Router# show environment
Warning: +3.45 V measured at +3.83 V
The show environment last command retrieves and displays the NVRAM log, which shows the reason
for the last system shutdown (if the shutdown was related to voltage or temperature) and the
environmental status at that time. Air temperature is measured and displayed, and the DC voltage
supplied by the power supply is also displayed.
Following is sample output of the show environment last command for a Cisco uBR7246:
Router# show environment last
Temperature readings:
chassis inlet
previously
chassis outlet 1
previously
chassis outlet 2
previously
chassis outlet 3
previously
chassis outlet 4
previously
chassis outlet 5
previously
measured
measured
measured
measured
measured
measured
at
at
at
at
at
at
23C/73F
26C/78F
32C/89F
41C/105F
21C/69F
21C/69F
Voltage readings:
+3.5 V
+5.2 V
+12.2 V
-12.2 V
+16 V
-16 V
measured
measured
measured
measured
measured
measured
at
at
at
at
at
at
+3.57
+5.16
+12.26
-12.41
+17.01
-17.33
previously
previously
previously
previously
previously
previously
Reason for last shutdown:
power supply
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Note
Because the example above is specific to the Cisco uBR7246, you might notice a difference in the
output for your Cisco uBR7246VXR or Cisco uBR7223.
The show environment table command displays the temperature and voltage thresholds for each
temperature sensor and for each monitored status level, which are related to those thresholds listed in
Table 6-1 on page 6-3, Table 6-2 on page 6-3, and Table 6-3 on page 6-3. The display also lists the
shutdown threshold for the system. You can abbreviate the command to sh env table.
Following is sample output of the show environment table command for a Cisco uBR7246:
Router# show environment table
Sample Point
LowCritical
LowWarning
HighWarning
chassis inlet
40C/104F
chassis outlet 1
43C/109F
chassis outlet 2
75C/167F
chassis outlet 3
55C/131F
chassis outlet 4
55C/131F
chassis outlet 5
55C/131F
+3.5 V
+3.32
+3.34
+3.66
+5.2 V
+4.97
+4.99
+5.45
+12.2 V
+11.42
+11.52
+12.85
-12.2 V
-11.33
-11.43
-12.74
+16 V
+15.15
+15.30
+19.65
-16 V
-15.15
-15.30
-19.65
System shutdown for chassis outlet 1 58C/136F
System shutdown for chassis outlet 3 70C/158F
System shutdown for chassis outlet 4 70C/158F
System shutdown for chassis outlet 5 70C/158F
HighCritical
50C/122F
53C/127F
75C/167F
65C/149F
65C/149F
65C/149F
+3.68
+5.48
+12.90
-12.84
+19.85
-19.85
Note
Temperature ranges and values are subject to change.
Note
Because the example above is specific to the Cisco uBR7246, you might notice a difference in the
output for your Cisco uBR7246VXR or Cisco uBR7223.
The show environment all command displays an extended report that includes temperature readings and
voltage readings. The show environment all command also displays a report showing which power
supply slots are occupied and which are empty.
Following is sample output of the show environment all command for a Cisco uBR7246:
Router# show environment all
Power Supplies:
Power supply 1 is empty.
Power supply 2 is Zytek DC Power Supply. Unit is on.
Temperature
chassis
chassis
chassis
chassis
chassis
readings:
inlet
measured
outlet 1 measured
outlet 2 measured
outlet 3 measured
outlet 4 measured
at
at
at
at
at
23C/73F
25C/77F
32C/89F
41C/105F
46C/114F
Voltage readings:
+3.5 V measured at +3.59 V
+5.2 V measured at +5.22 V
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+12.2 V measured at +12.29
-12.2 V measured at -12.39
+16 V
measured at +15.46
-16 V
measured at -18.29
Note
V
V
V
V
Because the example above is specific to the Cisco uBR7246, you might notice a difference in the
output for your Cisco uBR7246VXR or Cisco uBR7223.
Fan Failures
When the system power is on, the Cisco uBR7200 series router fans should be operational. The system
continues to operate if a fan fails; however, if the air temperature exceeds a defined threshold, the system
controller displays warning messages on the console terminal and, if the temperature exceeds the
shutdown threshold, it shuts down the system.
If the system does shut down because the temperature exceeded the shutdown threshold, the system
displays the following message on the console screen and in the environment display when the system
restarts:
Queued messages:
%ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown
For complete descriptions and instructions for the environmental monitor commands, refer to the
following documents:
Cisco Broadband Cable Reference Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/
Configuration Fundamentals Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/fun_c/
Configuration Fundamentals Command Reference at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_r/
This information is also available on the Documentation CD-ROM or Cisco.com. See the “Obtaining
Documentation” section on page xv for more information.
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Flash Memory Card
Flash Memory Card
This section covers insertion, removal, and formatting of flash memory cards in the Cisco uBR7200
series universal broadband router.
The I/O controller has two Personal Computer Memory Card International Association (PCMCIA) slots
for 16- or 20-MB Type II flash memory cards: slot 0 (lower) and slot 1 (upper). The following sections
describe how to insert or remove a flash memory card in either PCMCIA slot.
Installing a Flash Memory Card
Complete the following steps to install a flash memory card in either PCMCIA slot:
Note
To avoid potential problems when inserting spare flash memory cards in your Cisco uBR7200 series
router, Cisco recommends that you reformat all your flash memory cards on a Cisco uBR7200 series
router running Cisco IOS Release 12.0(5)T1 or later, during your regularly scheduled service times.
The “Reformatting a Flash Memory Card” section on page 6-13 contains instructions that explain
how to reformat a flash memory card.
Step 1
Orient the flash memory card so that its connector end faces the appropriate slot. See Figure 6-1(a).
Step 2
Carefully guide the card into the slot until it mates with the slot’s connector and the eject button for the
slot pops out toward you. See Figure 6-1(b).
Note
Flash memory cards do not insert all the way into the PCMCIA slots; the end of the card protrudes
from the I/O controller faceplate. Do not attempt to force the card past this point.
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Removing a Flash Memory Card
To remove a flash memory card from either PCMCIA slot:
Step 1
Press the ejector button on the slot. See Figure 6-1 (c).
Figure 6-1
Removing a Flash Memory Card
a
SL
D
EN
AB
EC
LE
EJ
T
SL
OT
OT
1
0
b
OT
1
SL
EN
AB
LE
D
EC
T
EJ
SL
OT
0
c
SL
AB
LE
D
EC
EJ
T
SL
OT
1
0
H6437
EN
OT
Step 2
Grasp the card and pull it from the slot.
Step 3
Place the card in an antistatic bag.
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Flash Memory Card
Formatting a New Flash Memory Card
The flash memory card that shipped with your Cisco uBR7200 series universal broadband router
contains the Cisco IOS software image you need to boot your router. In some cases, you might need to
insert a new flash memory card and copy images or back up configuration files onto it. Before you can
use a new flash memory card, you must format it. (Use only Type II PCMCIA flash memory cards
provided by Cisco.)
Note
To avoid potential problems when inserting spare flash memory cards in your Cisco uBR7200 series,
Cisco recommends that you reformat all your flash memory cards on a Cisco uBR7200 series router
running Cisco IOS Release 12.0(5)T1 or later, during your regularly scheduled service times. The
“Reformatting a Flash Memory Card” section on page 6-13 contains instructions that explain how to
reformat a flash memory card.
Caution
The following formatting procedure erases all information on the flash memory card. To prevent the
loss of important data that might be stored on a flash memory card, proceed carefully. If you want to
save the data on a flash memory card, copy the data to a server before you format the card.
Note
The following procedure assumes you have already booted your Cisco uBR7200 series router.
To format a new flash memory card:
Step 1
Using the procedure described in the “Installing a Flash Memory Card” section on page 6-7, insert the
flash memory card into slot 0. (If slot 0 is not available, use slot 1.)
Step 2
To format the flash memory card, use the format slot0: (or format slot1:) command as follows:
Router# format slot0:
All sectors will be erased, proceed? [confirm]
Enter volume id (up to 30 characters): MyNewCard
Formatting sector 1
Format device slot0 completed
Router#
The new flash memory card is now formatted and ready to use.
Tip
For this example, a 16-MB flash memory card was used, and at the line “Formatting sector,” the
system counted the card’s sectors backward from 128 to 1 as it formatted them. For 20-MB flash
memory cards, the system counts backward from 160 to 1.
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Flash Memory Card
For configuration information and descriptions of the commands used in this chapter, refer to the
following documents:
•
Configuration Fundamentals Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/fun_c/
•
Configuration Fundamentals Command Reference at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_r/
Copying a Bootable Image onto a Flash Memory Card
After you have formatted a new flash memory card, you can copy a bootable image onto it. To copy an
image, use the following procedure, which assumes the following:
Note
•
You have an I/O controller with a good image in the onboard flash memory single inline memory
module (SIMM) so that you can start the Cisco uBR7200 series universal broadband router.
•
The bootable image you want to copy to the flash memory card exists on a TFTP server to which
you have access (meaning that you know its name and have connectivity to it), and at least one
interface is available over which you can access this server.
To ensure access to a TFTP server, you must configure at least one network interface on your
Cisco uBR7200 series router. For instructions on using this procedure, refer to the Cisco uBR7200
Series Universal Broadband Router Software Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cr72scg/index.htm
•
You know the filename of the image you want to copy onto the flash memory card.
To copy a bootable file (called new.image in the following examples) onto the flash memory card:
Step 1
Boot the router and allow it to initialize.
Step 2
Insert an unformatted flash memory card and format it using the procedure in the “Formatting a New
Flash Memory Card” section on page 6-9. Then proceed to Step 3.
Note
If you have already formatted a flash memory card, you can use it instead; however, you cannot boot
from a Flash memory card that was formatted on another type of system. You must reformat the card
to use it as a boot source. To avoid potential problems when inserting flash memory cards in your
router, Cisco recommends reformatting all of your flash memory cards on a router running
Cisco IOS Release 12.0(5)T1 or later, during your regularly scheduled service times. The
“Reformatting a Flash Memory Card” section on page 6-13 contains instructions that explain how to
reformat a flash memory card.
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Flash Memory Card
Step 3
Copy the new image (new.image) to the flash memory card and make this image the default boot image.
Then reboot the router using the following series of commands:
Router> enable
Password: <password>
Router# copy tftp:new.image slot0:new.image
20575008 bytes available on device slot0, proceed? [confirm]
address or name of remote host [1.1.1.1]?
loading new.image from 1.1.1.1 (via Ethernet1/0):!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 7799951/15599616 bytes]
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
CCCC
Router#
Router# configure terminal
Router(config)# no boot system
Router(config)# boot system flash slot0:new.image
Router(config)# ^z
Router# copy running-config startup-config
Router# reload
When the system reloads, it boots the new.image file from the flash memory card.
Note
In the preceding example, the exclamation points (!!!) appear as the file is downloaded, and
the “C” characters signify calculation of the checksum, which is a verification that the file
has been correctly downloaded to the flash memory card.
Copying Bootable Images Between Flash Memory Cards
As future releases of Cisco IOS images become available, you will receive these images either as a file
booted from a network server, a file on floppy disk, or a file on a flash memory card.
The following scenario describes how to use a newly released image on a flash memory card in a system
that has an older image on a flash memory card in slot 0 and a default boot image in the onboard flash
memory SIMM.
Note
This scenario assumes that the new image will fit on the flash memory card in slot 0, alongside the
old image.
For this scenario, the filenames are as follows:
•
The new image on the new flash memory card is new.image.
•
The old image on the flash memory card in slot 0 is old.image.
•
The bootable image in onboard flash memory is boot.image.
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Flash Memory Card
You will copy the new image from the new flash memory card onto the flash memory card that contains
the old image.
Not Enough Memory on the Flash Memory Card
If there is not enough available space on the flash memory card do the following:
Step 1
Use the delete command to delete files from the flash memory card to make sufficient room for the new
image; however, do not delete the image.old file.
Step 2
Then use the squeeze command to remove these deleted files from the flash memory card.
Step 3
If, after you have deleted files and used the squeeze command, the two files cannot coexist on the flash
memory card in slot 0,
a.
Remove this card (place it in an antistatic bag and store it in a safe place).
b.
Then insert the new flash memory card (with the file new.image) in slot 0.
c.
Proceed to Step 5 and use the command boot system flash slot0:new.image to designate the file
new.image as the default boot image.
Add a New Image to the Flash Memory Card
Step 1
Boot the Cisco uBR7200 series router. By default, the file boot.image is used.
Step 2
Enable the router as follows:
Router> enable
Password: <password>
Router#
Step 3
Insert the new flash memory card into slot 1.
Step 4
Use the following command to copy the file new.image in slot 1 to the flash memory card in slot 0, only
if there is enough memory space for the two images to coexist. If there is not enough memory space,
proceed to Step 5.
Router# copy slot1:new.image slot0:new.image
Note
Step 5
You can also enter the preceding command as copy slot1:new.image slot0:.
Use the following series of commands to designate the file new.image (which is on the flash memory
card in slot 0) as the default boot image:
Router# configure terminal
Router(config)# no boot system
Router(config)# boot system flash slot0:new.image
Router(config)# ^z
Router# copy running-config startup-config
Router# reload
When the system reloads, it boots the file new.image from the flash memory card in slot 0.
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Flash Memory Card
Reformatting a Flash Memory Card
Depending on the circumstances, you might need to use a flash memory card from another system to
copy images or back up configuration files; however, you cannot boot from a flash memory card that was
formatted on another type of system. You must reformat the card before you can use it as a boot source.
(Use only Type II PCMCIA flash memory cards provided by Cisco.)
Note
To avoid potential problems when inserting spare flash memory cards in your Cisco uBR7200 series
router, Cisco recommends that you reformat all of your flash memory cards on a Cisco uBR7200
series router running Cisco IOS Release 12.0(5)T1 or later, during your regularly scheduled service
times.
Caution
The following formatting procedure erases all information on the flash memory card. To prevent the
loss of important data that might be stored on a flash memory card, proceed carefully. If you want to
save the data on a flash memory card, copy the data to a server before you format the card.
The reformatting procedure assumes the following:
Note
•
You have already booted your Cisco uBR7200 series router.
•
You have access to a TFTP server (meaning that you know its name and have connectivity to it) and
at least one interface is available over which you can access this server or to a secondary flash
memory card.
To ensure access to a TFTP server, you must configure at least one network interface on your
Cisco uBR7200 series router. For instructions on using this procedure, refer to the Cisco uBR7200
Series Universal Broadband Router Software Configuration Guide at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/index.htm
•
You know the filename of the image you want to copy to the TFTP server or onto the secondary flash
memory card.
To reformat a flash memory card:
Step 1
Insert the flash memory card into slot 0. (If slot 0 is not available, use slot 1.) Refer to the “Installing a
Flash Memory Card” section on page 6-7.
Step 2
Copy all the files on the flash memory card to a TFTP server or a secondary flash memory card. The
following example is for copying files to a TFTP server. Refer to the “Copying a Bootable Image onto a
Flash Memory Card” section on page 6-10 for flash memory card examples.
Router> enable
Password: <password>
Router# copy slot0:image.name tftp
Enter destination file name [image.name]: image.name
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
CCCCCCCCCCCC
Address or name of remote host [tftp.server.name]? tftp.server.name
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!
Router#
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Flash Memory Card
Step 3
To reformat the flash memory card, use the format slot0: (or format slot1:) command as follows:
Router# format slot0:
All sectors will be erased, proceed? [confirm]
Enter volume id (up to 30 characters): MyNewCard
Formatting sector 1
Format device slot0 completed
Router#
Step 4
Copy the files you saved to the TFTP server back to the flash memory card as follows:
Router# copy tftp slot0
Enter source filename: image.name
20575008 bytes available on device slot0, proceed? [confirm]
address or name of remote host [tftp.server.name]? tftp.server.name
loading new.image from tftp.server.name (via Ethernet1/0):!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!
[OK - 7799951/15599616 bytes]
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
Router#
The flash memory card is now reformatted and ready to use.
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A P P E N D I X
A
Cisco uBR7200 Series Router Specifications
This appendix provides information on the Cisco uBR7200 series universal broadband router physical
and system specifications.
•
Cisco uBR7223 Physical and System Specifications, page A-1
•
Cisco uBR7246 Physical and System Specifications, page A-3
•
Cisco uBR7246VXR Physical and System Specifications, page A-5
Cisco uBR7223 Physical and System Specifications
Table A-1 lists the Cisco uBR7223 physical specifications, power requirements, and software
compatibility.
Table A-1
Cisco uBR7223 Physical Specifications
Description
Specification
Midplane
Two protocol control information (PCI) buses and one secondary PCI bus with an aggregate
bandwidth of 600 Mbps
Dimensions (H x W x D)
6.70 x 17.38 x 21.25 in. (17.02 x 44.15 x 53.98 cm)
Weight
Chassis fully configured with a network processing engine, I/O controller, 1 port adapter,
2 cable modem cards, 1 power supply, and a fan tray: ~ 75 lb (34.0 kg)
Heat dissipation
700W1 (2388 Btu2), 300W typical
AC-input power
700W maximum, 300W typical
Maximum AC-input voltage 100 to 240 VAC3 wide input with power factor correction
AC-input current rating
7A4 with the chassis fully configured
AC-input cable
18 AWG5 three-wire cable, with a three-lead IEC-320 receptacle on the power supply end, and
a country-dependent plug on the power source end
DC-input voltage rating
–48 VDC6 nominal in North America
–60 VDC nominal in the European Community
DC-input current rating
14A maximum (7.7A typical draw at –48 VDC, 6.2A typical draw at –60 VDC)
DC-input cable
12 AWG (3.91 mm2) recommended minimum, with at least three conductors rated for at least
140°F (60°C)
DC-output power
550W maximum (with a single power supply configuration)
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Appendix A
Cisco uBR7200 Series Router Specifications
Cisco uBR7223 Physical and System Specifications
Table A-1
Cisco uBR7223 Physical Specifications (continued)
Description
Specification
DC voltages supplied
+3.5V, +5.2V, +12.2V, –12.2V, +16V, –16V
Operating Frequency
50/60 Hz
Airflow
~80 cfm7
Temperature
32 to 104°F (0 to 70°C)
–4 to 149°F (–20 to 65°C)
Humidity
10 to 90% noncondensing
Cisco IOS Release
12.2T or later version of Cisco IOS Release 12.2T
12.1(8)EC or later version of Cisco IOS Release 12.1 EC
12.1(7)CX or later version of Cisco IOS Release 12.1 CX
12.1(6)EC1 or later version of Cisco IOS Release 12.1 EC1
12.1(6)EC or later version of Cisco IOS Release 12.1 EC
12.1(5)XM4 or later version of Cisco IOS Release 12.1 XM
12.1(5)T or later version of Cisco IOS Release 12.1 T
12.1(4)CX or later version of Cisco IOS Release 12.1 CX
12.1(3)XQ3 or later version of Cisco IOS Release 12.1 XQ
12.0(16)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(13)SC or later version of Cisco IOS Release 12.0 SC
12.0(12)SC or later version of Cisco IOS Release 12.0 SC
12.0(11)SC or later version of Cisco IOS Release 12.0 SC
12.0(10)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(9)SC or later version of Cisco IOS Release 12.0 SC
12.0(8)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(7)SC or later version of Cisco IOS Release 12.0 SC
12.0(7)XR3 or later version of Cisco IOS Release 12.0 XR
12.0(7)XR2 or later version of Cisco IOS Release 12.0 XR
12.0(6)SC or later version of Cisco IOS Release 12.0 SC
12.0(4) XI or later version of Cisco IOS Release 12.0 XI
12.0(1)T or later version of Cisco IOS Release 12.0 T
11.3(9) NA1 or later version of Cisco IOS Release 11.3 NA
Agency approvals
Safety: UL 1950, CSA 22.2 No. 950, EN60950
EMI: FCC Class A, CSA Class A, EN60555-2, EN55022 Class B, VCCI Class 2,
AS/NRZ 3548 Class A
Immunity: IEC-1000-4-2, IEC-1000-4-3, IEC-1000-4-4, IEC-1000-4-5, IEC-1000-4-6,
IEC-1000-4-11, IEC 1000-3-2
See Chapter , “Regulatory Compliance and Safety Information,” for additional information.
1. W = watts
2. Btu = British thermal units.
3. VAC = volts alternating current.
4. A = ampere.
5. AWG = American Wire Gauge.
6. VDC = volts direct current.
7. cfm = cubic feet per minute.
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Cisco uBR7200 Series Router Specifications
Cisco uBR7246 Physical and System Specifications
Cisco uBR7246 Physical and System Specifications
Table A-2 lists the Cisco uBR7246 physical specifications, power requirements, and software
compatibility.
Table A-2
Cisco uBR7246 Physical Specifications
Description
Specification
Midplane
Two primary PCI buses and one secondary PCI bus with an aggregate bandwidth of 600 Mbps
Dimensions (H x W x D)
10.5 x 17.00 x 21.25 in. (26.67 x 43.18 x 53.98 cm)
Weight
Chassis fully configured with a network processing engine, I/O controller, 2 port adapters,
4 cable modem cards, 2 power supplies, and a fan tray: ~ 100 lb (45.4 kg)
Heat dissipation
800W1 (2730 Btu2)
AC-input power
800W maximum (with either a single or dual power supply configuration)
Maximum AC-input voltage 100 to 240 VAC3 wide input with power factor correction
AC-input current rating
7A4 maximum at 110 VAC and 3.5A maximum at 240 VAC with the chassis fully configured
AC-input cable
18 AWG5 three-wire cable, with a three-lead IEC-320 receptacle on the power supply end, and
a country-dependent plug on the power source end
DC-input voltage rating
–48 VDC6 nominal in North America
–60 VDC nominal in the European Community
DC-input current rating
Not to exceed 13A maximum at –48 VDC (370W/–48 VDC = 7.7A typical draw)
Not to exceed 8A maximum at –60 VDC (370W/–60 VDC = 6.2A typical draw)
DC-input cable
12 AWG (3.91 mm2) recommended minimum, with at least three conductors rated for at least
140°F (60°C)
DC-output power
550W maximum (with either a single or dual power supply configuration)
DC voltages supplied
+3.5V, +5.2V, +12.2V, –12.2V, +16V, –16V
Operating Frequency
50/60 Hz
Airflow
~120 cfm7
Temperature
32 to 104°F (0 to 70°C)
–4 to 149°F (–20 to 65°C)
Humidity
10 to 90% noncondensing
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Appendix A
Cisco uBR7200 Series Router Specifications
Cisco uBR7246 Physical and System Specifications
Table A-2
Cisco uBR7246 Physical Specifications (continued)
Description
Specification
Cisco IOS Release
12.2T or later version of Cisco IOS Release 12.2T
12.1(8)EC or later version of Cisco IOS Release 12.1 EC
12.1(7)CX or later version of Cisco IOS Release 12.1 CX
12.1(6)EC1 or later version of Cisco IOS Release 12.1 EC1
12.1(6)EC or later version of Cisco IOS Release 12.1 EC
12.1(5)XM4 or later version of Cisco IOS Release 12.1 XM
12.1(5)T or later version of Cisco IOS Release 12.1 T
12.1(4)CX or later version of Cisco IOS Release 12.1 CX
12.1(3)XQ3 or later version of Cisco IOS Release 12.1 XQ
12.1(1)T or later version of Cisco IOS Release 12.1 T
12.0(13)SC or later version of Cisco IOS Release 12.0 SC
12.0(12)SC or later version of Cisco IOS Release 12.0 SC
12.0(11)SC or later version of Cisco IOS Release 12.0 SC
12.0(10)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(9)SC or later version of Cisco IOS Release 12.0 SC
12.0(8)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(7)SC or later version of Cisco IOS Release 12.0 SC
12.0(7)XR3 or later version of Cisco IOS Release 12.0 XR
12.0(7)XR2 or later version of Cisco IOS Release 12.0 XR
12.0(6)SC or later version of Cisco IOS Release 12.0 SC
12.0(1)T or later version of Cisco IOS Release 12.0 T
11.3(9)NA1 or later version of Cisco IOS Release 11.3NA
Agency approvals
Safety: UL 1950, CSA 22.2 No. 950, EN60950
EMI: FCC Class A, CSA Class A, EN60555-2, EN55022 Class B, VCCI Class 2,
AS/NRZ 3548 Class A
Immunity: IEC-1000-4-2, IEC-1000-4-3, IEC-1000-4-4, IEC-1000-4-5, IEC-1000-4-6,
IEC-1000-4-11, IEC 1000-3-2
See Appendix G, “Regulatory Compliance and Safety Information,” for additional
information.
1. W = watts
2. Btu = British thermal units.
3. VAC = volts alternating current.
4. A = ampere.
5. AWG = American Wire Gauge.
6. VDC = volts direct current.
7. cfm = cubic feet per minute.
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Cisco uBR7200 Series Router Specifications
Cisco uBR7246VXR Physical and System Specifications
Cisco uBR7246VXR Physical and System Specifications
Table A-3 lists the Cisco uBR7246VXR physical specifications, power requirements, and software
compatibility.
Table A-3
Cisco uBR7246VXR Physical Specifications
Description
Specification
Midplane
Two primary PCI buses and one secondary PCI bus with an aggregate bandwidth of 600 Mbps
Dimensions (H x W x D)
10.5 x 17.00 x 21.25 in. (26.67 x 43.18 x 53.98 cm)
Weight
Chassis fully configured with a network processing engine, I/O controller, 2 port adapters,
4 cable modem cards, a clock card, 2 power supplies, and a fan tray: ~ 100 lb (45.4 kg)
Heat dissipation
800W1 (2730 Btu2)
AC-input power
800W maximum (with either a single or dual power supply configuration)
Maximum AC-input voltage 100 to 240 VAC3 wide input with power factor correction
AC-input current rating
7A4 maximum at 110 VAC and 3.5A maximum at 240 VAC with the chassis fully configured
AC-input cable
18 AWG5 three-wire cable, with a three-lead IEC-320 receptacle on the power supply end, and
a country-dependent plug on the power source end
DC-input voltage rating
–48 VDC6 nominal in North America
–60 VDC nominal in the European Community
DC-input current rating
Not to exceed 13A maximum at –48 VDC (370W/–48 VDC = 7.7A typical draw)
Not to exceed 8A maximum at –60 VDC (370W/–60 VDC = 6.2A typical draw)
DC-input cable
14 AWG (2.08 mm2) recommended minimum, with at least three conductors rated for at least
140°F (60°C)
DC-output power
550W maximum (with either a single or dual power supply configuration)
DC voltages supplied
+3.5V, +5.2V, +12.2V, –12.2V, +16V, –16V
Operating Frequency
50/60 Hz
Airflow
~120 cfm7
Temperature
32 to 104°F (0 to 70°C)
–4 to 149°F (–20 to 65°C)
Humidity
10 to 90% noncondensing
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Appendix A
Cisco uBR7200 Series Router Specifications
Cisco uBR7246VXR Physical and System Specifications
Table A-3
Cisco uBR7246VXR Physical Specifications (continued)
Description
Specification
Cisco IOS Release
12.2T or later version of Cisco IOS Release 12.2T
12.1(8)EC or later version of Cisco IOS Release 12.1 EC
12.1(7)CX or later version of Cisco IOS Release 12.1 CX
12.1(6)EC1 or later version of Cisco IOS Release 12.1 EC1
12.1(6)EC or later version of Cisco IOS Release 12.1 EC
12.1(5)XM4 or later version of Cisco IOS Release 12.1 XM
12.1(5)T or later version of Cisco IOS Release 12.1 T
12.1(4)CX or later version of Cisco IOS Release 12.1 CX
12.1(3)XQ3 or later version of Cisco IOS Release 12.1XQ
12.1(1)T or later version of Cisco IOS Release 12.1 T
12.0(13)SC or later version of Cisco IOS Release 12.0 SC
12.0(12)SC or later version of Cisco IOS Release 12.0 SC
12.0(11)SC or later version of Cisco IOS Release 12.0 SC
12.0(10)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(9)SC or later version of Cisco IOS Release 12.0 SC
12.0(8)SC1 or later version of Cisco IOS Release 12.0 SC1
12.0(7)SC or later version of Cisco IOS Release 12.0 SC
12.0(7)XR3 or later version of Cisco IOS Release 12.0 XR
12.0(7)XR2 or later version of Cisco IOS Release 12.0 XR
12.0(7)T or later version of Cisco IOS Release 12.0 T
Agency approval
Safety: UL 1950, CSA 22.2 No. 950, EN60950
EMI: FCC Class A, CSA Class A, EN60555-2, EN55022 Class B, VCCI Class 2,
AS/NRZ 3548 Class A
Immunity: IEC-1000-4-2, IEC-1000-4-3, IEC-1000-4-4, IEC-1000-4-5, IEC-1000-4-6,
IEC-1000-4-11, IEC 1000-3-2
See Appendix G, “Regulatory Compliance and Safety Information,”for additional information.
1. W = watts
2. Btu = British thermal units.
3. VAC = volts alternating current.
4. A = ampere.
5. AWG = American Wire Gauge.
6. VDC = volts direct current.
7. cfm = cubic feet per minute.
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A P P E N D I X
B
RF Specifications
Information in the following tables is from the DOCSIS and EuroDOCSIS Radio Frequency Interface
Specification, and should be considered minimum recommended performance criteria for reliable data
transmission on cable networks. The full specification may be found at CableLabs’ Website
(http://www.cablemodem.com), and additional Euro-DOCSIS information may be found at tComLabs’
Website (http://www.tcomlabs.com).
NCTA—“NCTA Recommended Practices for Measurements on Cable Television Systems, 2nd
Edition”- National Cable Television Association, Washington DC, revised October 1993
CableLabs1—”Two-Way Cable Television System Characterization” - Cable Television Laboratories,
Inc., April 12, 1995
CableLabs2—Digital Transmission Characterization of Cable Television Systems, Cable Television
Laboratories, Inc. November, 1999
Note
Raw data rate in Tables B-1 and B-2 includes nominal data throughput plus overhead.
Table B-1
Downstream Channel Data Rates
Channel
Modulation Format Bandwidth, MHz
Symbol Rate,
Msym/sec
Raw Data Rate,
Mbps
Nominal Data
Rate, Mbps
QAM-64
6
5.056941
30.34
~27
QAM-256
6
5.360537
42.88
~38
QAM-64
8
6.952
41.71
~37
QAM-256
8
6.952
55.62
~50
Table B-2
Upstream Channel Data Rates
Symbol Rate,
ksym/sec
Channel
Bandwidth,
MHz
QPSK Raw
Data Rate,
Mbps
QPSK Nominal
Data Rate,
Mbps
QAM-16 Raw
Data Rate,
Mbps
QAM-16
Nominal Data
Rate, Mbps
160
0.20
0.32
~0.3
0.64
~0.6
320
0.40
0.64
~0.6
1.28
~1.2
640
0.80
1.28
~1.2
2.56
~2.3
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Appendix B
RF Specifications
DOCSIS 1.0 Transmission Characteristics
Table B-2
Upstream Channel Data Rates (continued)
Symbol Rate,
ksym/sec
Channel
Bandwidth,
MHz
QPSK Raw
Data Rate,
Mbps
QPSK Nominal
Data Rate,
Mbps
QAM-16 Raw
Data Rate,
Mbps
QAM-16
Nominal Data
Rate, Mbps
1280
1.60
2.56
~2.3
5.12
~4.6
2560
3.20
5.12
~4.6
10.24
~9.0
DOCSIS 1.0 Transmission Characteristics
The following tables provide information on the assumed downstream RF channel transmission
characteristics for DOCSIS 1.0.
Downstream RF Channel Transmission Characteristics
Transmission is from the headend combiner to the cable modem input at the customer location.
Measurement methods are defined in NCTA or CableLabs2 documentation.
Go to URL http://www.ncta.com/. Search on “transmission”.
Go to URL http://www.cablelabs.com/.
Table B-3
DOCSIS 1.0 Assumed Downstream RF Channel Transmission Characteristics
Parameter
Value
Frequency range
1
RF channel spacing (design bandwidth)
Transit delay from headend to most distant customer
Cable system normal downstream operating range is from 50
MHz to as high as 860 MHz. However, the values in this table
apply only at frequencies ≥ 88 MHz.
6 MHz
≤ 0.800 msec (typically much less)
Carrier-to-noise ratio in a 6-MHz band (analog video level)
Not less than 35 dB2
Carrier-to-interference ratio for total power (discrete and
broadband ingress signals)
Not less than 35 dB within the design bandwidth
Composite triple beat distortion for analog modulated carriers Not greater than –50 dBc within the design bandwidth
Composite second-order distortion for analog modulated
carriers
Not greater than –50 dBc within the design bandwidth
Cross-modulation level
Not greater than –40 dBc within the design bandwidth
Amplitude ripple
0.5 dB within the design bandwidth
Group delay ripple in the spectrum occupied by the CMTS
75 ns within the design bandwidth
Micro-reflections bound for dominant echo
–10 dBc
–15 dBc
–20 dBc
–30 dBc
Carrier hum modulation3
Not greater than –26 dBc (5%)
Burst noise
Not longer than 25 µsec at a 10-Hz average rate
Signal level slope, 50-750 MHz
16 dB
@ ≤ 0.5 microsecond
@ ≤ 1.0 microsecond
@ ≤ 1.5 microsecond
@ >1.5 microsecond
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Appendix B
RF Specifications
DOCSIS 1.0 Transmission Characteristics
Table B-3
DOCSIS 1.0 Assumed Downstream RF Channel Transmission Characteristics (continued)
Parameter
Value
Seasonal and diurnal signal level variation
8 dB
Maximum analog video carrier level at the cable modem
input, inclusive of above signal level variation
17 dBmV
Lowest analog video carrier level at the cable modem input,
inclusive of above signal level variation
–5 dBmV
1. For measurements above the normal operating frequency band (except hum), impairments are referenced to the highest-frequency NTSC carrier level.
2. This presumes that the digital carrier is operated at analog peak carrier level. When the digital carrier is operated below the analog peak carrier level, the
carrier-to-noise ratio may be less.
3. For hum measurements above the normal downstream operating frequency band, a continuous-wave carrier is sent at the test frequency at the same level
as the highest-frequency NTSC carrier.
Upstream RF Channel Transmission Characteristics
Transmission is from the cable modem output at the customer location to the headend. Measurement
methods are defined in NCTA or CableLabs2 documentation.
Table B-4
DOCSIS 1.0 Assumed Upstream RF Channel Transmission Characteristics
Parameter
Value
Frequency range
5 to 42 MHz edge to edge
Transit delay from the most distant cable modem to the
nearest cable modem or CMTS
≤ 0.800 msec (typically much less)
Carrier-to-noise ratio
Not less than 25 dB
Carrier-to-ingress power (the sum of discrete and broadband Not less than 25 dB1
ingress signals) ratio
Carrier-to-interference (the sum of noise, distortion,
common-path distortion, and cross-modulation) ratio
Not less than 25 dB
Carrier hum modulation
Not greater than –23 dBc (7%)
Burst noise
Not longer than 10 µsec at a 1-kHz average rate for most
cases2, 3
Amplitude ripple
5 to 42 MHz: 0.5 dB/MHz
Group delay ripple
5 to 42 MHz: 200 ns/MHz
Micro-reflections—single echo
–10 dBc @ ≤ 0.5 microsecond
–20 dBc @ ≤ 1.0 microsecond
–30 dBc @ > 1.0 microsecond
Seasonal and diurnal signal level variation
Not greater than 8 dB min to max
1. Ingress avoidance or tolerance techniques may be used to ensure operation in the presence of time varying discrete ingress signals that could be as high
as 0 dBc.(CableLabs1)
2. Amplitude and frequency characteristics sufficiently strong to partially or wholly mask the data carrier.
3. Impulse noise levels more prevalent at lower frequencies (<15 MHz).
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Appendix B
RF Specifications
DOCSIS 1.1 Transmission Characteristics
DOCSIS 1.1 Transmission Characteristics
The following tables provide information on the assumed downstream RF channel transmission
characteristics for DOCSIS 1.1.
Downstream RF Channel Transmission Characteristics
Transmission is from the headend combiner to the cable modem input at the customer location.
Measurement methods are defined in NCTA or CableLabs2 documentation.
Go to URL http://www.ncta.com/. Search on “transmission”.
Go to URL http://www.cablelabs.com/.
Table B-5
DOCSIS 1.1 Assumed Downstream RF Channel Transmission Characteristics
Parameter
Value
Frequency range
Cable system normal downstream operating range is from
50 MHz to as high as 860 MHz. However, the values in this
table apply only at frequencies ≥ 88 MHz.
RF channel spacing (design bandwidth)
6 MHz
Transit delay from headend to most distant customer
≤ 0.800 msec (typically much less)
Carrier-to-noise ratio in a 6-MHz band
Not less than 35 dB1
Carrier-to-composite triple beat distortion ratio
Not less than 41 dB1
Carrier-to-composite second order distortion ratio
Not less than 41 dB1
Carrier-to-cross-modulation ratio
Not less than 41 dB1
Carrier-to-any other discrete interference (ingress)
Not less than 41 dB1
Amplitude ripple
3 dB within the design bandwidth
Group delay ripple in the spectrum occupied by the CMTS
75 ns within the design bandwidth
Micro-reflections bound for dominant echo
–10 dBc
–15 dBc
–20 dBc
–30 dBc
Carrier hum modulation
Not greater than –26 dBc (5%)
Burst noise
Not longer than 25microseconds at a 10-Hz average rate
@ ≤ 0.5 microsecond
@ ≤ 1.0 microsecond
@ ≤ 1.5 microsecond
@ >1.5 microsecond
Maximum analog video carrier level at the cable modem input 17 dBmV
Maximum number of analog carriers
121
1. Measured relative to a QAM signal that is equal to the nominal video level in the plant.
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Appendix B
RF Specifications
DOCSIS 1.1 Transmission Characteristics
Upstream RF Channel Transmission Characteristics
Transmission is from the cable modem output at the customer location to the headend. Measurement
methods are defined in NCTA or CableLabs2 documentation.
Table B-6
DOCSIS 1.1 Assumed Upstream RF Channel Transmission Characteristics
Parameter
Value
Frequency range
5 to 42 MHz edge to edge
Transit delay from the most distant cable modem to the
nearest cable modem or CMTS
≤ 0.800 msec (typically much less)
Carrier-to-interference plus ingress (the sum of noise,
distortion, common-path distortion, and cross-modulation
and the sum of discrete and broadband ingress signals,
impulse noise excluded) ratio
Not less than 25 dB1
Carrier hum modulation
Not greater than –23 dBc (7%)
Burst noise
Not longer than 10 microseconds at a 1-kHz average rate for
most cases2, 3
Amplitude ripple
5 – 42 MHz: 0.5 dB/MHz
Group delay ripple
5 – 42 MHz: 200 ns/MHz
Micro-reflections—single echo
–10 dBc @ ≤ 0.5 microsecond
–20 dBc @ ≤ 1.0 microsecond
–30 dBc @ > 1.0 microsecond
Seasonal and diurnal reverse gain (loss) variation
Not greater than 14 dB min to max
1. Ingress avoidance or tolerance techniques may be used to ensure operation in the presence of time varying discrete ingress signals that could be as high
as 10 dBc. Ratios are guaranteed only within the digital carrier channels.
2. Amplitude and frequency characteristics sufficiently strong to partially or wholly mask the data carrier.
3. Impulse noise levels more prevalent at lower frequencies (<15 MHz).
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Appendix B
RF Specifications
EuroDOCSIS Transmission Characteristics
EuroDOCSIS Transmission Characteristics
The following tables provide information on the assumed RF channel transmission characteristics for
EuroDOCSIS.
Downstream RF Channel Transmission Characteristics
Transmission is from the headend combiner to the cable modem input at the customer location.
Measurement methods are defined in CENELEC 50083-7 documentation.
Table B-7
EuroDOCSIS Assumed Downstream RF Channel Transmission Characteristics for Analog TV and Sound
Signals
Parameter
Value
Frequency range1
Cable system normal downstream operating range is from
47 MHz to as high as 862 MHz. However, the operating range
for data communication is from 108 to 862 MHz. The use of
frequencies between 108 and 136 MHz may be forbidden due
to national regulation with regard to interference with
aeronautical navigation frequencies.
RF channel spacing (design bandwidth)
7/8 MHz, 8 MHz channels are used for data communication
Transit delay from headend to most distant customer
≤ 0.800 msec (typically much less)
Carrier-to-noise ratio in a 8-MHz band (analog video level)
Not less than 44 dB2
Carrier-to-interference ratio for total power (discrete and
broadband ingress signals)
Not less than 52 dB within the design bandwidth
Composite triple beat distortion for analog modulated carriers PAL—Not greater than –57 dBc within the design bandwidth
SECAM—Not greater than –52 dBc within the design
bandwidth.
Composite second order distortion for analog modulated
carriers
PAL—Not greater than –57 dBc within the design bandwidth.
Cross-modulation level
Under consideration
Amplitude ripple
2.5 dB in 8 MHz
Group delay ripple in the spectrum occupied by the CMTS
100 ns over frequency range 0.5 – 4.43 MHz
Micro-reflections bound for dominant echo
–10 dBc
–15 dBc
–20 dBc
–30 dBc
Carrier hum modulation3
Not greater than –46 dBc (5%)
Burst noise
Not longer than 25 microseconds at a 10-Hz average rate
Signal level slope, 85–862 MHz
12 dB
Seasonal and diurnal signal level variation
8 dB
SECAM—Not greater than –52 dBc within the design
bandwidth.
@ ≤ 0.5 microsecond
@ ≤ 1.0 microsecond
@ ≤ 1.5 microsecond
@ > 1.5 microsecond
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Appendix B
RF Specifications
EuroDOCSIS Transmission Characteristics
Table B-7
EuroDOCSIS Assumed Downstream RF Channel Transmission Characteristics for Analog TV and Sound
Signals (continued)
Parameter
Value
Maximum analog video carrier level at the system outlet,
inclusive of above signal level variation
PAL: 77 dBmicroV
Lowest analog video carrier level at the system outlet,
inclusive of above signal level variation
PAL: 60 dBmicroV
SECAM: 74 dBmicroV
SECAM: 57 dBmicroV
1. For measurements shown, the normal downstream operating frequency band (except hum), impairments are referenced to the highest-frequency
PAL/SECAM carrier level.
2. This presumes that the digital carrier is operated at analog peak carrier level. When the digital carrier is operated below the analog peak carrier level, the
carrier-to-noise ratio may be less.
3. For hum measurements above the normal downstream operating frequency band, a continuous-wave carrier is sent to the test frequency at the same level
as the highest-frequency PAL/SECAM carrier.
Upstream RF Channel Transmission Characteristics
Transmission is from the cable modem output at the customer location to the headend.
Table B-8
EuroDOCSIS Assumed Upstream RF Channel Transmission Characteristics
Parameter
Value
Frequency range
5 up to 65 MHz to edge
Transit delay from the most distant cable modem to the
nearest cable modem or cable modem termination system
≤ 0.800 msec (typically much less)
Carrier-to-noise ratio in active channel
Not less than 22 dB
Carrier-to-ingress power (the sum of discrete and broadband Not less than 22 dB1
ingress signals) ratio in active channel
Carrier-to-interference (the sum of noise, distortion,
common-path distortion, and cross-modulation) ratio in
active channel
Not less than 22 dB
Carrier hum modulation
Not greater than –23 dBc (7%)
Burst noise
Not longer than 10 microsecond at a 1 kHz average rate for
most cases2, 3
Amplitude ripple
5 to 65 MHz: 2.5 dB in 2 MHz
Group delay ripple
5 to 65 MHz: 300 ns in 2 MHz
Micro-reflections—single echo
–10 dBc @ ≤ 0.5 microsecond
–20 dBc @ ≤ 1.0 microsecond
–30 dBc @ > 1.0 microsecond
Seasonal and diurnal signal level variation
Not greater than 12 dB min to max
1. Ingress avoidance or tolerance techniques MAY be used to ensure operation in the presence of time varying discrete ingress signals that could be as high
as 0 dBc.
2. Amplitude and frequency characteristics sufficiently strong to partially or wholly mask the data carrier.
3. Impulse noise levels more prevalent at lower frequencies (<15 MHz).
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Appendix B
RF Specifications
Electrical Input and Output
Electrical Input and Output
The information in Table B-9 and Table B-10 on page B-9 relates to both DOCSIS and EuroDOCSIS
specifications.
Table B-9
Electrical Input to the Cable Modem
Parameter
Center frequency
Level range (one channel)
Modulation type
Symbol rate (nominal)
Bandwidth
Value
•
DOCSIS: 91 to 857 MHz ±30 kHz
•
EuroDOCSIS: 112 to 858 MHz ±30 kHz
•
DOCSIS: –15 dBmV to +15 dBmV
•
EuroDOCSIS: 43 to 73 dBmicroV for QAM-64
47 to 77 dBmicroV for QAM-256
QAM-64 and QAM-256
•
DOCSIS: 5.056941 Msym/sec (QAM-64) and 5.360537
Msym/sec (QAM-256)
•
EuroDOCSIS: 6.952 Msym/sec for QAM-64 and
QAM-256
•
DOCSIS: 6 MHz
– 18% square root raised cosine shaping for QAM-64
– 12% square root raised cosine shaping for QAM-256
•
EuroDOCSIS: 8 MHz
– 15% square root raised cosine shaping for both
QAM-64 and QAM-256
Total input power (40 - 900 MHz)
< 30 dBmV (90 dBmicroV)
Input (load) impedance
75 ohms
Input return loss
Connector
•
DOCSIS: > 6 dB (88–860 MHz)
•
EuroDOCSIS: > 6 dB (85–862 MHz)
F connector per ISO-169-24 (common with the output)
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Appendix B
RF Specifications
Electrical Input and Output
Table B-10 Upstream Electrical Output from the Cable Modem
Parameters
Frequency
Level range (one channel)
Value
•
DOCSIS: 5 to 42 MHz edge to edge
•
EuroDOCSIS: 5 to 65 MHz edge to edge
•
QAM-16: +8 to +55 dBmV (+68 to +115 dBmicroV)
•
QPSK: +8 to +58 dBmV (+68 to +118 dBmicroV)
Modulation type
QPSK and QAM-16
Symbol rate (nominal)
160 ksym/sec
320 ksym/sec
640 ksym/sec
1280 ksym/sec
2560 ksym/sec
Bandwidth
200 kHz
400 kHz
800 kHz
1600 kHz
3200 kHz
Output impedance
75 ohms
Output return loss
Connector
•
DOCSIS: >6 dB (5–42 MHz)
•
EuroDOCSIS: >6 dB (5–65 MHz)
F connector per ISO-169-24 (common with the input)
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Appendix B
RF Specifications
Electrical Input and Output
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A P P E N D I X
C
Cable Specifications
This appendix contains cable and cable pinout information for the Cisco uBR7200 series universal
broadband routers.
Note
•
Coaxial Cables, page C-1
•
Console and Auxiliary Port Cables and Pinouts, page C-2
•
Fast Ethernet Port Cables and Pinouts, page C-5
This appendix specifies pinouts only for the pins used. Pins not listed in the tables are not connected.
Coaxial Cables
The coaxial cable used to connect the Cisco uBR7200 series universal broadband routers at the headend
should be very high-quality cable.
Cisco recommends that you use a headend-grade coaxial cable or a quad-shield coaxial cable to connect
the cable modem cards to the hybrid fiber-coaxial (HFC) network. The center conductor must be straight
and extend 1/8 inch (3.2 mm) beyond the end of the connector, and the connector should be securely
crimped to the cable. The following headend cables are recommended:
Note
•
59-series cable (preferred)—20 AWG (0.032 inch/0.81 mm diameter) silver plated, copper-clad,
steel center conductor; bonded foil inner shield; 95 percent braid second shield; nonbonded foil third
shield; 95 percent braid fourth shield.
•
59-series quad shield—20 AWG (0.032 inch/0.81 mm diameter) copper-clad steel center conductor;
bonded foil inner shield; 53 percent braid second shield; nonbonded foil third shield; 34–35 percent
braid fourth shield.
•
6-series quad shield—18 AWG (0.0359 inch/0.91 mm diameter) copper-clad steel center conductor;
bonded foil inner shield; 60 percent braid second shield; nonbonded foil third shield; 40–42 percent
braid fourth shield.
Any of the three of the coaxial cables listed can be used to connect a Cisco cable interface card to the
HFC network; however, the consistent use of 59-series cable is preferred. If you connect a 59-series
cable to a cable interface card that was previously connected using 6-series cable, the difference in
the center connector diameter might cause intermittent connectivity loss.
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Appendix C
Cable Specifications
Console and Auxiliary Port Cables and Pinouts
If you use different types of coaxial cable, the following problems can appear:
Caution
•
Damage to Cisco uBR7200 series cable interface card connectors—Cable interface card connectors
are designed for 59-series or 6-series cable and connectors. Larger cables can damage the
connectors.
•
Poor return loss—High-quality cable and correct connectors help to ensure an optimal return loss of
16 dB or more.
Poorly shielded coaxial cable may result in undesired signal leakage (egress), interference from
over-the-air signals (ingress), or crosstalk between cables in close physical proximity.
Console and Auxiliary Port Cables and Pinouts
The router arrives with a console and auxiliary cable kit, which contains the cable and adapters you need
to connect a console (an ASCII terminal or PC running terminal emulation software) or modem to the
router. The console and auxiliary cable kit includes:
•
RJ-45-to-RJ-45 rollover cable
•
RJ-45-to-DB-9 female data terminal equipment (DTE) adapter labeled TERMINAL
•
RJ-45-to-DB-25 male data communications equipment (DCE) adapter labeled MODEM
Figure C-1 shows the RJ-45 cable connector.
RJ-45 Plug and Receptacle
87654321
RJ-45 connector
H2936
Figure C-1
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Appendix C
Cable Specifications
Console and Auxiliary Port Cables and Pinouts
Identifying an RJ-45 Rollover Cable
You can identify a rollover cable by holding the two ends of the cable next to each other, with the tab at
the back. The wire connected to the pin on the outside of the left hand plug should be the same color as
as the wire connected to the pin on the outside of the right hand plug, as shown in Figure C-2.
Figure C-2
RJ-45 Rollover Cable Identification
Pin 1 and pin 8
should be the
same color
Pin 1
H3824
Pin 8
The colored wires at one connector are in the reverse order at the other connector (reverses pins 1 and 8,
2 and 7, 3 and 6, 4 and 5, 5 and 4, 6 and 3, 7 and 2, 8 and 1).
The wires of the straight-through cable are in the same sequence at both ends of the cable.
Note
If your cable was purchased from Cisco Systems, pin 8 is white.
Console Port Cables and Pinouts
Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL) to
connect the console port to a PC running terminal emulation software. Table C-1 lists the signals and
pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the
RJ-45-to-DB-9 female DTE adapter.
Table C-1
Console Port Signaling and Cabling Using a DB-9 Adapter
Console Port (DTE)
RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-9
Terminal Adapter
Console Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-9 Pin
Signal
8
8
CTS
1
RTS
1
DTR
2
7
6
DSR
TxD
3
6
2
RxD
GND
4
5
5
GND
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Appendix C
Cable Specifications
Console and Auxiliary Port Cables and Pinouts
Table C-1
Console Port Signaling and Cabling Using a DB-9 Adapter (continued)
Console Port (DTE)
RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-9
Terminal Adapter
Console Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-9 Pin
Signal
GND
5
4
5
GND
RxD
6
3
3
TxD
DSR
7
2
4
DTR
CTS
81
1
7
RTS
1. Pin 1 is connected internally to pin 8.
Auxiliary Port Cables and Pinouts
Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter (labeled MODEM) to
connect the auxiliary port to a modem. Table C-2 lists the signals and pinouts for the asynchronous serial
auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter (labeled
MODEM).
Table C-2
Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
AUX Port (DTE)
RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-25
Modem Adapter
Modem (DCE)
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal
RTS
1
8
4
RTS
DTR
2
7
20
DTR
TxD
3
6
3
TxD
GND
4
5
7
GND
GND
5
4
7
GND
RxD
6
3
2
RxD
DSR
7
2
8
DCD
CTS
8
1
5
CTS
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Appendix C
Cable Specifications
Fast Ethernet Port Cables and Pinouts
Fast Ethernet Port Cables and Pinouts
The 10BASE-T/100BASE-TX Fast Ethernet ports support IEEE 802.3 and IEEE 802.3u specifications
for 10-Mbps and 100-Mbps transmission over unshielded twisted-pair (UTP) cables. Each Fast Ethernet
port on the router has an RJ-45 connector to attach to Category 3 or Category 5 UTP cables.
Note
•
Use a Category 3 UTP crossover cable when connecting 10BASE-T port to a hub.
•
Use a Category 3 UTP straight-through cable when connecting to a PC or other Ethernet device.
•
Use a Category 5 UTP crossover cable when connecting 100BASE-TX to a hub.
•
Use a Category 5 UTP straight-through cable when connecting to a PC or other Ethernet device.
Cisco Systems does not supply Category 3 or Category 5 UTP RJ-45 cables; these cables are
available commercially.
Identifying an RJ-45 Crossover Cable
You can identify a crossover cable by comparing the two modular ends of the cable. Hold the cables
side-by-side with the tab at the back. The first (far left) colored wire (pin 1) at one end of the cable is
the third colored wire (pin 3) at the other end of the cable. The second colored wire (pin 2) at one end
of the cable is the sixth colored wire (pin 6) at the other end of the cable. Pin 1 wire is white.
Figure C-3
RJ-45 Crossover Cable Identification
Pin 3
Pin 6
62741
Pin 1
Pin 2
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Appendix C
Cable Specifications
Fast Ethernet Port Cables and Pinouts
Identifying an RJ-45 Straight-Through Cable
You can identify a straight-through cable by comparing the two modular ends of the cable. Hold the
cables side-by-side with the tab at the back. The straight-through cable’s wires are in the same sequence
at both ends of the cable.
Figure C-4
RJ-45 Straight-Through Cable Identification
Pin 1
62740
Pin 1
Note
If your cable was purchased from Cisco Systems, pin 1 is white.
Table C-3 lists the pinouts for the two Fast Ethernet ports.
Table C-3
10BASE-T RJ-45 Connector Pinouts
RJ-45 Pin
Description
1
Tx+
2
Tx–
3
Rx+
6
Rx–
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Appendix C
Cable Specifications
Fiber Optic Cables and Connectors
Fiber Optic Cables and Connectors
The following warnings apply when you work with fiber-optic cables and ports.
Warning
Because invisible radiation may be emitted from the aperture of the port when no fiber cable is
connected, avoid exposure to radiation and do not stare into open apertures.
Warning
Class 1 laser product.
Warning
Class 1 LED product (multimode).
Use a single-mode or multimode fiber-optic interface cable to connect your Cisco uBR7200 router to
another router or switch.
In general, multimode cables are gray or orange, and single-mode cables are yellow.
Note
Single-mode and multimode fiber-optic cables are not available from Cisco Systems.
For SONET or synchronous digital hierarchy (SDH) single-mode and multimode fiber-optic
connections, use one duplex SC-type connector (Figure 5) or two simplex SC-type connectors. (See
Figure 6.)
Duplex SC Cable Connector
Figure 6
Simplex SC Cable Connector
H2399
H2214
Figure 5
Attach either one duplex fiber cable or two simplex fiber cables between the digital pulse terminator
(DPT) port adapter and the device to which the DPT port adapter is connected.
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Appendix C
Cable Specifications
Fiber Optic Cables and Connectors
Observe the receive (RX) and transmit (TX) cable relationship shown in Figure 7.
Figure 7
Attaching Simplex or Duplex Fiber-Optic Cables
SONET/SDH with simplex
or duplex SC connectors
RX TX
Duplex
To network
25168
Simplex
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A P P E N D I X
D
Industry-Standard Wiring Plans
About Wiring Standards
In a traditional cable headend, a large number of wires connect the various components of the headend
system. To organize the many wires, some cable operators use color-coding on the wire jackets based on
signal type, and channel number or program content.
With the advancement of two-way Data-over-Cable services and fiber-optic nodes on the network, the
cable headend wiring has become even more complex:
Note
•
A single upstream cable can now carry signals from multiple services and from many combinations
of fiber-optic nodes—not just one.
•
Each fiber-optic node has different content provided by the digital data services at the same
frequency or channel locations—not separate channels.
•
For proper testing of the network, more downstream test points are required. In addition, upstream
test points of calibrated signal amplitude are becoming essential.
Several third-party companies have available commercially-manufactured equipment that includes
fixed or modular splitters, combiners, and test points for headend RF management.
Many coaxial cable manufacturers offer various jacket color options for headend-grade coaxial cable. To
date, there are no official standards for headend coaxial cable color schemes, although individual cable
companies and multiple system operators (MSOs) have in some instances implemented their own.
The telephone industry has developed standardized color schemes for telephony wiring applications.
Some of these are included here for the benefit of cable operators that have or are deploying voice
services on their cable networks. This appendix also includes standardized color codes for optical fiber.
TIA/EIA Standards Information
A number of Electronic Industries Alliance (EIA) and Telecommunications Industry Association (TIA)
standards are applicable to wiring. The full standards may be purchased on-line from TIA
(http://www.tiaonline.org) or ordered from Global Engineering Documents
(http://www.global.ihs.com/news/br.html) 1-800-854-7179 (U.S. and Canada) or 1-303-397-7956
(Outside the U.S. and Canada). Following is a list of applicable standards:
•
TIA/EIA Telecommunications Building Wiring Standards Collection (complete set available on
CD-ROM or in hard copy)
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Appendix D
Industry-Standard Wiring Plans
Optical Fiber Color Codes
•
TIA/EIA-568A—Commercial Building Telecommunications Cabling Standard
•
TIA/EIA-569A—Commercial Building Standard for Telecommunications Pathways and Spaces
•
TIA/EIA-570A—Residential Telecommunications Cabling Standard
•
TIA/EIA-598—Optical Fiber Cable Color Coding
•
TIA/EIA-606—The Administration Standard for the Telecommunications Infrastructure of
Commercial Buildings
•
TIA/EIA-607—Commercial Building Grounding and Bonding Requirements for
Telecommunications
•
TIA/EIA TSB 72—Centralized Optical Fiber Cabling Guidelines
•
TIA/EIA TSB 75—Additional Horizontal cabling practices for open Offices
•
TIA/EIA TSB 95—Additional performance Guidelines for 4-Pair 100 OHM Category 5 Cabling
In addition, the following relevant standards are available from Global Engineering Documents.
•
FIBS PUB 175—Federal Building Standard for Telecommunication Pathways and Spaces
•
FIBS PUB 176—Residential and Light Commercial Telecommunications Wiring Standard
Optical Fiber Color Codes
The most common color code for optical fiber is based on the 10 colors that are used for plastic insulated
conductor copper cables. Two other colors have been added to bring the optical fiber color code to
twelve. These colors are now standardized under TIE/EIA-598—Optical Fiber Cable Color Coding.
The coloring specified in TIA/EIA–598 are used to identify individual optical fibers when the colors are
applied to the surface of the coated fiber or included directly in the fiber’s secondary coating. Buffered
fibers have colored plastic buffering jackets. The standard colors also may be used to identify units
(groups of fibers or loose tubes) or ribbons on a given cable. As well, units and ribbons may be identified
with printed markings.
Table D-1
TIA/EIA–598 Color Code
Position
Color
1
Blue
2
Orange
3
Green
4
Brown
5
Slate
6
White
7
Red
8
Black
9
Yellow
10
Violet
11
Rose
12
Aqua
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Appendix D
Industry-Standard Wiring Plans
Telephone Wire Color Codes
Telephone Wire Color Codes
To help simplify wire management, AT&T has devised a uniform scheme for dealing with large numbers
of wires for the telephone industry. The scheme uses two color codes—one for large numbers of wires
organized in pairs—and the other for smaller numbers of wires that can also be organized in pairs. Cisco
recommends that you try to implement this wiring scheme whenever possible.
For large numbers of wires, each pair is assigned a two-color code. The colors are selected from two
groups of five, resulting in what is called a binder-group of 25 pairs. The colors used for a group are
white, red, black, yellow, and violet. The colors used for “pair within a group” are blue, orange, green,
brown, and slate.
Each pair must have a unique color combination. One wire within each pair has a solid background of
its group color and stripes of the “pair within a group” color; the second wire has the colors reversed.
Table D-2 lists the sequences. Note that red-brown and red-orange wires may be easily confused.
Table D-2
Telephone Industry 25-Pair Color Code and Pin Numbers
Pair Number
Wire Number
Solid Color
Stripe Color
Pin Number
1
1
White
Blue
26
1
2
Blue
White
1
2
1
White
Orange
27
2
2
Orange
White
2
3
1
White
Green
28
3
2
Green
White
3
4
1
White
Brown
29
4
2
Brown
White
4
5
1
White
Slate
30
5
2
Slate
White
5
6
1
Red
Blue
31
6
2
Blue
Red
6
7
1
Red
Orange
32
7
2
Orange
Red
7
8
1
Red
Green
33
8
2
Green
Red
8
9
1
Red
Brown
34
9
2
Brown
Red
9
10
1
Red
Slate
35
10
2
Slate
Red
10
11
1
Black
Blue
36
11
2
Blue
Black
11
12
1
Black
Orange
37
12
2
Orange
Black
12
13
1
Black
Green
38
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Appendix D
Industry-Standard Wiring Plans
Telephone Wire Color Codes
Table D-2
Telephone Industry 25-Pair Color Code and Pin Numbers (continued)
Pair Number
Wire Number
Solid Color
Stripe Color
Pin Number
13
2
Green
Black
13
14
1
Black
Brown
39
14
2
Brown
Black
14
15
1
Black
Slate
40
15
2
Slate
Black
15
16
1
Yellow
Blue
41
16
2
Blue
Yellow
16
17
1
Yellow
Orange
42
17
2
Orange
Yellow
17
18
1
Yellow
Green
43
18
2
Green
Yellow
18
19
1
Yellow
Brown
44
19
2
Brown
Yellow
19
20
1
Yellow
Slate
45
20
2
Slate
Yellow
20
21
1
Violet
Blue
46
21
2
Blue
Violet
21
22
1
Violet
Orange
47
22
2
Orange
Violet
22
23
1
Violet
Green
48
23
2
Green
Violet
23
24
1
Violet
Brown
49
24
2
Brown
Violet
24
25
1
Violet
Slate
50
25
2
Slate
Violet
25
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Appendix D
Industry-Standard Wiring Plans
Telephone Wire Color Codes
Cables with more than 25 pairs of wires are constructed from 25-pair groups. Very large cables have
other variations generally not encountered inside terminal wire plants.
For small wiring groups, such as wires for an individual telephone station or terminal, you may use a
second color-code scheme. Table D-2 lists this color code and the usual correspondence with the
paired-wire color code. The alternate color code is included, because sometimes the station wire uses
the first three pairs of the standard color code (white-blue, blue-white, and so on), while other times it
uses the six alternate color wires.
Table D-3
Alternate Color-Code Scheme for Smaller Numbers of Wires
Pair Number
Wire Number
Solid Color
Stripe Color
Alternate Color Pin Number
1
1
White
Blue
Green
4
1
2
Blue
White
Red
3
2
1
White
Orange
Black
2
2
2
Orange
White
Yellow
5
3
1
White
Green
White
1
3
2
Green
White
Blue
6
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Appendix D
Industry-Standard Wiring Plans
Telephone Wire Color Codes
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A P P E N D I X
E
Frequency Allocation Tables
This appendix provides information on broadcast and cable television NTSC and PAL/SECAM
standards and frequencies used around the world.
There are three standards for transmitting video. They are defined by the method of encoding color onto
a monochrome signal. The methods are defined as:
•
NTSC—National Television System Committee.
NTSC is the current standard used for analog television in the United States and elsewhere. NTSC
supports color television transmission in a 6-MHz channel bandwidth and has 525 interlaced scan
lines. Two fields are interlaced to make one frame with a frame rate of 29.97 frames per second and
a field rate of 59.94 fields per second. A fraction (approximately 8 percent) of the available
bandwidth is used for signal synchronization between the transmitter and the receiver, giving an
effective resolution of 640x480. The aspect ratio, or ratio of picture width to picture height, is 4:3.
•
PAL—Phase Alternating Line.
PAL is a composite color system similar to NTSC. In PAL, however, the color difference signals
alternate phase at the horizontal line rate. PAL video consists of a 625-line frame, a frame rate of 25
Hz, and a field rate of 50 Hz. As with NTSC, approximately 8 percent of the available bandwidth is
used for synchronization yielding an effective resolution of 768x576. The aspect ratio is 4:3. The
PAL standard and its variants are used primarily in Europe, Asia, Africa, Australia, Brazil, and
Argentina.
•
SECAM—SEquential Couleur Avec Memoire.
SECAM is a color television broadcasting system using 625 picture lines and a 50-hertz (Hz) field
rate, in which the two color-difference signals are transmitted sequentially instead of
simultaneously.
NTSC information is covered in Table E-4 on page E-3 and Table E-5 on page E-8. General
PAL/SECAM information is covered in Table E-6 on page E-10. Use the information in Table E-1,
Table E-2, and Table E-3 on page E-2 to compare analog television standards used around the world.
Check these Web sites for more information.
http://www.blondertongue.com/WebPages/Reference/pdf/CATVref_Section_5_6_r.pdf
http://www.geo-orbit.org/sizepgs/ntscp.html#anchor1016493
http://www.acterna.com/downloads/posters/frequency_chart-acterna.pdf
http://developer.apple.com/technotes/tn/tn1012.html#RTFToC4
http://www.c-cor.net/techdocs.cfm?product=Handbooks#files
http://www.qrf.com/ustvchan.htm
http://www.alkenmrs.com/video/standards.html
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E-1
Appendix E
Frequency Allocation Tables
Standards Comparisons
The following tables (Table E-1, Table E-2, and Table E-3) include data from Recommendation ITU-R
BT.470.6, Conventional Television Systems (1998) and provide a comparison of the different standards.
Table E-1
Analog Television System Baseband Video Parameters
M
N
B, B1, D1, G H
I
D, K
K1
L
Lines per frame
525
625
625
625
625
625
625
625
Field rate (Hz)
Monochrome: 60
Color: 59.94
50
50
50
50
50
50
50
Horizontal rate (Hz)
Monochrome: 15,750
Color: 15,734.264
15,625
15,625
15,625
15,625
15,625
15,625
15,625
Video bandwidth (Mhz)
4.2
4.2
5
5
5.5
6
6
6
Table E-2
Analog Television Chrominance Subcarrier Frequencies
Chrominance subcarrier
frequency (Hz)
M/NTSC
M/PAL
B, B1, D, D1, G, H,
K, N/PAL
I/PAL
B, D, G, H, K, K1,
L/SECAM
N/PAL1
3,579,545
± 10
3,579611.49
± 10
4,433,618.75
±5
fOR =4,406,250
± 2,000
3,582,056.25
±5
4,433,618.75
±1
fOB =4,250,000
± 2,000
1. This value applies to the combination N/PAL used in Argentina.
Table E-3
Analog Television System RF Parameters
M
N
B, B1, G
H
I
D, D1, K
K1
L
Channel bandwidth at RF (MHz)
6
6
B=7
B1, G=8
8
8
8
8
8
Frequency separation between
visual and aural carrier (MHz)
4.5
4.5
5.5
5.5
5.9996
6.5
6.5
6.5
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Appendix E
Frequency Allocation Tables
NTSC Cable Television Channels and Relative Frequencies
Table E-4 provides information on the NTSC frequency map for standard 6-MHz channels in North,
Central, and South America, as well as parts of Asia. Table E-5 on page E-8 lists NTSC assignments for
Japan.
Table E-4
NCTA Cable Television Channels and Relative Frequencies
Channel
No.1
Channel
No., EIA
Bandwidth
(MHz)
Visual
Center
Carrier (MHz) Freq.
Aural Carrier Incrementally Related
(MHz)
Carrier
Harmonically Related
Carrier
Visual
Aural
Visual
Aural
T-7
none
5.75-11.75
7
8.75
11.5
N/A
N/A
N/A
N/A
T-8
none
11.75-17.75
13
14.75
17.5
N/A
N/A
N/A
N/A
T-9
none
17.75-23.75
19
10.75
23.5
N/A
N/A
N/A
N/A
T-10
none
23.75-29.75
25
26.75
29.5
N/A
N/A
N/A
N/A
T-11
none
29.75-35.75
31
32.75
35.5
N/A
N/A
N/A
N/A
T-12
none
35.75-41.75
37
38.75
41.5
N/A
N/A
N/A
N/A
T-13
none
41.75-47.75
43
44.75
47.5
N/A
N/A
N/A
N/A
TV-IF
none
40.0-46.0
45.75
44.0
41.25
N/A
N/A
N/A
N/A
2
2
54.0-60.0
55.25
57.0
59.75
55.2625
59.7625
54.0027
58.5027
3
3
60.0-66.0
61.25
63.0
65.75
61.2625
65.7625
60.0030
64.5030
4
4
66.0-72.0
67.25
69.0
71.75
67.2625
71.7625
66.0033
70.5030
5
5
76.0-82.0
77.25
79.0
81.75
79.2625
83.7625
78.0039
82.5039
6
6
82.0-88.0
83.25
85.0
87.75
85.2625
89.7625
84.0042
88.5042
FM
88.0-108.0
A-5
95
90.0-96.0
91.25
93.0
95.75
91.2625
95.7625
90.0045
94.5045
A-4
96
96.0-102.0
97.25
99.0
101.75
97.2625
101.7625
96.0048
100.5048
A-3
97
106.5051
102.0-108.0
103.25
105.0
107.75
103.2625
107.7625
102.0051
98
2
108.0-114.0
109.25
111.0
113.75
109.2750
113.7750
Cannot lock to comb
A-1
99
2
114.0-120.0
115.25
117.0
119.75
115.2750
119.7750
ref: Refer to FCC
regulations
A
142
120.0-126.0
121.25
123.0
125.75
121.2625
125.7625
120.0060
124.5060
B
15
2
126.0-132.0
127.25
129.0
131.75
127.2625
131.7625
126.0063
130.5063
C
16
2
132.0-138.0
133.25
135.0
137.75
133.2625
137.7625
132.0066
136.5066
D
17
138.0-144.0
139.25
141.0
143.75
139.2625
143.7625
138.0069
142.5069
E
18
144.0-150.0
145.25
147.0
149.75
145.2625
149.7625
144.0072
148.5072
F
19
150.0-156.0
151.25
153.0
155.75
151.2625
155.7625
150.0075
154.5075
G
20
156.0-162.0
157.25
159.0
161.75
157.2625
161.7625
156.0078
160.5078
H
21
162.0-168.0
163.25
165.0
167.75
163.2625
167.7625
162.0081
166.5081
I
22
168.0-174.0
169.25
171.0
173.75
169.2625
173.7625
168.0084
172.5084
7
7
174.0-180.0
175.25
177.0
179.75
175.2625
179.7625
174.0087
178.5087
8
8
180.0-186.0
181.25
183.0
185.75
181.2625
185.7625
180.0090
184.5090
A-2
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E-3
Appendix E
Table E-4
NCTA Cable Television Channels and Relative Frequencies (continued)
Channel
No.1
Channel
No., EIA
Bandwidth
(MHz)
Visual
Center
Carrier (MHz) Freq.
Aural Carrier Incrementally Related
(MHz)
Carrier
Frequency Allocation Tables
Harmonically Related
Carrier
Visual
Aural
Visual
Aural
9
9
186.0-192.0
187.25
189.0
191.75
187.2625
191.7625
186.0093
190.5093
10
10
192.0-198.0
193.25
195.0
197.75
193.2625
197.7625
192.0096
196.5096
11
11
198.0-204.0
199.25
201.0
203.75
199.2625
203.7625
198.0099
202.5099
12
12
204.0-210.0
205.25
207.0
209.75
205.2625
209.7625
204.0102
208.5102
13
13
210.0-216.0
211.25
213.0
215.75
211.2625
215.7625
210.0105
214.5105
J
23
216.0-222.0
217.25
219.0
221.75
217.2625
211.7625
216.0108
220.5108
K
24
2
222.0-228.0
223.25
225.0
227.75
223.2625
227.7625
222.0111
226.5111
L
252
228.0-234.0
229.25
231.0
233.75
229.2625
233.7625
228.0114
232.5114
26
2
234.0-240.0
235.25
237.0
239.75
235.2625
239.7625
234.0117
238.5117
27
2
240.0-246.0
241.25
243.0
245.75
241.2625
245.7625
240.0120
244.5120
28
2
246.0-252.0
247.25
249.0
251.75
247.2625
251.7625
246.0123
250.5123
29
2
252.0-258.0
253.25
255.0
257.75
253.2625
257.7625
252.0126
256.5126
30
2
258.0-264.0
259.25
261.0
263.75
259.2625
263.7625
258.0129
262.5129
31
2
264.0-270.0
265.25
267.0
269.75
265.2625
269.7625
264.0132
268.5132
S
32
2
270.0-276.0
271.25
273.0
275.75
271.2625
275.7625
270.0135
274.5135
T
332
276.0-282.0
277.25
279.0
281.75
277.2625
281.7625
276.0138
270.5138
U
34
2
282.0-288.0
283.25
285.0
287.75
283.2625
287.7625
282.0141
286.5141
35
2
288.0-294.0
289.25
291.0
293.75
289.2625
293.7625
288.0144
292.5144
36
2
294.0-300.0
295.25
297.0
299.75
295.2625
299.7625
294.0147
298.5147
37
2
300.0-306.0
301.25
303.0
305.75
301.2625
305.7625
300.0150
304.5150
38
2
306.0-312.0
307.25
309.0
311.75
307.2625
311.7625
306.0153
310.5153
39
2
312.0-318.0
313.25
315.0
317.75
313.2625
317.7625
312.0156
316.5156
DD
40
2
318.0-324.0
319.25
321.0
323.75
319.2625
323.7625
318.0159
322.5159
EE
412
324.0-330.0
325.25
327.0
329.75
325.2625
329.7625
324.0162
328.5162
FF
42
2
330.0-336.0
331.25
333.0
335.75
331.2625
335.7625
330.0165
334.5165
43
2
336.0-342.0
337.25
339.0
341.75
337.2625
341.7625
336.0168
340.5168
44
2
342.0-348.0
343.25
345.0
347.75
343.2625
347.7625
342.0171
346.5171
45
2
348.0-354.0
349.25
351.0
353.75
349.2625
353.7625
348.0174
352.5174
46
2
354.0-360.0
355.25
357.0
359.75
355.2625
359.7625
354.0177
358.5177
47
2
360.0-366.0
361.25
363.0
365.75
361.2625
365.7625
360.0180
364.5180
LL
48
2
366.0-372.0
367.25
369.0
371.75
367.2625
371.7625
366.0183
370.5183
MM
492
372.0-378.0
373.25
375.0
377.75
373.2625
377.7625
372.0186
376.5186
50
2
378.0-384.0
379.25
381.0
383.75
379.2625
383.7625
378.0189
382.5189
51
2
384.0-390.0
385.25
387.0
389.75
385.2625
389.7625
384.0192
388.5192
52
2
390.0-396.0
391.25
393.0
395.75
391.2625
395.7625
390.0195
394.5195
M
N
O
P
Q
R
V
W
AA
BB
CC
GG
HH
II
JJ
KK
NN
OO
PP
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Appendix E
Frequency Allocation Tables
Table E-4
NCTA Cable Television Channels and Relative Frequencies (continued)
Channel
No.1
Channel
No., EIA
QQ
53
RR
2
Bandwidth
(MHz)
Visual
Center
Carrier (MHz) Freq.
Aural Carrier Incrementally Related
(MHz)
Carrier
Harmonically Related
Carrier
Visual
Aural
Visual
Aural
396.0-402.0
397.25
399.0
401.75
397.2625
401.7625
396.0198
400.5198
54
402.0-408.0
403.25
405.0
407.75
403.2625
407.7625
402.0201
406.5201
SS
55
408.0-414.0
409.25
411.0
413.75
409.2625
413.7625
408.0204
412.5204
TT
56
414.0-420.0
415.25
417.0
419.75
415.2625
419.7625
414.0207
418.5207
UU
57
420.0-426.0
421.25
423.0
425.75
421.2625
425.7625
420.0210
424.5210
VV
58
426.0-432.0
427.25
429.0
431.75
427.2625
431.7625
426.0213
430.5213
WW
59
432.0-438.0
433.25
435.0
437.75
433.2625
437.7625
432.0216
436.5216
XX
60
438.0-444.0
439.25
441.0
443.75
439.2625
443.7625
438.0219
442.5219
YY
61
444.0-450.0
445.25
447.0
449.75
445.2625
449.7625
444.0222
448.5222
ZZ
62
450.0-456.0
451.25
453.0
455.75
451.2625
455.7625
450.0225
454.5225
63
456.0-462.0
457.25
459.0
461.75
457.2625
461.7625
456.0228
460.5228
64
462.0-468.0
463.25
465.0
467.75
463.2625
467.7625
462.0231
466.5231
65
468.0-474.0
469.25
471.0
473.75
469.2625
473.7625
468.0234
472.5234
66
474.0-480.0
475.25
477.0
479.75
475.2625
479.7625
474.0237
478.5237
67
480.0-486.0
481.25
483.0
485.75
481.2625
485.7625
480.0240
484.5240
68
486.0-492.0
487.25
489.0
491.75
487.2625
491.7625
486.0243
490.5243
69
492.0-498.0
493.25
495.0
497.75
493.2625
497.7625
492.0246
496.5246
70
498.0-504.0
499.25
501.0
503.75
499.2625
503.7625
498.0249
502.5249
71
504.0-510.0
505.25
507.0
509.75
505.2625
509.7625
504.0252
508.5252
72
510.0-516.0
511.25
513.0
515.75
511.2625
515.7625
510.0255
514.5255
73
516.0-522.0
517.25
519.0
521.75
517.2625
521.7625
516.0258
520.5258
74
522.0-528.0
523.25
525.0
527.75
523.2625
527.7625
522.0261
526.5261
75
528.0-534.0
529.25
531.0
533.75
529.2625
533.7625
528.0264
532.5264
76
534.0-540.0
535.25
537.0
539.75
535.2625
539.7625
534.0267
538.5267
77
540.0-546.0
541.25
543.0
545.75
541.2625
545.7625
540.0270
544.5270
78
546.0-552.0
547.25
549.0
551.75
547.2625
551.7625
556.0273
550.5273
79
552.0-558.0
553.25
555.0
557.75
553.2625
557.7625
552.0276
556.5276
80
558.0-564.0
559.25
561.0
563.75
559.2625
563.7625
558.0279
562.5279
81
564.0-570.0
565.25
567.0
569.75
565.2625
569.7625
564.0282
568.5282
82
570.0-576.0
571.25
573.0
575.75
571.2625
575.7625
570.0285
574.5285
83
576.0-582.0
577.25
579.0
581.75
577.2625
581.7625
576.0288
580.5288
84
582.0-588.0
583.25
585.0
587.75
583.2625
587.7625
582.0291
586.5291
85
588.0-594.0
589.25
591.0
593.75
589.2625
593.7625
588.0294
592.5294
86
594.0-600.0
595.25
597.0
599.75
595.2625
599.7625
594.0297
598.5297
87
600.0-606.0
601.25
603.0
605.75
601.2625
605.7625
600.0300
604.5300
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
78-10243-03
E-5
Appendix E
Table E-4
NCTA Cable Television Channels and Relative Frequencies (continued)
Channel
No.1
Channel
No., EIA
Bandwidth
(MHz)
Visual
Center
Carrier (MHz) Freq.
Aural Carrier Incrementally Related
(MHz)
Carrier
Frequency Allocation Tables
Harmonically Related
Carrier
Visual
Aural
Visual
Aural
88
606.0-612.0
607.25
609.0
611.75
607.2625
611.7625
606.0303
610.5303
89
612.0-618.0
613.25
615.0
617.75
613.2625
617.7625
612.0306
616.5306
90
618.0-624.0
619.25
621.0
623.75
619.2625
623.7625
618.0309
622.5309
91
624.0-630.0
625.25
627.0
629.75
625.2625
629.7625
624.0312
628.5312
92
630.0-636.0
631.25
633.0
635.75
631.2625
635.7625
630.0315
634.5315
93
636.0-642.0
637.25
639.0
641.75
637.2625
641.7625
636.0318
640.5318
94
642.0-648.0
643.25
645.0
647.75
643.2625
647.7625
642.0321
646.5321
100
648.0-654.0
649.25
651.0
653.75
649.2625
653.7625
648.0324
652.5324
101
654.0-660.0
655.25
657.0
659.75
655.2625
659.7625
654.0327
658.5327
102
660.0-666.0
661.25
663.0
665.75
661.2625
665.7625
660.0330
664.5330
103
666.0-672.0
667.25
669.0
671.75
667.2625
671.7625
666.0333
670.5333
104
672.0-678.0
673.25
675.0
677.75
673.2625
677.7625
672.0336
676.5336
105
678.0-684.0
679.25
681.0
683.75
679.2625
683.7625
678.0339
682.5339
106
684.0-690.0
685.25
687.0
689.75
685.2625
689.7625
684.0342
688.5342
107
690.0-696.0
691.25
693.0
695.75
691.2625
695.7625
690.0345
694.5345
108
696.0-702.0
697.25
699.0
701.75
697.2625
701.7625
696.0348
700.5348
109
702.0-708.0
703.25
705.0
707.75
703.2625
707.7625
702.0351
706.5351
110
708.0-714.0
709.25
711.0
713.75
709.2625
713.7625
708.0354
712.5354
111
714.0-720.0
715.25
717.0
719.75
715.2625
719.7625
714.0357
718.5357
112
720.0-726.0
721.25
723.0
725.75
721.2625
725.7625
720.0360
724.5360
113
726.0-732.0
727.25
729.0
731.75
727.2625
731.7625
726.0363
730.5363
114
732.0-738.0
733.25
735.0
737.75
733.2625
737.7625
732.0366
736.5366
115
738.0-744.0
739.25
741.0
743.75
739.2625
743.7625
738.0369
742.5369
116
744.0-750.0
745.25
747.0
749.75
745.2625
749.7625
744.0372
748.5372
117
750.0-756.0
751.25
753.0
755.75
751.2625
755.7625
750.0375
754.5375
118
756.0-762.0
757.25
759.0
761.75
757.2625
761.7625
756.0378
760.5378
119
762.0-768.0
763.25
765.0
767.75
763.2625
767.7625
762.0381
766.5381
120
768.0-674.0
769.25
771.0
773.75
769.2625
773.7625
768.0384
772.5384
121
774.0-780.0
775.25
777.0
779.75
775.2625
779.7625
774.0387
778.5387
122
780.0-786.0
781.25
783.0
785.75
781.2625
785.7625
780.0390
784.5390
123
786.0-792.0
787.25
789.0
791.75
787.2625
791.7625
786.0393
790.5393
124
792.0-798.0
793.25
795.0
797.75
793.2625
797.7625
792.0396
796.5396
125
798.0-804.0
799.25
801.0
803.75
799.2625
803.7625
798.0399
802.5399
126
804.0-810.0
805.25
807.0
809.75
805.2625
809.7625
804.0402
808.5402
127
810.0-816.0
811.25
813.0
815.75
811.2625
815.7625
810.0405
814.5405
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
E-6
78-10243-03
Appendix E
Frequency Allocation Tables
Table E-4
NCTA Cable Television Channels and Relative Frequencies (continued)
Channel
No.1
Channel
No., EIA
Bandwidth
(MHz)
Visual
Center
Carrier (MHz) Freq.
Aural Carrier Incrementally Related
(MHz)
Carrier
Harmonically Related
Carrier
Visual
Aural
Visual
Aural
128
816.0-822.0
817.25
819.0
821.75
817.2625
821.7625
816.0408
820.5408
129
822.0-828.0
823.25
825.0
827.75
823.2625
827.7625
822.0411
826.5411
130
828.0-834.0
829.25
831.0
833.75
829.2625
833.7625
828.0414
832.5414
131
834.0-840.0
835.25
837.0
839.75
835.2625
839.7625
834.0417
838.5417
132
840.0-846.0
841.25
843.0
845.75
841.2625
845.7625
840.0420
844.5420
133
846.0-852.0
847.25
849.0
851.75
847.2625
851.7625
846.0423
850.5423
134
852.0-858.0
853.25
855.0
857.75
853.2625
857.7625
852.0426
856.5426
135
858.0-864.0
859.25
861.0
863.75
859.2625
863.7625
858.0429
862.5429
136
864.0-870.0
865.25
867.0
869.75
865.2625
869.7625
864.0432
868.5432
137
870.0-876.0
871.25
873.0
875.75
871.2625
875.7625
870.0435
874.5435
138
876.0-882.0
877.25
879.0
881.75
877.2625
881.7625
876.0438
880.5438
139
882.0-888.0
883.25
885.0
887.75
883.2625
887.7625
882.0441
886.5441
140
888.0-894.0
889.25
891.0
893.75
889.2625
893.7625
888.0444
892.5444
141
894.0-900.0
895.25
897.0
899.75
895.2625
899.7625
894.0447
898.5447
142
900.0-906.0
901.25
903.0
905.75
901.2625
905.7625
900.0450
904.5450
143
906.0-912.0
907.25
909.0
911.75
907.2625
911.7625
906.0453
910.5453
144
912.0-918.0
913.25
915.0
917.75
913.2625
917.7625
912.0456
916.5456
145
918.0-924.0
919.25
921.0
923.75
919.2625
923.7625
918.0459
922.5459
146
924.0-930.0
925.25
927.0
929.75
925.2625
929.7625
924.0462
928.5462
147
930.0-936.0
931.25
933.0
935.75
931.2625
935.7625
930.0465
934.5465
148
936.0-942.0
937.25
939.0
941.75
937.2625
941.7625
936.0468
940.5468
149
942.0-948.0
943.25
945.0
947.75
943.2625
947.7625
942.0471
946.5471
150
948.0-954.0
949.25
951.0
953.75
949.2625
953.7625
948.0474
952.5474
151
954.0-960.0
955.25
957.0
959.75
955.2625
959.7625
954.0477
958.5477
152
960.0-966.0
961.25
963.0
965.75
961.2625
965.7625
960.0480
964.5480
153
966.0-972.0
967.25
969.0
971.75
967.2625
971.7625
966.0483
970.5483
154
972.0-978.0
973.25
975.0
977.75
973.2625
977.7625
972.0486
976.5486
155
978.0-984.0
979.25
981.0
983.75
979.2625
983.7625
978.0489
982.5489
156
984.0-990.0
985.25
987.0
989.75
985.2625
989.7625
984.0492
988.5492
157
990.0-996.0
991.25
993.0
995.75
991.2625
995.7625
990.0495
994.5495
158
996.0-1002.0 997.25
999.0
1001.75
997.2625
1001.7625
996.0498
1000.5498
1. This column is for historical channel listings.
2. Aeronautical channels visual carrier frequency tolerance +/–5 kHz.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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E-7
Appendix E
Frequency Allocation Tables
NTSC (M) Cable Television Frequencies for Japan
Japan uses NTSC (M) but has different channel assignments.
Table E-5
Japanese Channel Assignments
Channel Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Center Frequency
Aural Carrier
(MHz)
1
90.0-96.0
91.25
93.00
95.75
2
96.0-102.0
97.25
99.00
101.75
3
102.0-108.0
103.25
105.00
107.75
4
170.0-176.0
171.25
173.00
175.75
5
176.0-182.0
177.25
179.00
181.75
6
182.0-188.0
183.25
185.00
187.75
7
188.0-194.0
189.25
191.00
193.75
8
192.0-198.0
193.25
195.00
197.75
9
198.0-204.0
199.25
201.00
203.75
10
204.0-210.0
205.25
207.00
209.75
11
210.0-216.0
211.25
213.00
215.75
12
216.0-222.0
217.25
219.00
221.75
C13
108.0-114.0
109.25
111.00
113.75
C14
114.0-120.0
115.25
117.00
119.75
C15
120.0-126.0
121.25
123.00
125.75
C16
126.0-132.0
125.25
129.00
131.75
C17
132.0-138.0
133.25
135.00
137.75
C18
138.0-144.0
139.25
141.00
143.75
C19
144.0-150.0
145.25
147.00
149.75
C20
150.0-156.0
151.25
153.00
155.75
C21
156.0-162.0
157.25
159.00
161.75
C22
164.0-170.0
165.25
167.00
169.75
C23
222.0-228.0
223.25
225.00
227.75
C24
230.0-236.0
231.25
233.00
235.75
C25
236.0-242.0
237.25
239.00
241.75
C26
242.0-248.0
243.25
245.00
247.75
C27
248.0-254.0
249.25
251.00
253.75
C28
254.0-258.0
253.25
257.00
257.75
C29
258.0-264.0
259.25
261.00
263.75
C30
264.0-270.0
265.25
267.00
269.75
C31
270.0-276.0
271.25
273.00
275.75
C32
276.0-282.0
277.25
279.00
281.75
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
E-8
78-10243-03
Appendix E
Frequency Allocation Tables
Table E-5
Japanese Channel Assignments (continued)
Channel Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Center Frequency
Aural Carrier
(MHz)
C33
282.0-288.0
283.25
285.00
287.75
C34
288.0-294.0
289.25
291.00
293.75
C35
294.0-300.0
295.25
297.00
299.75
C36
300.0-306.0
301.25
303.00
305.75
C37
306.0-312.0
307.25
309.00
311.75
C38
312.0-318.0
313.25
315.00
317.75
C39
318.0-324.0
319.25
321.00
323.75
C40
324.0-330.0
325.25
327.00
329.75
C41
330.0-336.0
331.25
333.00
335.75
C42
336.0-342.0
337.25
339.00
341.75
C43
342.0-348.0
343.25
345.00
347.75
C44
348.0-354.0
349.25
351.00
353.75
C45
354.0-360.0
355.25
357.00
359.75
C46
360.0-366.0
361.25
363.00
365.75
C47
366.0-372.0
367.25
369.00
371.75
C48
372.0-378.0
373.25
375.00
377.75
C49
378.0-384.0
379.25
381.00
383.75
C50
384.0-390.0
385.25
387.00
389.75
C51
390.0-396.0
391.25
393.00
395.75
C52
396.0-402.0
397.25
399.00
401.75
C53
402.0-408.0
403.25
405.00
407.75
C54
408.0-414.0
409.25
411.00
413.75
C55
414.0-420.0
415.25
417.00
419.75
C56
420.0-426.0
421.25
423.00
425.75
C57
426.0-432.0
427.25
429.00
431.75
C58
432.0-438.0
433.25
435.00
437.75
C59
438.0-444.0
439.25
441.00
443.75
C60
444.0-450.0
445.25
447.00
449.75
C61
450.0-456.0
451.25
453.00
455.75
C62
456.0-462.0
457.25
459.00
461.75
C63
462.0-468.0
463.25
465.00
467.75
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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E-9
Appendix E
Frequency Allocation Tables
PAL/SECAM Cable Television Channels and Relative Frequencies
Table E-6 provides information on the Phase Alternating Line (PAL) and SEquential Couleur Avec
Memoire (SECAM) frequency map for standard 7- and 8-MHz channel bands in Europe.
The FCS (reference subcarrier frequency) for color integration is different for different countries. Also,
the channel and frequency designations are different for different countries. For a summary of the ITU
designations for PAL and SECAM systems and Recommendation ITU-R BT.470.6 standards, refer to
Table E-1, Table E-2, and Table E-3 on page E-2. These tables provide general information that may help
determine frequency allocations for specific countries. Table E-6 is a frequency allocation table for PAL
B and G locations. Also note that some countries use different schemes for VHF and UHF.
More information can be found at the Websites listed on page E-1.
Note
The downstream frequency plan includes all center frequencies between 112 and 858 MHz on
250-kHz increments. It is up to the operator to decide which frequencies to use to meet national and
network requirements
Table E-6
Cable Television Channels and Relative Frequencies, PAL B and G
Channel
Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Aural Carrier
(MHz)
E2
47.0-54.0
48.25
53.75
E3
54.0-61.0
55.25
60.75
E4
61.0-68.0
62.25
67.75
S3
118.0-125.0
119.25
124.75
S4
125.0-132.0
126.25
131.75
S5
132.0-139.0
133.25
138.75
S6
139.0-146.0
140.25
145.75
S7
146.0-153.0
147.25
152.75
S8
153.0-160.0
154.25
159.75
S9
160.0-167.0
161.25
166.75
S10
167.0-174.0
168.25
173.75
E5
174.0-181.0
175.25
180.75
E6
181.0-188.0
182.25
187.75
E7
188.0-195.0
189.25
194.5
E8
195.0-202.0
196.25
201.75
E9
202.0-209.0
203.25
208.75
E10
209.0-216.0
210.25
215.75
E11
216.0-223.0
217.25
222.75
E12
223.0-230.0
224.25
229.75
S11
230.0-237.0
231.25
236.75
S12
237.0-244.0
238.25
243.75
S13
244.0-251.0
245.25
250.75
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
E-10
78-10243-03
Appendix E
Frequency Allocation Tables
Table E-6
Cable Television Channels and Relative Frequencies, PAL B and G (continued)
Channel
Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Aural Carrier
(MHz)
S14
251.0-258.0
252.25
257.75
S15
258.0-265.0
259.25
264.75
S16
265.0-272.0
266.25
271.75
S17
272.0-279.0
273.25
278.75
S18
279.0-286.0
280.25
285.75
S19
286.0-293.0
287.25
289.75
S20
293.0-300.0
294.25
299.75
S21
302.0-310.0
303.25
308.75
S22
310.0-318.0
311.25
316.75
S23
318.0-326.0
319.25
324.75
S24
326.0-334.0
327.25
332.75
S25
334.0-342.0
335.25
340.75
S26
342.0-350.0
343.25
348.75
S27
350.0-358.0
351.25
356.75
S28
358.0-366.0
359.25
364.75
S29
366.0-374.0
367.25
372.05
S30
374.0-382.0
375.25
380.75
S31
382.0-390.0
383.25
388.75
S32
390.0-398.0
391.25
396.75
S33
398.0-406.0
399.25
404.75
S34
406.0-414.0
407.25
412.75
S35
414.0-422.0
415.25
420.75
S36
422.0-430.0
423.25
428.75
S37
430.0-438.0
431.25
436.75
S38
438.0-446.0
439.25
444.75
S39
446.0-454.0
447.25
452.75
S40
454.0-462.0
455.25
460.75
S41
462.0-470.0
463.25
468.75
21
470.0-478.0
471.25
476.75
22
478.0-486.0
479.25
484.75
23
486.0-494.0
487.25
492.7‘5
24
494.0-502.0
495.25
500.75
25
502.0-510.0
503.25
508.75
26
510.0-518.0
511.25
516.75
27
518.0-526.0
519.25
524.75
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Appendix E
Table E-6
Frequency Allocation Tables
Cable Television Channels and Relative Frequencies, PAL B and G (continued)
Channel
Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Aural Carrier
(MHz)
28
526.0-534.0
527.25
532.75
29
534.0-542.0
535.25
540.75
30
542.0-550.0
543.25
548.75
31
550.0-558.0
551.25
556.75
32
558.0-566.0
559.25
564.75
33
566.0-574.0
567.25
572.75
34
574.0-582.0
575.25
580.725
35
582.0-590.0
583.25
588.75
36
590.0-598.0
591.25
596.75
37
598.0-606.0
599.25
604.75
38
606.0-614.0
607.25
612.75
39
614.0-622.0
615.25
620.75
40
622.0-630.0
623.25
628.75
41
630.0-638.0
631.25
636.75
42
638.0-646.0
639.25
644.75
43
646.0-654.0
647.25
652.75
44
654.0-662.0
655.25
660.75
45
662.0-670.0
663.25
668.75
46
670.0-678.0
671.25
676.75
47
678.0-686.0
679.25
684.75
48
686.0-694.0
687.25
692.75
49
694.0-702.0
695.25
700.75
50
702.0-710.0
703.25
708.75
51
710.0-718.0
711.25
716.75
52
718.0-726.0
719.25
724.75
53
726.0-734.0
727.25
732.75
54
734.0-742.0
735.25
740.75
55
742.0-750.0
743.25
748.75
56
750.0-758.0
751.25
756.75
57
758.0-766.0
759.25
764.75
58
766.0-774.0
767.25
772.75
59
774.0-782.0
775.25
780.75
60
782.0-790.0
783.25
788.75
61
790.0-798.0
791.25
796.75
62
798.0-806.0
799.25
804.75
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Appendix E
Frequency Allocation Tables
Table E-6
Cable Television Channels and Relative Frequencies, PAL B and G (continued)
Channel
Number
Bandwidth
(MHz)
Visual Carrier
(MHz)
Aural Carrier
(MHz)
63
806.0-814.0
807.25
812.75
64
814.0-822.0
815.25
820.75
65
822.0-830.0
823.25
828.75
66
830.0-838.0
831.25
836.75
67
838.0-846.0
839.25
844.75
68
846.0-854.0
847.25
852.75
69
854.0-862.0
855.25
860.75
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Appendix E
Frequency Allocation Tables
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A P P E N D I X
F
Manufacturers for Headend Provisioning
Requirements
Table F-1 and Table F-2 provide information on some of the manufacturers, websites, and product
offerings required to prepare and provision a North American cable headend site for two-way data.
Table F-3 and Table F-4 provide information on some of the manufacturers, websites, and product
offerings required to prepare and provision a European cable headend site for two-way data.
North American Channel Plans
Table F-1
Manufacturers for North American Headend Provisioning Requirements
Manufacturer1
Website or Phone Number
Products/Model
http://www.barco.com
Gemini
http://www.gi.com
CDCM2000
Scientific Atlanta
http://www.sciatl.com
Continuum 9860, 9861
Wavecom Electronics
http://www.wavecom.ca
HD4040, MA4040
Eagle Comtronics
http://www.eaglecomtronics.com
Diplex filters
Microwave Filter Company, Inc.
http://www.microwavefilter.com
Diplex filters
PCI Technologies
http://www.pci.com
Diplex filters
Viewsonics
http://www.viewsonics.com
Diplex filters
Viewsonics
http://www.viewsonics.com
Variable attenuators,
Comb generators,
Cisco uBR kit (splitter, diplex filter,
attenuators)
Wavecom Electronics
http://www.wavecom.ca
Cisco uBR kit (splitter, diplex filter,
attenuators)
White Sands Engineering, Inc
http://www.whitesandsengineering.com
Coaxial jumpers
Upconverters
Barco
Motorola
2
Diplex Filters
Coaxial Jumpers, Attenuators, Splitters, and Taps
1 800-jumpers or 602 581-0331
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Appendix F
Manufacturers for Headend Provisioning Requirements
North American Channel Plans
Table F-1
Manufacturers for North American Headend Provisioning Requirements (continued)
Manufacturer1
Website or Phone Number
Products/Model
Agilent3
http://www.tm.agilent.com
Agilent 85960B, 85961B
Symmetricom
http://www.symmetricom.com
TS2500, TS2700, TS3000
GPS Receivers
1. The lead times for upconverters can run from 2 to 18 weeks. Contact the upconverter manufacturers listed above for current information on lead times.
2. Formerly General Instrument
3. Formerly Hewlett-Packard Test and Measurement Division.
In addition, Cisco recommends the following manufacturers, websites, and product offerings for various
measurement devices you will need to prepare and provision a North American cable headend site for
two-way data.
Table F-2
Manufacturers for North American Headend Measurement Devices
Manufacturer
Website or Phone Number
Products/Model
http://www.acterna.com
SDA-5000, w/Option 4B
http://www.tm.agilent.com
Agilent 8594Q, N1776A
http://www.telsey.it
DMA120, DMA122
http://www.sencore.com
QAM-B970
http://www.sunrisetelecom.com/broadband
CR1200R, AT2000RQ
http://www.trilithic.com
860DSP w/Option QA1
Agilent
http://www.tm.agilent.com
Agilent 8591C, N1776A
Tektronics
http://www.tek.com
2715
Sunrise Telecom
http://www.sunrisetelecom.com/broadband
AT2000R
http://www.tm.agilent.com
Agilent 89411A
Digital Signal Level Meters/QAM Analyzers
Acterna
Agilent
Telsey
1
2
Sencore
Sunrise Telecom
3
Trilithic
Spectrum Analyzers
Vector Signal Analyzers
Agilent
1. Formerly Hewlett-Packard Test and Measurement Division.
2. Formerly Tektronics DMA division
3. Formerly Hukk Engineering and Avantron.
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Appendix F
Manufacturers for Headend Provisioning Requirements
European Channel Plans
European Channel Plans
Table F-3
Manufacturers for European Headend Provisioning Requirements
Manufacturer 1
Website or Phone Number
Products/Model
http://www.barco.com
Gemini
http://www.gi.com
CDCM2000
Scientific Atlanta
http://www.sciatl.com
Continuum
Wavecom Electronics
http://www.wavecom.ca
HD4040, MA4040
Eagle Comtronics
http://www.eaglecomtronics.com
Diplex filters
Microwave Filter Company, Inc.
http://www.microwavefilter.com
Diplex filters
PCI Technologies
http://www.pci.com
Diplex filters
Viewsonics
http://www.viewsonics.com
Diplex filters
Viewsonics
http://www.viewsonics.com
Variable attenuators,
Comb generators,
Cisco kit (splitter, diplex filter,
attenuators, coaxial jumpers
Wavecom Electronics
http://www.wavecom.ca
Cisco uBR kit (splitter, diplex filter,
attenuators)
White Sands Engineering, Inc
http://www.whitesandsengineering.com
Coaxial jumpers
Upconverters
Barco
Motorola
2
Diplex Filters
Coaxial Jumpers, Attenuators, Splitters, and Taps
1 800-jumpers or 602 581-0331
GPS Receivers
Agilent3
http://www.tm.agilent.com
Agilent 85960B, 85961B
Symmetricom
http://www.symmetricom.com
TS2500, TS2700, TS3000
1. The lead times for upconverters can run from 2 to 18 weeks. Contact the upconverter manufacturers listed above for current information on lead times.
2. Formerly Gerneral Instrument.
3. Formerly Hewlett-Packard Test and Measurement Division.
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Appendix F
Manufacturers for Headend Provisioning Requirements
European Channel Plans
In addition, Cisco recommends the following manufacturers, websites, and product offerings for various
measurement devices you will need to prepare and provision a European cable headend site for two-way
data.
Table F-4
Manufacturers for European Headend Measurement Devices
Manufacturer
Website or Phone Number
Products/Model
http://www.acterna.com
SDA-5000 w/Option 4B
http://www.tm.agilent.com
Agilent 8594Q, N1776A
http://www.sunrisetelecom.com/broadband
AT2000RQ
http://www.swire.com
TVA 2000-Q
http://www.telsey.it
DMA121, DMA122
http://www.trilithic.com
860DSP w/Option QA1
Agilent
http://www.tm.agilent.com
Agilent 8591C
Tektronix
http://www.tek.com
2715
Sunrise Telecom
http://www.sunrisetelecom.com/broadband
AT2000R
http://www.tm.agilent.com
Agilent 89411A
Digital Signal Level Meters/QAM Analysers
Acterna
Agilent
1
Sunrise Telecom
2
Swires Research
Telsey
3
Trilithic
Spectrum Analyzers
Vector Signal Analyzers
Agilent
1. Formerly Hewlett-Packard Test and Measurement Division.
2. Formerly Hukk Engineering and Avantron.
3. Formerly Tektronics DMA division.
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A P P E N D I X
G
Regulatory Compliance and Safety Information
This appendix provides international agency compliance, safety, and statutory information for the
Cisco uBR7200 series universal broadband router. This appendix also provides translations of the safety
warnings for the Cisco uBR7200 series router. The following sections are included in the appendix:
•
Compliance with U.S. Export Laws and Regulations Regarding Encryption, page G-6
•
Agency Standards for Cisco uBR7200 Series Routers, page G-6
•
Port Adapter Installation Safety Information, page G-8
•
Translated Safety Warnings, page G-10.
Translated Safety Warnings
Translated Safety Warnings
Battery Handling Warning, page G-10
Power Cabling Warning, page G-24
Chassis Lifting Warning, page G-11
Power Supply Disconnection Warning, page G-25
Chassis Warning—Rack-Mounting and Servicing, page G-12
Power Supply Warning, page G-26
Class 1 Laser Product Warning, page G-15
Product Disposal Warning, page G-27
Class 1 LED Product (Multimode), page G-16
Qualified Personnel Warning, page G-28
DC Power Disconnection Warning, page G-16
Radiation from Open Port Aperture, page G-28
DC Power Supply Wiring Warning, page G-18
Restricted Area Warning, page G-29
Disconnect Device Warning, page G-19
SELV Circuit Warning, page G-30
Ground Conductor Warning, page G-20
Stacking the Chassis Warning, page G-32
Ground Connection Warning, page G-21
Supply Circuit Warning, page G-32
Grounded Equipment Warning, page G-21
Telecommunications Lines Warning, page G-33
Installation Warning, page G-22
TN Power Warning, page G-34
Jewelry Removal Warning, page G-23
Two Person Lifting Warning, page G-34
Lightning Activity Warning, page G-24
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Appendix G
Regulatory Compliance and Safety Information
Compliance with U.S. Export Laws and Regulations Regarding Encryption
Compliance with U.S. Export Laws and Regulations Regarding
Encryption
Cisco cable modem cards perform encryption and are regulated for export by the U.S. Government.
Following is specific information regarding compliance with U.S. export laws and regulations for
encryption products:
•
Cisco cable modem cards are not authorized for use by persons located outside the United States and
Canada that do not have export license authority from the U.S. Government.
•
Cisco cable modem cards may not be exported outside the U.S. and Canada either by physical or
electronic means without the prior written approval of the U.S. Government.
•
Persons outside the U.S. and Canada may not reexport, resell, or transfer Cisco cable modem cards
by either physical or electronic means without prior written approval of the U.S. Government.
Agency Standards for Cisco uBR7200 Series Routers
Table G-1 lists the electomagnetic compatibility (EMC) and immunity regulatory compliance standards
and Table G-2 on page G-7 lists safety standards for the Cisco uBR7200 series universal broadband
routers. The Cisco uBR7200 series routers meet or exceed the following national and international EMC,
immunity, and safety standards.
Table G-1
EMC and Immunity Requlatory Standards
Country
EMC and Immunity Standards
United States
47 CFR 15 Subpart B:2000 FCC
Canada
ICES-003 Class B
European Union,
Europe
•
EN55022:1994+A1+A2, CISPR22:1997 Class B
•
EN61000-3-2:2000 (harmonics)
•
EN61000-3-3:1995 (flicker)
•
EN300 386:2000 (EMC for Telecom Networks)
•
EN61000-4-2 (Electro Static Discharge)
•
EN61000-4-3 (radiated susceptibility)
•
EN61000-4-4 (electrical fast transients)
•
EN61000-4-5 (surge)
•
EN61000-4-6 (injected RF swept)
•
EN61000-4-11 (power line voltage)
•
EN50082-1:1997
•
EN50082-1:1992
•
EN55024:1998
•
EN60555-2
Australia
AS/NZS 3548:1995 Class B
Japan
VCCIV-3/2000.04 ClassB
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Appendix G
Regulatory Compliance and Safety Information
Agency Standards for Cisco uBR7200 Series Routers
Table G-1
EMC and Immunity Requlatory Standards (continued)
Country
EMC and Immunity Standards
Taiwan
BSMI (CNS 13438)
China
CISPR 22.97
Table G-2
Safety, and Environmental Standards
Country
Standard
United States
UL 1950, IEC 60950
Canada
CSA 22.2 No.950
European Union, Europe
EN60950:1992+A1+A2+A3+A4
Australia, New Zealand
TS001, AS/NZS 3260
Other
IEC60950:1991+A1+A2+A3+A4
EMC Environmental Conditions for a Product Installed in the European Union
This equipment is intended to operate under the following environmental conditions with respect to
EMC:
1.
A separate defined location under user’s control.
2.
Earthing and bonding shall meet the requirements of ETS 300 253 or CCITT K27.
3.
Where applicable, AC power distribution shall be one of the following types: TN-S and TN-C [as
defined in IEC 364-3].
In addition, if equipment is operated in a domestic environment, interference may occur.
FCC Compliance for Class B Equipment
This port adapter generates and may radiate radio-frequency energy. If it is not installed in accordance
with Cisco installation instructions, it may cause interference with radio and television reception. It has
been tested and found to comply with the limits for a Class B digital device in accordance with the
specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular installation.
You can determine whether your equipment is causing interference by turning it off. If the interference
stops, the equipment you turned off was probably causing the interference. If the equipment causes
interference to radio or television reception, try to correct the interference by using one or more of the
following measures:
•
Turn the television or radio antenna until the interference stops.
•
Move the equipment to one side or the other of the television or radio.
•
Move the equipment farther away from the television or radio.
•
Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is,
make certain the equipment and the television or radio are on circuits controlled by different circuit
breakers or fuses.)
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Appendix G
Regulatory Compliance and Safety Information
Port Adapter Installation Safety Information
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and
negate your authority to operate the product.
VCCI Compliance for Class B Equipment (Japan)
Caution
This is a Class B product based on the standard of the Voluntary Control Council for Interference
from Information Technology Equipment (VCCI). If this is used near a radio or television receiver
in a domestic environment, it may cause radio interference. Install and use the equipment according
to the instruction manual.
European Compliance
The CE marking on the back of the router enclosure signifies that the system meets all relevant European
Directives.
CE Marking
H3145
Figure 1
Port Adapter Compliance Information
Refer to Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers at the
following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/3419pnc6.htm
You can find more port adapter information at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/core/12939paf.htm
Port Adapter Installation Safety Information
Read these safety instructions before installing a port adapter in a Cisco uBR7200 series universal
broadband router. If you have any doubt as to how to safely install a port adapter correctly in a
Cisco uBR7200 series, please contact TAC at the following URL:
http://www.cisco.com/tac
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Appendix G
Regulatory Compliance and Safety Information
Port Adapter Installation Safety Information
Note
Failure to install the port adapter in accordance with these instructions invalidates the agency
approvals for the Cisco uBR7200 series univeresal broadband router.
•
Always disconnect the chassis from the power supply before removing any covers.
•
Always disconnect the chassis from any analog telephone circuits or digital networks (where
applicable) before removing any covers.
•
The chassis should be connected to earth ground during normal operation.
•
Do not work on the system or connect and disconnect cables during a lightning storm.
•
Unless otherwise noted, the port adapter contains safety extra-low voltage (SELV) circuitry. Ensure
that attachments at the interconnection ports of the apparatus are also SELV circuits. (SELV circuits
are designed so that under normal conditions or a fault condition, the voltage that can be drawn is
not hazardous.)
•
The digital network interface cables must be disconnected from digital network port adapters before
removing the port adapters from the chassis. The digital network interface cables must remain
disconnected from the digital network port adapters until after the port adapters are reinstalled in
the chassis. (The host chassis provides the necessary protection for the operator.)
The following operating conditions are required within the European Community:
•
The ports marked “Ethernet,” “10BASE-T,” “TokenRing,” “FDDI,” “Console,” and “AUX” are
SELV circuits. SELV circuits should only be connected to other SELV circuits.
•
The Cisco uBR7200 series is designed for use with an AC power source providing 7A maximum at
100 VAC and 3.5A maximum at 240 VAC, 50/60 Hz, with the chassis fully configured.
•
The Cisco uBR7200 series is designed for use with a DC power source providing 13A maximum at
–48 VDC and 8A maximum at –60 VDC, with the chassis fully configured.
•
Other usage invalidates any approval given to this apparatus if, as a result, it ceases to comply with
EN60950:1992.
•
Except in Australia, the PA-4E1G-75, and PA-4E1G-120 port adapters are designated SELV within
the scope of EN60950:1992. Users are reminded that ports on these port adapters should only be
connected to SELV ports on other equipment in accordance with EN60950 clause 2.3.
•
This customer equipment must be installed and maintained by service personnel as defined by
AS/NZ3260 clause 1.2.14.3 Service Personnel. Incorrect connection of equipment to the General
Purpose Outlet could result in a hazardous situation.
•
Safety requirements are not fulfilled unless the equipment is connected to a wall socket outlet with
protective earth ground.
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Appendix G
Regulatory Compliance and Safety Information
Translated Safety Warnings
Translated Safety Warnings
This section repeats in multiple languages the warnings found in the documentation related to the
Cisco uBR7200 series universal broadband router, such as the Cisco uBR7200 Series Universal
Broadband Router Hardware Installation Guide, the Cisco uBR7200 Series Universal Broadband
Router Software Configuration Guide, and documents for the Cisco uBR7200 series field-replaceable
units.
Battery Handling Warning
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only
with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer’s instructions.
Waarschuwing
Er is ontploffingsgevaar als de batterij verkeerd vervangen wordt. Vervang de batterij slechts
met hetzelfde of een equivalent type dat door de fabrikant aanbevolen is. Gebruikte batterijen
dienen overeenkomstig fabrieksvoorschriften weggeworpen te worden.
Varoitus
Räjähdyksen vaara, jos akku on vaihdettu väärään akkuun. Käytä vaihtamiseen ainoastaan saman- tai vastaavantyyppistä akkua, joka on valmistajan suosittelema. Hävitä käytetyt akut valmistajan ohjeiden mukaan.
Attention
Danger d'explosion si la pile n'est pas remplacée correctement. Ne la remplacer que par une
pile de type semblable ou équivalent, recommandée par le fabricant. Jeter les piles usagées
conformément aux instructions du fabricant.
Warnung
Bei Einsetzen einer falschen Batterie besteht Explosionsgefahr. Ersetzen Sie die Batterie nur
durch den gleichen oder vom Hersteller empfohlenen Batterietyp. Entsorgen Sie die benutzten
Batterien nach den Anweisungen des Herstellers.
Avvertenza
Pericolo di esplosione se la batteria non è installata correttamente. Sostituire solo con una di
tipo uguale o equivalente, consigliata dal produttore. Eliminare le batterie usate secondo le istruzioni del produttore.
Advarsel
Det kan være fare for eksplosjon hvis batteriet skiftes på feil måte. Skift kun med samme eller
tilsvarende type som er anbefalt av produsenten. Kasser brukte batterier i henhold til produsentens instruksjoner.
Aviso
Existe perigo de explosão se a bateria for substituída incorrectamente. Substitua a bateria por
uma bateria igual ou de um tipo equivalente recomendado pelo fabricante. Destrua as baterias
usadas conforme as instruções do fabricante.
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Appendix G
Regulatory Compliance and Safety Information
Translated Safety Warnings
¡Advertencia!
Existe peligro de explosión si la batería se reemplaza de manera incorrecta. Reemplazar la batería exclusivamente con el mismo tipo o el equivalente recomendado por el fabricante. Desechar las baterías gastadas según las instrucciones del fabricante.
Varning!
Explosionsfara vid felaktigt batteribyte. Ersätt endast batteriet med samma batterityp som rekommenderas av tillverkaren eller motsvarande. Följ tillverkarens anvisningar vid kassering av
använda batterier.
Chassis Lifting Warning
Warning
Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift
with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.
To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies or on the interface processors, or by the plastic panels on the front
of the chassis. These handles were not designed to support the weight of the chassis.
Waarschuwing
Er zijn twee mensen nodig om het frame op te tillen. Het frame dient onder de onderste rand vastgegrepen en met beide handen omhooggetild te worden. Om te voorkomen dat u letsel oploopt,
dient u uw rug recht te houden en met behulp van uw benen, niet uw rug, te tillen. Om schade
aan het frame en de onderdelen te voorkomen, mag u nooit proberen om het frame op te tillen
aan de handvatten op de voedingen of op de interface-processors of aan de kunststof panelen
aan de voorkant van het frame. Deze handvatten zijn niet ontworpen om het gewicht van het
frame te dragen.
Varoitus
Asennuspohjan nostamiseen tarvitaan kaksi henkilöä. Ota ote asennuspohjan alareunasta ja
nosta molemmin käsin. Pitäen selkäsi suorana nosta jalkojen (ei selän) avulla, jotta välttäisit
loukkaantumista. Älä yritä nostaa asennuspohjaa virtalähteen tai liitäntäprosessorin kahvoista
tai asennuspohjan etuosan muovipaneeleista, jotta estät asennuspohjan ja rakenneosien vaurioitumisen. Näitä kahvoja ei ole suunniteltu kestämään asennuspohjan painoa.
Attention
Il faut deux personnes pour soulever le châssis. Le saisir par son rebord inférieur et soulever
des deux mains. Pour éviter tout trauma de la région lombaire, garder le dos droit et soulever la
charge en redressant les jambes. Pour éviter d'endommager le châssis et ses composants, ne
jamais tenter de le soulever par les poignées des blocs d'alimentation ou des processeurs d'interface, ni par les panneaux en plastique à l'avant du châssis. Ces poignées ne sont pas prévues
pour supporter le poids du châssis.
Warnung
Zum Anheben des Chassis werden zwei Personen benötigt. Fassen Sie das Chassis unterhalb
der unteren Kante an und heben es mit beiden Händen an. Um Verletzungen zu vermeiden, ist der
Rücken aufrecht zu halten und das Gewicht mit den Beinen, nicht mit dem Rücken, anzuheben.
Um Schäden an Chassis und Bauteilen zu vermeiden, heben Sie das Chassis nie an den Kunststoffabdeckungen vorne am Chassis oder mit den Griffen am Netzgerät oder an den Schnittstellenprozessoren an. Diese Griffe sind nicht so konstruiert, daß sie das Gewicht des Chassis
tragen könnten.
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Avvertenza
Il telaio va sollevato da due persone. Afferrare il telaio al di sotto del bordo inferiore e sollevare
con entrambe le mani. Per evitare infortuni, mantenere la schiena diritta e sollevare il peso con
le gambe, non con la schiena. Per evitare danni al telaio ed ai componenti, non provare mai a
sollevare il telaio tramite le maniglie sugli alimentatori o sui processori di interfaccia oppure
tramite i pannelli in plastica sulla parte anteriore del telaio. Queste maniglie non sono state
progettate per sostenere il peso del telaio.
Advarsel
Det er nødvendig med to personer for å løfte kabinettet. Ta tak i kabinettet under den nedre kanten, og løft med begge hender. Unngå personskade ved å holde ryggen rett og løfte med bena,
ikke ryggen. Unngå skade på kabinettet og komponentene ved å aldri prøve å løfte kabinettet
etter håndtakene på strømforsyningsenhetene, grensesnittprosessorene eller i plastpanelene
foran på kabinettet. Disse håndtakene er ikke beregnet på å tåle vekten av kabinettet.
Aviso
São necessárias duas pessoas para levantar o chassis. Agarre o chassis imediatamente abaixo
da margem inferior, e levante-o com ambas as mãos. Para evitar lesões, mantenha as suas costas direitas e levante o peso com ambas as pernas, sem forçar as costas. Para prevenir danos
no chassis e nos seus componentes, nunca tente levantá-lo pelas asas das unidades abastecedoras de energia, nem pelos processadores de interface, ou pelos painéis plásticos localizados
na frente do chassis. Estas asas não foram criadas para suportar o peso do chassis.
¡Advertencia!
Se necesitan dos personas para levantar el chasis. Sujete el chasis con las dos manos por debajo del borde inferior y levántelo. Para evitar lesiones, mantenga la espalda recta y levántelo
con la fuerza de las piernas y no de la espalda. Para evitar daños al chasis y a sus componentes,
no intente nunca levantar el chasis por las asas de las fuentes de alimentación o de los procesadores de interfase, ni por los paneles de plástico situados en el frontal del chasis. Las asas
no han sido diseñadas para soportar el peso del chasis.
Varning!
Det krävs två personer för att lyfta chassit. Fatta tag i chassit under den nedre kanten och lyft
med båda händerna. För att undvika skador skall du hålla ryggen rak och lyfta med benen, inte
ryggen. Chassit och delarna kan skadas om du försöker lyfta chassit i handtagen på strömförsörjningsenheterna eller gränssnittsprocessorerna, eller i plastpanelerna på chassits framsida.
Handtagen är inte konstruerade för att hålla chassits tyngd.
Chassis Warning—Rack-Mounting and Servicing
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to
ensure your safety:
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
•
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with
the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
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Waarschuwing
Varoitus
Attention
Warnung
Om lichamelijk letsel te voorkomen wanneer u dit toestel in een rek monteert of het daar een
servicebeurt geeft, moet u speciale voorzorgsmaatregelen nemen om ervoor te zorgen dat het
toestel stabiel blijft. De onderstaande richtlijnen worden verstrekt om uw veiligheid te verzekeren:
•
Dit toestel dient onderaan in het rek gemonteerd te worden als het toestel het enige in het rek is.
•
Wanneer u dit toestel in een gedeeltelijk gevuld rek monteert, dient u het rek van onderen naar
boven te laden met het zwaarste onderdeel onderaan in het rek.
•
Als het rek voorzien is van stabiliseringshulpmiddelen, dient u de stabilisatoren te monteren
voordat u het toestel in het rek monteert of het daar een servicebeurt geeft.
Kun laite asetetaan telineeseen tai huolletaan sen ollessa telineessä, on noudatettava erityisiä
varotoimia järjestelmän vakavuuden säilyttämiseksi, jotta vältytään loukkaantumiselta. Noudata seuraavia turvallisuusohjeita:
•
Jos telineessä ei ole muita laitteita, aseta laite telineen alaosaan.
•
Jos laite asetetaan osaksi täytettyyn telineeseen, aloita kuormittaminen sen alaosasta kaikkein raskaimmalla esineellä ja siirry sitten sen yläosaan.
•
Jos telinettä varten on vakaimet, asenna ne ennen laitteen asettamista telineeseen tai sen huoltamista siinä.
Pour éviter toute blessure corporelle pendant les opérations de montage ou de réparation de
cette unité en casier, il convient de prendre des précautions spéciales afin de maintenir la stabilité du système. Les directives ci-dessous sont destinées à assurer la protection du
personnel :
•
Si cette unité constitue la seule unité montée en casier, elle doit être placée dans le bas.
•
Si cette unité est montée dans un casier partiellement rempli, charger le casier de bas en haut en
plaçant l'élément le plus lourd dans le bas.
•
Si le casier est équipé de dispositifs stabilisateurs, installer les stabilisateurs avant de monter ou
de réparer l'unité en casier.
Zur Vermeidung von Körperverletzung beim Anbringen oder Warten dieser Einheit in einem Gestell müssen Sie besondere Vorkehrungen treffen, um sicherzustellen, daß das System stabil
bleibt. Die folgenden Richtlinien sollen zur Gewährleistung Ihrer Sicherheit dienen:
•
Wenn diese Einheit die einzige im Gestell ist, sollte sie unten im Gestell angebracht werden.
•
Bei Anbringung dieser Einheit in einem zum Teil gefüllten Gestell ist das Gestell von unten nach
oben zu laden, wobei das schwerste Bauteil unten im Gestell anzubringen ist.
•
Wird das Gestell mit Stabilisierungszubehör geliefert, sind zuerst die Stabilisatoren zu installieren, bevor Sie die Einheit im Gestell anbringen oder sie warten.
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Avvertenza
Advarsel
Aviso
Per evitare infortuni fisici durante il montaggio o la manutenzione di questa unità in un supporto,
occorre osservare speciali precauzioni per garantire che il sistema rimanga stabile. Le seguenti
direttive vengono fornite per garantire la sicurezza personale:
•
Questa unità deve venire montata sul fondo del supporto, se si tratta dell’unica unità da montare
nel supporto.
•
Quando questa unità viene montata in un supporto parzialmente pieno, caricare il supporto dal
basso all’alto, con il componente più pesante sistemato sul fondo del supporto.
•
Se il supporto è dotato di dispositivi stabilizzanti, installare tali dispositivi prima di montare o di
procedere alla manutenzione dell’unità nel supporto.
Unngå fysiske skader under montering eller reparasjonsarbeid på denne enheten når den befinner seg i et kabinett. Vær nøye med at systemet er stabilt. Følgende retningslinjer er gitt for å
verne om sikkerheten:
•
Denne enheten bør monteres nederst i kabinettet hvis dette er den eneste enheten i kabinettet.
•
Ved montering av denne enheten i et kabinett som er delvis fylt, skal kabinettet lastes fra bunnen
og opp med den tyngste komponenten nederst i kabinettet.
•
Hvis kabinettet er utstyrt med stabiliseringsutstyr, skal stabilisatorene installeres før montering
eller utføring av reparasjonsarbeid på enheten i kabinettet.
Para se prevenir contra danos corporais ao montar ou reparar esta unidade numa estante, deverá tomar precauções especiais para se certificar de que o sistema possui um suporte estável.
As seguintes directrizes ajudá-lo-ão a efectuar o seu trabalho com segurança:
•
Esta unidade deverá ser montada na parte inferior da estante, caso seja esta a única unidade a ser
montada.
•
Ao montar esta unidade numa estante parcialmente ocupada, coloque os itens mais pesados na
parte inferior da estante, arrumando-os de baixo para cima.
•
Se a estante possuir um dispositivo de estabilização, instale-o antes de montar ou reparar a
unidade.
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¡Advertencia!
Varning!
Para evitar lesiones durante el montaje de este equipo sobre un bastidor, o posteriormente
durante su mantenimiento, se debe poner mucho cuidado en que el sistema quede bien estable.
Para garantizar su seguridad, proceda según las siguientes instrucciones:
•
Colocar el equipo en la parte inferior del bastidor, cuando sea la única unidad en el mismo.
•
Cuando este equipo se vaya a instalar en un bastidor parcialmente ocupado, comenzar la instalación desde la parte inferior hacia la superior colocando el equipo más pesado en la parte inferior.
•
Si el bastidor dispone de dispositivos estabilizadores, instalar éstos antes de montar o proceder al
mantenimiento del equipo instalado en el bastidor.
För att undvika kroppsskada när du installerar eller utför underhållsarbete på denna enhet på
en ställning måste du vidta särskilda försiktighetsåtgärder för att försäkra dig om att systemet
står stadigt. Följande riktlinjer ges för att trygga din säkerhet:
•
Om denna enhet är den enda enheten på ställningen skall den installeras längst ned på ställningen.
•
Om denna enhet installeras på en delvis fylld ställning skall ställningen fyllas nedifrån och upp,
med de tyngsta enheterna längst ned på ställningen.
•
Om ställningen är försedd med stabiliseringsdon skall dessa monteras fast innan enheten installeras eller underhålls på ställningen.
Class 1 Laser Product Warning
Warning
Waarschuwing
Varoitus
Class 1 laser product.
Klasse-1 laser produkt.
Luokan 1 lasertuote.
Attention
Produit laser de classe 1.
Warnung
Laserprodukt der Klasse 1.
Avvertenza
Prodotto laser di Classe 1.
Advarsel
Laserprodukt av klasse 1.
Aviso
Produto laser de classe 1.
¡Advertencia!
Varning!
Producto láser Clase I.
Laserprodukt av klass 1.
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Class 1 LED Product (Multimode)
Warning
Waarschuwing
Class 1 LED product (multimode)
Klasse 1 LED-product (multimode)
Varoitus
Luokan 1 valodiodituote (monitoimintoinen)
Attention
Alarme de produit LED Class I (multimode)
Warnung
Class 1 LED-Produktwarnung (Multimode)
Avvertenza
Advarsel
Aviso
¡Advertencia!
Varning!
Avvertenza prodotto LED di Classe 1 (multimodale)
LED-produkt i klasse 1 (multimodus)
Produto de classe 1 com LED (multimodo)
Aviso sobre producto LED de Clase 1 (multimodo)
Lysdiodprodukt av klass 1 (multimod)
DC Power Disconnection Warning
Warning
Before performing any of the following procedures, ensure that power is removed from the DC
circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle
of the circuit breaker in the OFF position.
Waarschuwing
Voordat u een van de onderstaande procedures uitvoert, dient u te controleren of de stroom naar
het gelijkstroom circuit uitgeschakeld is. Om u ervan te verzekeren dat alle stroom UIT is geschakeld, kiest u op het schakelbord de stroomverbreker die het gelijkstroom circuit bedient,
draait de stroomverbreker naar de UIT positie en plakt de schakelaarhendel van de stroomverbreker met plakband in de UIT positie vast.
Varoitus
Varmista, että tasavirtapiirissä ei ole virtaa ennen seuraavien toimenpiteiden suorittamista.
Varmistaaksesi, että virta on KATKAISTU täysin, paikanna tasavirrasta huolehtivassa kojetaulussa sijaitseva suojakytkin, käännä suojakytkin KATKAISTU-asentoon ja teippaa suojakytkimen varsi niin, että se pysyy KATKAISTU-asennossa.
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Attention
Avant de pratiquer l'une quelconque des procédures ci-dessous, vérifier que le circuit en courant continu n'est plus sous tension. Pour en être sûr, localiser le disjoncteur situé sur le panneau de service du circuit en courant continu, placer le disjoncteur en position fermée (OFF) et,
à l'aide d'un ruban adhésif, bloquer la poignée du disjoncteur en position OFF.
Warnung
Vor Ausführung der folgenden Vorgänge ist sicherzustellen, daß die Gleichstromschaltung keinen Strom erhält. Um sicherzustellen, daß sämtlicher Strom abgestellt ist, machen Sie auf der
Schalttafel den Unterbrecher für die Gleichstromschaltung ausfindig, stellen Sie den Unterbrecher auf AUS, und kleben Sie den Schaltergriff des Unterbrechers mit Klebeband in der
AUS-Stellung fest.
Avvertenza
Prima di svolgere una qualsiasi delle procedure seguenti, verificare che il circuito CC non sia
alimentato. Per verificare che tutta l’alimentazione sia scollegata (OFF), individuare l’interruttore automatico sul quadro strumenti che alimenta il circuito CC, mettere l’interruttore in posizione OFF e fissarlo con nastro adesivo in tale posizione.
Advarsel
Før noen av disse prosedyrene utføres, kontroller at strømmen er frakoblet likestrømkretsen.
Sørg for at all strøm er slått AV. Dette gjøres ved å lokalisere strømbryteren på brytertavlen som
betjener likestrømkretsen, slå strømbryteren AV og teipe bryterhåndtaket på strømbryteren i
AV-stilling.
Aviso
Antes de executar um dos seguintes procedimentos, certifique-se que desligou a fonte de alimentação de energia do circuito de corrente contínua. Para se assegurar que toda a corrente
foi DESLIGADA, localize o disjuntor no painel que serve o circuito de corrente contínua e
coloque-o na posição OFF (Desligado), segurando nessa posição a manivela do interruptor do
disjuntor com fita isoladora.
¡Advertencia!
Antes de proceder con los siguientes pasos, comprobar que la alimentación del circuito de corriente continua (CC) esté cortada (OFF). Para asegurarse de que toda la alimentación esté cortada (OFF), localizar el interruptor automático en el panel que alimenta al circuito de corriente
continua, cambiar el interruptor automático a la posición de Apagado (OFF), y sujetar con cinta
la palanca del interruptor automático en posición de Apagado (OFF).
Varning!
Innan du utför någon av följande procedurer måste du kontrollera att strömförsörjningen till likströmskretsen är bruten. Kontrollera att all strömförsörjning är BRUTEN genom att slå AV det
överspänningsskydd som skyddar likströmskretsen och tejpa fast överspänningsskyddets
omkopplare i FRÅN-läget.
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DC Power Supply Wiring Warning
Warning
The illustration shows the DC power supply terminal block. Wire the DC power supply using the
appropriate lugs at the wiring end, as illustrated. The proper wiring sequence is ground to
ground, positive to positive (line to L), and negative to negative (neutral to N). Note that the
ground wire should always be connected first and disconnected last.
Waarschuwing
De figuur toont de aansluitstrip van de gelijkstroomvoeding. Breng de bedrading aan voor de
gelijkstroomvoeding met behulp van de juiste aansluitpunten aan het draadeinde zoals aangegeven. De juiste bedradingsvolgorde is aarde naar aarde, positief naar positief (lijn naar L) en
negatief naar negatief (neutraal naar N). Let op dat de aarddraad altijd het eerst verbonden en
het laatst losgemaakt wordt.
Varoitus
Kuva esittää tasavirran pääterasiaa. Liitä tasavirtalähde johdon avulla käyttäen sopivia kiinnityskorvia johdon päässä kuvan esittämällä tavalla. Oikea kytkentäjärjestys on maajohto maajohtoon, positiivinen positiiviseen (johto L:ään) ja negatiivinen negatiiviseen (nollajohto N:ään).
Ota huomioon, että maajohto on aina yhdistettävä ensin ja irrotettava viimeisenä.
Attention
La figure illustre le bloc de connexion de l'alimentation en courant continu. Câbler l'alimentation en courant continu en fixant les cosses qui conviennent aux extrémités câblées conformément au schéma. La séquence de câblage à suivre est terre-terre, positif-positif (ligne sur L), et
négatif-négatif (neutre sur N). Noter que le fil de masse doit toujours être connecté en premier
et déconnecté en dernier.
Warnung
Die Abbildung zeigt den Terminalblock des Gleichstrom-Netzgeräts. Verdrahten Sie das Gleichstrom-Netzgerät unter Verwendung von geeigneten Kabelschuhen am Verdrahtungsende (siehe
Abbildung). Die richtige Verdrahtungsfolge ist Erde an Erde, positiv an positiv (Leitung an L) und
negativ an negativ (neutral an N). Beachten Sie bitte, daß der Erdungsdraht immer als erster verbunden und als letzter abgetrennt werden sollte.
Avvertenza
L’illustrazione mostra la morsettiera dell alimentatore CC. Cablare l’alimentatore CC usando i
connettori adatti all’estremità del cablaggio, come illustrato. La corretta sequenza di cablaggio
è da massa a massa, da positivo a positivo (da linea ad L) e da negativo a negativo (da neutro a
N). Tenere presente che il filo di massa deve sempre venire collegato per primo e scollegato per
ultimo.
Advarsel
Figuren viser likestrømforsyningsenhetens tilkoplingsterminal. Likestrømforsyningsenheten
tilkoples ved hjelp av passende kabelsko som festes i enden av ledningene, slik som vist i figuren. Riktig tilkoplingssekvens er jord til jord, positiv til positv (linje til L), og negativ til negativ
(nøytral til N). Husk at jordingsledningen alltid bør tilkoples først og frakoples sist.
Aviso
A figura mostra o bloco do terminal de fornecimento de corrente contínua. Ligue o fornecimento
de corrente contínua utilizando as extremidades apropriadas no final do cabo, conforme ilustrado. A sequência correcta de instalação é terra-a-terra, positivo-positivo (linha para L), e negativo-negativo (neutro para N). Note que o fio de terra deverá ser sempre o primeiro a ser ligado,
e o último a ser desligado.
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¡Advertencia!
La figura muestra la caja de bornes de la fuente de alimentación. Cablear la fuente de alimentación de corriente continua, usando las lengüetas de conexión apropiadas, en el extremo del
cable tal como se muestra. Las conexiones deben realizarse en el siguiente orden: tierra con
tierra, positivo con positivo (la línea con la L) y negativo con negativo (el neutro con la N). Tenga
en cuenta que el conductor de tierra siempre tiene que conectarse el primero y desconectarse
el último.
Varning!
Illustrationen visar anslutningsplinten för likströmförsörjningsenheten. Koppla ledningarna till
strömförsörjningsenheten med lämpliga kabelskor i ledningsändarna som bilden visar. Korrekt
kopplingssekvens är jord till jord, positiv till positiv (linje till L) och negativ till negativ (neutral
till N). Observera att jordledningen alltid skall anslutas först och kopplas bort sist.
Disconnect Device Warning
Warning
Waarschuwing
Varoitus
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
Er moet een gemakkelijk toegankelijke, tweepolige stroomverbreker opgenomen zijn in de
vaste bedrading.
Kiinteään johdotukseen on liitettävä kaksinapainen kytkinlaite, johon on helppo päästä käsiksi.
Attention
Un disjoncteur bipolaire facile d’accès doit être intégré dans le câblage fixe.
Warnung
Die feste Verdrahtung muß eine leicht zugängliche, zweipolige Trennvorrichtung enthalten.
Avvertenza
Advarsel
Nei cablaggi fissi va incorporato un sezionatore a due poli facilmente accessibile.
En lett tilgjengelig, topolet frakoblingsenhet må være innebygd i det faste ledningsnettet.
Aviso
Deverá incorporar-se um dispositivo de desconexão de dois pólos de acesso fácil, na instalação
eléctrica fixa.
¡Advertencia!
El cableado fijo debe incorporar un dispositivo de desconexión de dos polos y de acceso fácil.
Varning!
En lättillgänglig tvåpolig frånkopplingsenhet måste ingå i den fasta kopplingen.
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Translated Safety Warnings
Ground Conductor Warning
Warning
Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.
Waarschuwing
De aardingsleiding mag nooit buiten werking gesteld worden en de apparatuur mag nooit bediend worden zonder dat er een op de juiste wijze geïnstalleerde aardingsleiding aanwezig is.
Neem contact op met de bevoegde instantie voor elektrische inspecties of met een elektricien
als u niet zeker weet of voor passende aarding gezorgd is.
Varoitus
Älä koskaan ohita maajohdinta tai käytä laitteita ilman oikein asennettua maajohdinta. Ota
yhteyttä asianmukaiseen sähkötarkastusviranomaiseen tai sähköasentajaan, jos olet epävarma
maadoituksen sopivuudesta.
Attention
Ne jamais rendre inopérant le conducteur de masse ni utiliser l’équipement sans un conducteur
de masse adéquatement installé. En cas de doute sur la mise à la masse appropriée disponible,
s’adresser à l’organisme responsable de la sécurité électrique ou à un électricien.
Warnung
Umgehen Sie auf keinen Fall den Erdungsleiter und nehmen Sie die Geräte nicht in Betrieb,
wenn der Erdungsleiter nicht sachgemäß installiert ist. Wenden Sie sich an die entsprechende
Behörde, die für die Inspektion elektrischer Anlagen zuständig ist, oder an einen Elektriker,
wenn Sie nicht sicher sind, ob der Anschluß ordnungsgemäß geerdet ist.
Avvertenza
Non escludere mai il conduttore di protezione né usare l’apparecchiatura in assenza di un conduttore di protezione installato in modo corretto. Se non si sa con certezza che è disponibile un
collegamento di messa a terra adeguato, esaminare le Norme CEI pertinenti o rivolgersi a un
elettricista qualificato.
Advarsel
Jordingslederen må aldri hindres, og utstyret må aldri brukes uten at en forsvarlig jordingsleder
er installert. Kontakt elektrisitetstilsynet eller en elektriker dersom du er usikker på om riktig
jording er tilgjengelig.
Aviso
Nunca anule o condutor à terra nem opere o equipamento sem ter um condutor à terra adequadamente instalado. Em caso de dúvida em relação ao sistema de ligação à terra, contacte os
serviços locais de inspecção eléctrica ou um electricista qualificado.
¡Advertencia!
No desactive nunca el conductor de tierra ni opere el equipo sin un conductor de tierra instalado correctamente. Póngase en contacto con las autoridades de inspección eléctrica pertinentes o con un electricista, si no está seguro de contar con una toma de tierra adecuada.
Varning!
Koppla aldrig från jordledningen och använd aldrig utrustningen utan en på lämpligt sätt installerad jordledning. Om det föreligger osäkerhet huruvida lämplig jordning finns skall elektrisk
besiktningsauktoritet eller elektriker kontaktas.
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Translated Safety Warnings
Ground Connection Warning
Warning
Waarschuwing
When installing the unit, always make the ground connection first and disconnect it last.
Bij de installatie van het toestel moet de aardverbinding altijd het eerste worden gemaakt en
het laatste worden losgemaakt.
Varoitus
Laitetta asennettaessa on maahan yhdistäminen aina tehtävä ensiksi ja maadoituksen irti kytkeminen viimeiseksi.
Attention
Lors de l’installation de l’appareil, la mise à la terre doit toujours être connectée en premier et
déconnectée en dernier.
Warnung
Der Erdanschluß muß bei der Installation der Einheit immer zuerst hergestellt und zuletzt abgetrennt werden.
Avvertenza
In fase di installazione dell'unità, eseguire sempre per primo il collegamento a massa e disconnetterlo per ultimo.
Advarsel
Aviso
¡Advertencia!
Varning!
Når enheten installeres, må jordledningen alltid tilkobles først og frakobles sist.
Ao instalar a unidade, a ligação à terra deverá ser sempre a primeira a ser ligada, e a última a
ser desligada.
Al instalar el equipo, conectar la tierra la primera y desconectarla la última.
Vid installation av enheten måste jordledningen alltid anslutas först och kopplas bort sist.
Grounded Equipment Warning
Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground
during normal use.
Waarschuwing
Deze apparatuur hoort geaard te worden Zorg dat de host-computer tijdens normaal gebruik met
aarde is verbonden.
Varoitus
Tämä laitteisto on tarkoitettu maadoitettavaksi. Varmista, että isäntälaite on yhdistetty maahan
normaalikäytön aikana.
Attention
Cet équipement doit être relié à la terre. S’assurer que l’appareil hôte est relié à la terre lors de
l’utilisation normale.
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Warnung
Avvertenza
Advarsel
Dieses Gerät muß geerdet werden. Stellen Sie sicher, daß das Host-Gerät während des normalen Betriebs an Erde gelegt ist.
Questa apparecchiatura deve essere collegata a massa. Accertarsi che il dispositivo host sia
collegato alla massa di terra durante il normale utilizzo.
Dette utstyret skal jordes. Forviss deg om vertsterminalen er jordet ved normalt bruk.
Aviso
Este equipamento deverá estar ligado à terra. Certifique-se que o host se encontra ligado à terra
durante a sua utilização normal.
¡Advertencia!
Este equipo debe conectarse a tierra. Asegurarse de que el equipo principal esté conectado a
tierra durante el uso normal.
Varning!
Denna utrustning är avsedd att jordas. Se till att värdenheten är jordad vid normal användning.
Installation Warning
Warning
Waarschuwing
Varoitus
Read the installation instructions before you connect the system to its power source.
Raadpleeg de installatie-aanwijzingen voordat u het systeem met de voeding verbindt.
Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen.
Attention
Avant de brancher le système sur la source d'alimentation, consulter les directives d'installation.
Warnung
Lesen Sie die Installationsanweisungen, bevor Sie das System an die Stromquelle anschließen.
Avvertenza
Advarsel
Aviso
Consultare le istruzioni di installazione prima di collegare il sistema all’alimentatore.
Les installasjonsinstruksjonene før systemet kobles til strømkilden.
Leia as instruções de instalação antes de ligar o sistema à sua fonte de energia.
¡Advertencia!
Ver las instrucciones de instalación antes de conectar el sistema a la red de alimentación.
Varning!
Läs installationsanvisningarna innan du kopplar systemet till dess strömförsörjningsenhet.
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Jewelry Removal Warning
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and
can cause serious burns or weld the metal object to the terminals.
Waarschuwing
Alvorens aan apparatuur te werken die met elektrische leidingen is verbonden, sieraden (inclusief ringen, kettingen en horloges) verwijderen. Metalen voorwerpen worden warm wanneer
ze met stroom en aarde zijn verbonden, en kunnen ernstige brandwonden veroorzaken of het
metalen voorwerp aan de aansluitklemmen lassen.
Varoitus
Ennen kuin työskentelet voimavirtajohtoihin kytkettyjen laitteiden parissa, ota pois kaikki korut
(sormukset, kaulakorut ja kellot mukaan lukien). Metalliesineet kuumenevat, kun ne ovat yhteydessä sähkövirran ja maan kanssa, ja ne voivat aiheuttaa vakavia palovammoja tai hitsata metalliesineet kiinni liitäntänapoihin.
Attention
Avant d’accéder à cet équipement connecté aux lignes électriques, ôter tout bijou (anneaux,
colliers et montres compris). Lorsqu’ils sont branchés à l’alimentation et reliés à la terre, les
objets métalliques chauffent, ce qui peut provoquer des blessures graves ou souder l’objet
métallique aux bornes.
Warnung
Vor der Arbeit an Geräten, die an das Netz angeschlossen sind, jeglichen Schmuck (einschließlich Ringe, Ketten und Uhren) abnehmen. Metallgegenstände erhitzen sich, wenn sie an
das Netz und die Erde angeschlossen werden, und können schwere Verbrennungen verursachen
oder an die Anschlußklemmen angeschweißt werden.
Avvertenza
Prima di intervenire su apparecchiature collegate alle linee di alimentazione, togliersi qualsiasi monile (inclusi anelli, collane, braccialetti ed orologi). Gli oggetti metallici si riscaldano
quando sono collegati tra punti di alimentazione e massa: possono causare ustioni gravi oppure
il metallo può saldarsi ai terminali.
Advarsel
Fjern alle smykker (inkludert ringer, halskjeder og klokker) før du skal arbeide på utstyr som er
koblet til kraftledninger. Metallgjenstander som er koblet til kraftledninger og jord blir svært
varme og kan forårsake alvorlige brannskader eller smelte fast til polene.
Aviso
Antes de trabalhar em equipamento que esteja ligado a linhas de corrente, retire todas as jóias
que estiver a usar (incluindo anéis, fios e relógios). Os objectos metálicos aquecerão em contacto com a corrente e em contacto com a ligação à terra, podendo causar queimaduras graves
ou ficarem soldados aos terminais.
¡Advertencia!
Antes de operar sobre equipos conectados a líneas de alimentación, quitarse las joyas (incluidos anillos, collares y relojes). Los objetos de metal se calientan cuando se conectan a la alimentación y a tierra, lo que puede ocasionar quemaduras graves o que los objetos metálicos
queden soldados a los bornes.
Varning!
Tag av alla smycken (inklusive ringar, halsband och armbandsur) innan du arbetar på utrustning
som är kopplad till kraftledningar. Metallobjekt hettas upp när de kopplas ihop med ström och
jord och kan förorsaka allvarliga brännskador; metallobjekt kan också sammansvetsas med
kontakterna.
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Translated Safety Warnings
Lightning Activity Warning
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Waarschuwing
Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het systeem te werken of kabels
aan te sluiten of te ontkoppelen.
Varoitus
Älä työskentele järjestelmän parissa äläkä yhdistä tai irrota kaapeleita ukkosilmalla.
Attention
Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage.
Warnung
Arbeiten Sie nicht am System und schließen Sie keine Kabel an bzw. trennen Sie keine ab, wenn
es gewittert.
Avvertenza
Non lavorare sul sistema o collegare oppure scollegare i cavi durante un temporale con fulmini.
Advarsel
Utfør aldri arbeid på systemet, eller koble kabler til eller fra systemet når det tordner eller lyner.
Aviso
¡Advertencia!
Varning!
Não trabalhe no sistema ou ligue e desligue cabos durante períodos de mau tempo (trovoada).
No operar el sistema ni conectar o desconectar cables durante el transcurso de descargas eléctricas en la atmósfera.
Vid åska skall du aldrig utföra arbete på systemet eller ansluta eller koppla loss kablar.
Power Cabling Warning
Warning
Waarschuwing
Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.
Zet alle stroomkabels vast wanneer dit toestel wordt geïnstalleerd om te voorkomen dat de
verbindingen van de veldbedrading worden verstoord.
Varoitus
Kiinnitä kaikki voimakaapelit tiukkaan tätä laitetta asentaessasi, jotta vältät kentän johdinkytkentöjen vioittumista.
Attention
Lors de l’installation de cet appareil, fixer tous les câbles d’alimentation pour éviter de provoquer des perturbations aux raccordements des câblages propres au site.
Warnung
Bei der Installation dieser Einheit die Netzverkabelung befestigen, um die Störung von Feldkabelanschlüssen zu vermeiden.
Avvertenza
In fase di installazione dell'unità, assicurare tutti i cablaggi di alimentazione per evitare di alterare i collegamenti degli avvolgimenti di campo.
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Advarsel
Når denne enheten installeres, må alle kraftledninger sikres for å unngå at feltkabelkoblingene
forstyrres.
Aviso
Para evitar problemas com as ligações de rede de campanha, prenda todos os cabos de corrente
quando instalar esta unidade.
¡Advertencia!
Sujetar todo el cableado de alimentación cuando se instale este equipo para evitar que se mezcle con las conexiones del cableado "in situ".
Varning!
Fäst allt starkströmskablage vid installation av denna enhet så att fältkopplingen inte rubbas.
Power Supply Disconnection Warning
Warning
Waarschuwing
Before working on a chassis or working near power supplies, unplug the power cord on AC
units; disconnect the power at the circuit breaker on DC units.
Voordat u aan een frame of in de nabijheid van voedingen werkt, dient u bij wisselstroom toestellen de stekker van het netsnoer uit het stopcontact te halen; voor gelijkstroom toestellen dient u de stroom uit te schakelen bij de stroomverbreker.
Varoitus
Kytke irti vaihtovirtalaitteiden virtajohto ja katkaise tasavirtalaitteiden virta suojakytkimellä,
ennen kuin teet mitään asennuspohjalle tai työskentelet virtalähteiden läheisyydessä.
Attention
Avant de travailler sur un châssis ou à proximité d'une alimentation électrique, débrancher le
cordon d'alimentation des unités en courant alternatif ; couper l'alimentation des unités en courant continu au niveau du disjoncteur.
Warnung
Bevor Sie an einem Chassis oder in der Nähe von Netzgeräten arbeiten, ziehen Sie bei Wechselstromeinheiten das Netzkabel ab bzw. schalten Sie bei Gleichstromeinheiten den Strom am
Unterbrecher ab.
Avvertenza
Prima di lavorare su un telaio o intorno ad alimentatori, scollegare il cavo di alimentazione sulle
unità CA; scollegare l'alimentazione all’interruttore automatico sulle unità CC.
Advarsel
Før det utføres arbeid på kabinettet eller det arbeides i nærheten av strømforsyningsenheter,
skal strømledningen trekkes ut på vekselstrømsenheter og strømmen kobles fra ved strømbryteren på likestrømsenheter.
Aviso
Antes de trabalhar num chassis, ou antes de trabalhar perto de unidades de fornecimento de energia, desligue o cabo de alimentação nas unidades de corrente alternada; desligue a corrente
no disjuntor nas unidades de corrente contínua.
¡Advertencia!
Antes de manipular el chasis de un equipo o trabajar cerca de una fuente de alimentación, desenchufar el cable de alimentación en los equipos de corriente alterna (CA); cortar la alimentación desde el interruptor automático en los equipos de corriente continua (CC).
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Varning!
I nnan du arbetar med ett chassi eller nära strömförsörjningsenheter skall du för växelströmsenheter dra ur nätsladden och för likströmsenheter bryta strömmen vid överspänningsskyddet.
Power Supply Warning
Warning
Do not touch the power supply when the power cord is connected. For systems with a power
switch, line voltages are present within the power supply even when the power switch is off
and the power cord is connected. For systems without a power switch, line voltages are present
within the power supply when the power cord is connected.
Waarschuwing
U dient de voeding niet aan te raken zolang het netsnoer aangesloten is. Bij systemen met een
stroomschakelaar zijn er lijnspanningen aanwezig in de voeding, zelfs wanneer de stroomschakelaar uitgeschakeld is en het netsnoer aangesloten is. Bij systemen zonder een stroomschakelaar zijn er lijnspanningen aanwezig in de voeding wanneer het netsnoer aangesloten is.
Varoitus
Älä kosketa virtalähdettä virtajohdon ollessa kytkettynä. Virrankatkaisimella varustetuissa
järjestelmissä on virtalähteen sisällä jäljellä verkkojännite, vaikka virrankatkaisin on katkaistu-asennossa virtajohdon ollessa kytkettynä. Järjestelmissä, joissa ei ole virrankatkaisinta,
on virtalähteen sisällä verkkojännite, kun virtajohto on kytkettynä.
Attention
Ne pas toucher le bloc d'alimentation quand le cordon d'alimentation est branché. Avec les
systèmes munis d'un commutateur marche-arrêt, des tensions de ligne sont présentes dans l'alimentation quand le cordon est branché, même si le commutateur est à l'arrêt. Avec les
systèmes sans commutateur marche-arrêt, l'alimentation est sous tension quand le cordon d'alimentation est branché.
Warnung
Berühren Sie das Netzgerät nicht, wenn das Netzkabel angeschlossen ist. Bei Systemen mit
Netzschalter liegen Leitungsspannungen im Netzgerät vor, wenn das Netzkabel angeschlossen
ist, auch wenn das System ausgeschaltet ist. Bei Systemen ohne Netzschalter liegen Leitungsspannungen im Netzgerät vor, wenn das Netzkabel angeschlossen ist.
Avvertenza
Non toccare l’alimentatore se il cavo dell’alimentazione è collegato. Per i sistemi con un interruttore di alimentazione, tensioni di linea sono presenti all’interno dell’alimentatore anche
quando l’interruttore di alimentazione è en posizione di disattivazione (off), se il cavo dell’alimentazione è collegato. Per i sistemi senza un interruttore, tensioni di linea sono presenti all’interno dell’alimentatore quando il cavo di alimentazione è collegato.
Advarsel
Berør ikke strømforsyningsenheten når strømledningen er tilkoblet. I systemer som har en
strømbryter, er det spenning i strømforsyningsenheten selv om strømbryteren er slått av og
strømledningen er tilkoblet. Når det gjelder systemer uten en strømbryter, er det spenning i
strømforsyningsenheten når strømledingen er tilkoblet.
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Aviso
Não toque na unidade abastecedora de energia quando o cabo de alimentação estiver ligado.
Em sistemas com interruptor, a corrente eléctrica estará presente na unidade abastecedora,
sempre que o cabo de alimentação de energia estiver ligado, mesmo quando o interruptor se encontrar desligado. Para sistemas sem interruptor, a tensão eléctrica dentro da unidade abastecedora só estará presente quando o cabo de alimentação estiver ligado.
¡Advertencia!
No tocar la fuente de alimentación mientras el cable esté enchufado. En sistemas con interruptor de alimentación, hay voltajes de línea dentro de la fuente, incluso cuando el interruptor esté
en Apagado (OFF) y el cable de alimentación enchufado. En sistemas sin interruptor de alimentación, hay voltajes de línea en la fuente cuando el cable está enchufado.
Varning!
Vidrör inte strömförsörjningsenheten när nätsladden är ansluten. För system med strömbrytare
finns det nätspänning i strömförsörjningsenheten även när strömmen har slagits av men nätsladden är ansluten. För system utan strömbrytare finns det nätspänning i strömförsörjningsenheten
när nätsladden är ansluten.
Product Disposal Warning
Warning
Ultimate disposal of this product should be handled according to all national laws and regulations.
Waarschuwing
Het uiteindelijke wegruimen van dit product dient te geschieden in overeenstemming met alle
nationale wetten en reglementen.
Varoitus
Tämä tuote on hävitettävä kansallisten lakien ja määräysten mukaisesti.
Attention
La mise au rebut ou le recyclage de ce produit sont généralement soumis à des lois et/ou directives de respect de l'environnement. Renseignez-vous auprès de l'organisme compétent.
Warnung
Die Entsorgung dieses Produkts sollte gemäß allen Bestimmungen und Gesetzen des Landes erfolgen.
Avvertenza
Lo smaltimento di questo prodotto deve essere eseguito secondo le leggi e regolazioni locali.
Advarsel
Endelig kassering av dette produktet skal være i henhold til alle relevante nasjonale lover og
bestemmelser.
Aviso
¡Advertencia!
Varning!
Deitar fora este produto em conformidade com todas as leis e regulamentos nacionais.
Al deshacerse por completo de este producto debe seguir todas las leyes y reglamentos nacionales.
Vid deponering hanteras produkten enligt gällande lagar och bestämmelser.
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Translated Safety Warnings
Qualified Personnel Warning
Warning
Waarschuwing
Varoitus
Avertissement
Achtung
Avvertenza
Advarsel
Only trained and qualified personnel should be allowed to install or replace this equipment.
Installatie en reparaties mogen uitsluitend door getraind en bevoegd personeel uitgevoerd
worden.
Ainoastaan koulutettu ja pätevä henkilökunta saa asentaa tai vaihtaa tämän laitteen.
Tout installation ou remplacement de l'appareil doit être réalisé par du personnel qualifié et
compétent.
Gerät nur von geschultem, qualifiziertem Personal installieren oder auswechseln lassen.
Solo personale addestrato e qualificato deve essere autorizzato ad installare o sostituire questo
apparecchio.
Kun kvalifisert personell med riktig opplæring bør montere eller bytte ut dette utstyret.
Aviso
Este equipamento deverá ser instalado ou substituído apenas por pessoal devidamente treinado
e qualificado.
¡Atención!
Estos equipos deben ser instalados y reemplazados exclusivamente por personal técnico adecuadamente preparado y capacitado.
Varning
Denna utrustning ska endast installeras och bytas ut av utbildad och kvalificerad personal.
Radiation from Open Port Aperture
Warning
Because invisible radiation may be emitted from the aperture of the port when no fiber cable is
connected, avoid exposure to radiation and do not stare into open apertures.
Waarschuwing
Aangezien onzichtbare straling vanuit de opening van de poort kan komen als er geen fiberkabel
aangesloten is, dient blootstelling aan straling en het kijken in open openingen vermeden te
worden.
Varoitus
Koska portin aukosta voi emittoitua näkymätöntä säteilyä, kun kuitukaapelia ei ole kytkettynä,
vältä säteilylle altistumista äläkä katso avoimiin aukkoihin.
Attention
Des radiations invisibles à l'åil nu pouvant traverser l'ouverture du port lorsqu'aucun câble en
fibre optique n'y est connecté, il est recommandé de ne pas regarder fixement l'intérieur de ces
ouvertures.
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Warnung
Warnung: Aus der Port-Öffnung können unsichtbare Strahlen emittieren, wenn kein Glasfaserkabel angeschlossen ist. Vermeiden Sie es, sich den Strahlungen auszusetzen, und starren Sie
nicht in die Öffnungen!
Avvertenza
Quando i cavi in fibra non sono inseriti, radiazioni invisibili possono essere emesse attraverso
l'apertura della porta. Evitate di esporvi alle radiazioni e non guardate direttamente nelle aperture.
Advarsel
Unngå utsettelse for stråling, og stirr ikke inn i åpninger som er åpne, fordi usynlig stråling kan
emiteres fra portens åpning når det ikke er tilkoblet en fiberkabel.
Aviso
Dada a possibilidade de emissão de radiação invisível através do orifício da via de acesso,
quando esta não tiver nenhum cabo de fibra conectado, deverá evitar a exposição à radiação e
não deverá olhar fixamente para orifícios que se encontrarem a descoberto.
¡Advertencia!
Debido a que la apertura del puerto puede emitir radiación invisible cuando no existe un cable
de fibra conectado, evite mirar directamente a las aperturas para no exponerse a la radiación.
Varning!
Osynlig strålning kan avges från en portöppning utan ansluten fiberkabel och du bör därför undvika att bli utsatt för strålning genom att inte stirra in i oskyddade öppningar.
Restricted Area Warning
Warning
This unit is intended for installation in restricted access areas. A restricted access area is
where access can only be gained by service personnel through the use of a special tool, lock
and key, or other means of security, and is controlled by the authority responsible for the location.
Waarschuwing
Dit toestel is bedoeld voor installatie op plaatsen met beperkte toegang. Een plaats met
beperkte toegang is een plaats waar toegang slechts door servicepersoneel verkregen kan
worden door middel van een speciaal instrument, een slot en sleutel, of een ander veiligheidsmiddel, en welke beheerd wordt door de overheidsinstantie die verantwoordelijk is voor
de locatie.
Varoitus
Attention
Tämä laite on tarkoitettu asennettavaksi paikkaan, johon pääsy on rajoitettua. Paikka, johon
pääsy on rajoitettua, tarkoittaa paikkaa, johon vain huoltohenkilöstö pääsee jonkin
erikoistyökalun, lukkoon sopivan avaimen tai jonkin muun turvalaitteen avulla ja joka on
paikasta vastuussa olevien toimivaltaisten henkilöiden valvoma.
Cet appareil est à installer dans des zones d’accès réservé. Ces dernières sont des zones auxquelles seul le personnel de service peut accéder en utilisant un outil spécial, un mécanisme
de verrouillage et une clé, ou tout autre moyen de sécurité. L’accès aux zones de sécurité est
sous le contrôle de l’autorité responsable de l’emplacement.
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Warnung
Diese Einheit ist zur Installation in Bereichen mit beschränktem Zutritt vorgesehen. Ein Bereich
mit beschränktem Zutritt ist ein Bereich, zu dem nur Wartungspersonal mit einem Spezialwerkzeugs, Schloß und Schlüssel oder anderer Sicherheitsvorkehrungen Zugang hat, und der
von dem für die Anlage zuständigen Gremium kontrolliert wird.
Avvertenza
Questa unità deve essere installata in un'area ad accesso limitato. Un'area ad accesso limitato
è un'area accessibile solo a personale di assistenza tramite un'attrezzo speciale, lucchetto, o
altri dispositivi di sicurezza, ed è controllata dall'autorità responsabile della zona.
Advarsel
Denne enheten er laget for installasjon i områder med begrenset adgang. Et område med begrenset adgang gir kun adgang til servicepersonale som bruker et spesielt verktøy, lås og nøkkel,
eller en annen sikkerhetsanordning, og det kontrolleres av den autoriteten som er ansvarlig for
området.
Aviso
Esta unidade foi concebida para instalação em áreas de acesso restrito. Uma área de acesso
restrito é uma área à qual apenas tem acesso o pessoal de serviço autorizado, que possua uma
ferramenta, chave e fechadura especial, ou qualquer outra forma de segurança. Esta área é controlada pela autoridade responsável pelo local.
¡Advertencia!
Esta unidad ha sido diseñada para instalarse en áreas de acceso restringido. Área de acceso
restringido significa un área a la que solamente tiene acceso el personal de servicio mediante
la utilización de una herramienta especial, cerradura con llave, o algún otro medio de seguridad, y que está bajo el control de la autoridad responsable del local.
Varning!
Denna enhet är avsedd för installation i områden med begränsat tillträde. Ett område med begränsat tillträde får endast tillträdas av servicepersonal med ett speciellt verktyg, lås och nyckel, eller annan säkerhetsanordning, och kontrolleras av den auktoritet som ansvarar för
området.
SELV Circuit Warning
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain
TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables.
Waarschuwing
Om elektrische schokken te vermijden, mogen veiligheidscircuits met extra lage spanning
(genaamd SELV = Safety Extra-Low Voltage) niet met telefoonnetwerkspanning (TNV) circuits
verbonden worden. LAN (Lokaal netwerk) poorten bevatten SELV circuits en WAN (Regionaal
netwerk) poorten bevatten TNV circuits. Sommige LAN en WAN poorten gebruiken allebei RJ-45
connectors. Ga voorzichtig te werk wanneer u kabels verbindt.
Varoitus
Jotta vältyt sähköiskulta, älä kytke pienjännitteisiä SELV-suojapiirejä puhelinverkkojännitettä
(TNV) käyttäviin virtapiireihin. LAN-portit sisältävät SELV-piirejä ja WAN-portit puhelinverkkojännitettä käyttäviä piirejä. Osa sekä LAN- että WAN-porteista käyttää RJ-45-liittimiä.
Ole varovainen kytkiessäsi kaapeleita.
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Translated Safety Warnings
Attention
Pour éviter une électrocution, ne raccordez pas les circuits de sécurité basse tension (Safety
Extra-Low Voltage ou SELV) à des circuits de tension de réseau téléphonique (Telephone Network Voltage ou TNV). Les ports du réseau local (LAN) contiennent des circuits SELV et les ports
du réseau longue distance (WAN) sont munis de circuits TNV. Certains ports LAN et WAN utilisent des connecteurs RJ-45. Raccordez les câbles en prenant toutes les précautions nécessaires.
Warnung
Zur Vermeidung von Elektroschock die Sicherheits-Kleinspannungs-Stromkreise (SELV-Kreise)
nicht an Fernsprechnetzspannungs-Stromkreise (TNV-Kreise) anschließen. LAN-Ports enthalten
SELV-Kreise, und WAN-Ports enthalten TNV-Kreise. Einige LAN- und WAN-Ports verwenden
auch RJ-45-Steckverbinder. Vorsicht beim Anschließen von Kabeln.
Avvertenza
Per evitare scosse elettriche, non collegare circuiti di sicurezza a tensione molto bassa (SELV)
ai circuiti a tensione di rete telefonica (TNV). Le porte LAN contengono circuiti SELV e le porte
WAN contengono circuiti TNV. Alcune porte LAN e WAN fanno uso di connettori RJ-45. Fare attenzione quando si collegano cavi.
Advarsel
Unngå å koble lavspenningskretser (SELV) til kretser for telenettspenning (TNV), slik at du unngår elektrisk støt. LAN-utganger inneholder SELV-kretser og WAN-utganger inneholder
TNV-kretser. Det finnes både LAN-utganger og WAN-utganger som bruker RJ-45-kontakter. Vær
forsiktig når du kobler kabler.
Aviso
Para evitar choques eléctricos, não conecte os circuitos de segurança de baixa tensão (SELV)
aos circuitos de tensão de rede telefónica (TNV). As portas LAN contêm circuitos SELV e as portas WAN contêm circuitos TNV. Algumas portas LAN e WAN usam conectores RJ-45. Tenha o
devido cuidado ao conectar os cabos.
¡Advertencia!
Para evitar la sacudida eléctrica, no conectar circuitos de seguridad de voltaje muy bajo (safety
extra-low voltage = SELV) con circuitos de voltaje de red telefónica (telephone network voltage
= TNV). Los puertos de redes de área local (local area network = LAN) contienen circuitos SELV,
y los puertos de redes de área extendida (wide area network = WAN) contienen circuitos TNV.
En algunos casos, tanto los puertos LAN como los WAN usan conectores RJ-45. Proceda con
precaución al conectar los cables.
Varning!
För att undvika elektriska stötar, koppla inte säkerhetskretsar med extra låg spänning
(SELV-kretsar) till kretsar med telefonnätspänning (TNV-kretsar). LAN-portar innehåller
SELV-kretsar och WAN-portar innehåller TNV-kretsar. Vissa LAN- och WAN-portar är försedda
med RJ-45-kontakter. Iaktta försiktighet vid anslutning av kablar.
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Translated Safety Warnings
Stacking the Chassis Warning
Warning
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily
injury and equipment damage.
Waarschuwing
Het chassis mag niet op andere apparatuur gestapeld te worden. Als het chassis mocht vallen,
kan dit ernstig lichamelijk letsel en beschadiging van de apparatuur veroorzaken.
Varoitus
Älä aseta asennuspohjaa minkään muun laitteen päälle. Asennuspohja voi pudotessaan
aiheuttaa vaikean ruumiinvamman tai laitevaurion.
Avertissement
Ne placez pas ce châssis sur un autre appareil. En cas de chute, il pourrait provoquer de graves
blessures corporelles et d'importants dommages.
Achtung
Das Gehäuse nicht auf andere Geräte stellen. Wenn das Gehäuse herunterfällt, besteht Gefahr
schwerer Personenverletzungen und Geräteschäden.
Avvertenza
Non collocare lo chassis su nessun altro apparecchio. Se lo chassis cade, può causare lesioni
gravi e danni alle apparecchiature.
Advarsel
Stable ikke kabinettet oppå annet utstyr. Hvis kabinettet faller, kan det forårsake alvorlig skade
på mennesker og utstyr.
Aviso
Não coloque o chassis em cima de qualquer outro equipamento. Se o chassis cair, poderá
causar ferimentos graves e danos no equipamento.
¡Atención!
No apilar los chasis sobre ningún otro equipo. Si el chasis se cae al suelo puede causar graves
lesiones físicas y daños al equipo.
Varning
Placera inte chassit ovanpå annan utrustning. Om chassit faller kan allvarlig kroppsskada såväl
som skada på utrustningen uppstå.
Supply Circuit Warning
Warning
Waarschuwing
Varoitus
Care must be given to connecting units to the supply circuit so that wiring is not overloaded.
Let erop dat de toestellen op voedingscircuits worden aangesloten zonder het vermogen van de
bedrading te overschrijden.
Laiteyksiköt on yhdistettävä huolellisesti syöttöpiiriin niin, että johdot eivät ole ylikuormitettuja.
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Avertissement
Veillez à bien connecter les unités au circuit d'alimentation afin de ne pas surcharger les connections.
Achtung
Beim Anschließen der Geräte an das Stromnetz ist darauf zu achten, daß die Schaltverbindungen nicht überlastet werden.
Avvertenza
Fare attenzione quando si collegano le unità al circuito di alimentazione, per non sovraccaricare i cablaggi.
Advarsel
Vær nøye med å koble enheter til strømforsyningskretsen slik at ledningene ikke overbelastes.
Aviso
Deverá ter precaução ao ligar unidades ao circuito de fornecimento de energia, para não sobrecarregar a instalação.
¡Atención!
Poner mucho cuidado al conectar los equipos al circuito de alimentación a fin de no sobrecargar el cableado.
Varning
Var noga vid anslutning av enheter till matarströmkretsen så att ledningarna inte överbelastas.
Telecommunications Lines Warning
Warning
Waarschuwing
The telecommunications lines must be disconnected 1) before unplugging the main power connector and/or 2) while the housing is open.
De telecommunicatielijnen moeten verbroken worden 1) voordat de hoofdvoedingsconnector
uitgeschakeld wordt en/of 2) terwijl de behuizing nog open is.
Varoitus
Tietoliikennelinjat on kytkettävä irti 1) ennen kuin päävirtaliitin irrotetaan pistorasiasta ja/tai
2) kun suojus on auki.
Attention
Les lignes de télécommunications doivent être déconnectées 1) avant de débrancher le connecteur d’alimentation principal et/ou 2) lorsque le boîtier est ouvert.
Warnung
Die Fernmeldeleitungen müssen getrennt werden, 1) bevor der Netzstecker abgezogen wird
und/oder 2) während das Gehäuse geöffnet ist.
Avvertenza
Advarsel
Aviso
Le linee di telecomunicazione vanno scollegate sia prima di scollegare la spina dell’alimentazione di rete sia prima di aprire l’involucro (non ricollegarle finché non si chiude l’involucro).
Telekommunikasjonsledningene må være frakoblet 1) før hovedstrømskoblingen kobles ut
og/eller 2) når huset er åpent.
As linhas de telecomunicações têm de ser desligadas: 1) antes de desligar o conector de corrente principal; e/ou 2) enquanto a cobertura estiver aberta.
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¡Advertencia!
Varning!
Las líneas de telecomunicaciones deben desconectarse 1) antes de desenchufar el conector
principal de energía y 2) mientras la caja esté abierta.
Telekommunikationslinjerna måste vara urkopplade 1) innan huvudströmskontakten tas ur
och/eller 2) medan kåpan är öppen.
TN Power Warning
Warning
Waarschuwing
Varoitus
The device is designed to work with TN power systems.
Het apparaat is ontworpen om te functioneren met TN energiesystemen.
Koje on suunniteltu toimimaan TN-sähkövoimajärjestelmien yhteydessä.
Attention
Ce dispositif a été conçu pour fonctionner avec des systèmes d'alimentation TN.
Warnung
Das Gerät ist für die Verwendung mit TN-Stromsystemen ausgelegt.
Avvertenza
Advarsel
Aviso
¡Advertencia!
Varning!
Il dispositivo è stato progettato per l’uso con sistemi di alimentazione TN.
Utstyret er utfomet til bruk med TN-strømsystemer.
O dispositivo foi criado para operar com sistemas de corrente TN.
El equipo está diseñado para trabajar con sistemas de alimentación tipo TN.
Enheten är konstruerad för användning tillsammans med elkraftssystem av TN-typ.
Two Person Lifting Warning
Warning
Two people are required to lift the chassis. To prevent injury, keep your back straight
and lift with your legs, not your back.
Waarschuwing
Er zijn twee personen nodig om het chassis op te tillen. Om letsel te voorkomen dient
u uw rug recht te houden en met uw benen te tillen in plaats van met uw rug.
Varoitus
Asennuspohjan nostamiseen tarvitaan kaksi henkilöä. Nosta jalkojen (ei selän) avulla
pitäen selkäsi suorana, jotta välttäisit loukkaantumista.
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Translated Safety Warnings
Attention
Le châssis doit être soulevé par au minimum deux personnes. Pour éviter tout risque
d'accident, maintenez le dos droit et poussez sur vos jambes. Ne soulevez pas l'unité
avec votre dos.
Warnung
Um das Chassis anzuheben, sind zwei Leute erforderlich. Um Verletzungsgefahr
auszuschalten, halten Sie den Rücken gerade und heben Sie mit den Beinen, nicht dem
Rücken.
Avvertenza
Per sollevare il chassis occorre l’intervento di due persone. Onde evitare il rischio di
lesioni personali, tenere sempre ben dritta la schiena e piegare solo le gambe durante
il sollevamento in modo da scaricare il peso sulle gambe e non sulla schiena.
Advarsel
Det er nødvendig at to personer løfter kabinettet. Hold ryggen rett og løft med beina ikke ryggen - for å unngå personskade.
Aviso
São necessárias duas pessoas para levantar o chassis. Para evitar lesões, mantenha
as costas direitas e levante o peso com ambas as pernas, sem forçar as costas.
¡Advertencia!
Varning!
Se requieren dos personas para elevar el chasis. Para evitar lesiones, mantenga su
espalda en posición recta y levante con sus piernas, no con su espalda.
Det krävs två personer för att lyfta chassit. För att undvika skador ska du hålla ryggen
rak och lyfta med benen, inte ryggen.
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A P P E N D I X
H
Site Log
A site log provides a historical record of all actions relevant to the Cisco uBR7200 series universal
broadband router operation and maintenance. Keep your site log in a common place near the chassis
where anyone who performs tasks has access to it. Site log entries might include the following:
•
Installation progress—Make a copy of the Cisco uBR7200 Series Router Installation Checklist,
page 3-1, and insert it into the site log. Make entries on the Installation Checklist as each procedure
is completed.
•
Upgrades and removal and replacement procedures—Use the site log as a record of system
maintenance and expansion history. Each time a procedure is performed on the system, update the
site log to reflect the following:
– Port adapters installed, removed, or replaced
– Cisco cable clock card installed, removed, or replaced (Cisco uBR7246VXR only)
– Cable interface cards installed, removed, or replaced
– I/O controller removed and replaced
– Network processing engine removed, replaced, or upgraded
– Fan tray removed and replaced
– Power supply removed or replaced
– Redundant power supply installed
– Chassis replaced
– Subchassis and midplane replaced
– Configuration changed; port adapters or cable interface cards moved
– Memory upgraded
– Software upgraded
– Corrective maintenance procedures performed
– Intermittent problems
– Related comments
Table H-1 on page H-2 shows a sample site log page. Make copies of the sample or design your own site
log to meet the needs of your site and equipment.
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Table H-1
Date
Site Log
Site Log
Description of Action Performed or Symptom Observed
Initials
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Site Log
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H-3
G L O S S A RY
Symbols
10BASE-T
10-Mbps baseband Ethernet specification using two pairs of twisted-pair cabling (Category 3, 4, or 5):
one pair for transmitting data and the other for receiving data. 10BASE-T, which is part of the IEEE
802.3 specification, has a distance limit of approximately 328 feet (100 meters) per segment. See also
IEEE 802.3 and Ethernet.
100BASE-T
100-Mbps baseband Fast Ethernet specification using UTP wiring. Like the 10BASE-T technology on
which it is based, 100BASE-T sends link pulses over the network segment when no traffic is present.
However, these link pulses contain more information than those used in 10BASE-T. The 100BASE-T
specification is based on the IEEE 802.3 standard.
802.x
IEEE standards for the definition of LAN protocols.
1000BASE-LX/LH
1000-Mbps gigabit Ethernet specification using two strands of multimode or single mode fiber-optic
cable per link. To guarantee proper signal recovery, a 1000BASE-LX/LH link cannot exceed 1804 feet
(550 meters) in length over multimode fiber or 32,810 feet (10 km) in length over single mode fiber.
Based on the IEEE 802.3 standard with reach over single mode fiber extended from 5 km to 10 km.
1000BASE-SX
1000-Mbps gigabit Ethernet specification using two strands of multimode fiber-optic cable per link. To
guarantee proper signal recovery, a 1000BASE-SX link cannot exceed 1804 feet (550 meters) in length.
The 1000BASE-SX specification is based on the IEEE 802.3 standard.
1000BASE-X
1000-Mbps gigabit Ethernet specification that refers to the 1000BASE-CX, 1000BASE-SX, and
1000BASE-LX standards for gigabit Ethernet over fiber-optic cabling. The 1000BASE-X specification
is based on the IEEE 802.3 standard.
1000BASE-ZX
1000-Mbps gigabit Ethernet specification using two strands of single mode fiber-optic cable per link.
To guarantee proper signal recovery, a 1000BASE-ZX link cannot be longer than 62.1 mi (100 km).
This is a Cisco specification.
A
AAA server
Authorization, authentication, and accounting server.
AGC
Automatic gain control
Alarm
A status condition that shows that a module or port is experiencing an abnormal operating condition.
See also Critical alarm, Major alarm, and Minor alarm.
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Glossary
AS/NZS
Australia/New Zealand.
ATM
Asynchronous Transfer Mode. International standard for cell relay in which multiple service types
(such as voice, video, or data) are conveyed in fixed-length (53-byte) cells. Fixed-length cells allow cell
processing to occur in hardware, thereby reducing transit delays. ATM is designed to take advantage of
high-speed transmission media such as E3, SONET, and T3.
B
BER
Bit error rate.
C
CATV
Cable television. References to headend or distribution hub.
CBR
Constant bit rate.
CCITT
Consultative Committee for International Telegraph and Telephone. International organization
responsible for the development of communications standards. Now called the ITU-T. (See ITU-T.)
CCS
Common channel signaling.
CES
Circuit emulation service.
Chrominance
The color portion of a video signal.
CMTS
Cable modem termination system, such as the Cisco uBR7246VXR router.
C/N ratio
Carrier-to-noise ratio.
CNR
Cisco Network Registrar.
CPE
Customer premises equipment.
Critical alarm
An alarm condition that might affect most or all subscribers that connect to the reporting node. To
obtain more information about a problem, use the show facility-alarm status command.
See also Major alarm and Minor alarm.
CSRC
Cisco Subscriber Registration Center.
CSU/DSU
Channel service unit/data service unit.
CTS
Clear To Send.
D
DCD
Data carrier detect.
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Glossary
DCE
Data circuit-terminating equipment (ITU-T expansion). Devices and connections of a
communications network that comprise the network end of the user-to-network interface. The DCE
provides a physical connection to the network, forwards traffic, and provides a clocking signal used
to synchronize data transmission between DCE and DTE devices. Modems and interface cards are
examples of DCE. Compare with DTE.
DHCP
Dynamic Host Configuration Protocol.
DNS
Domain Name System.
DOCSIS
Data-over-Cable Service Interface Specification.
DSR
Data set ready.
DSU
Data Service Unit. Device used in digital transmission that adapts the physical interface on a DTE
device to a transmission facility such as T1 or E1. The DSU is also responsible for such functions as
signal timing. Often used with CSU, as in CSU/DSU.
DTE
Data terminal equipment. Device at the user end of a user-network interface that serves as a data
source, destination, or both. DTE connects to a data network through a DCE device (for example, a
modem) and typically uses clocking signals generated by the DCE. DTE includes devices such as
computers, protocol translators, and multiplexers.
E
EIA
Electronic Industries Alliance.
EIA/TIA-232-E
The latest version of the RS-232-C serial data transfer standard. This standard defines the serial ports
on computers, which communicate with external modems, and so on.
EMI
Electromagnetic interference.
EPROM
Erasable programmable read-only memory.
ESD
Electrostatic discharge.
EuroDOCSIS
European Data-over-Cable Service Interface Specifications.
F
Fast Ethernet
Any of a number of 100-Mbps Ethernet specifications. Fast Ethernet offers a speed increase 10 times
that of the 10BASE-T Ethernet specification, while preserving qualities such as frame format, MAC
mechanisms, and MTU. Existing 10BASE-T applications and network management tools can be used
on Fast Ethernet networks. The Fast Ethernet specification is based on an extension to the IEEE 802.3
specification. See also 100BASE-T and IEEE 802.3.
FEC
Forward error correction.
FER
Frame error rate.
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Glossary
Flash memory
Nonvolatile storage that can be electrically erased and reprogrammed so that software images can be
stored, booted, and rewritten as necessary. Flash memory was developed by Intel and is licensed to
other semiconductor companies
Frame relay
Industry-standard, switched data link layer protocol that handles multiple virtual circuits using HDLC
encapsulation between connected devices. Frame Relay is more efficient than X.25, the protocol for
which it is generally considered a replacement.
FRU
Field replaceable unit. A component that can be removed from a network device and replaced in the
field. Line cards, power modules, and fan modules are typically FRUs.
G
GBIC
Gigabit Ethernet converter. An interface module used by gigabit Ethernet and Fibre Channel to convert
the serial electrical signals to the transmission medium’s physical layer signalling, which is typically
optical. GBIC modules can be hot-swapped and contain ID and system information that a switch or
router can use to determine the network device's capabilities. Different GBICs handle different types
of fiber cable. See 1000BASE-LX/LH, 1000BASE-SX, and 1000BASE-ZX.
GPS
Global positioning system.
H
H.323 VoIP network Protocol that supports VoIP.
HDLC
High-Level Data Link Control.
HFC
Hybrid fiber-coaxial.
HRC
Harmonic related carrier.
HSSI
High-Speed Serial Interface.
I
IEC
International Electrotechnical Commission.
IEEE 802.3
IEEE LAN protocol that specifies an implementation of the physical layer and the MAC sublayer of
the data link layer. IEEE 802.3 uses CSMA/CD access at a variety of speeds over a variety of physical
media. Extensions to the IEEE 802.3 standard specify implementations for Fast Ethernet and gigabit
Ethernet.
IRC
Incremental Related Carrier. Defined in DOCSIS specification, IS-6, North American frequency
plans.
ITU-T
International Telecommunication Union-Telecommunications Standardization Sector.
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Glossary
ITU-T J.83 Annex A
Series J.83 deals with the transmission of television, sound programming, and other multimedia
signals. Annex A defines the management interface between the customer premise equipment and the
Frame Relay network for European channel plans.
ITU-T J.38 Annex B
Series J.38 deals with the transmission of television, sound programming, and other multimedia
signals. Annex B defines the management interface between the customer premise equipment and the
Frame Relay network for North American channel plans.
J
JATE
Japanese Approvals Institute for Telecommunications Equipment—Equivalent to FCC part 68
certification.
M
MAC
Media Access Control.
Major alarm
One of a group of alarm conditions that are considered the second most severe of all reportable alarms.
Major alarms affect several subscribers who connect to the reporting node. You can use the show
facility-alarm status IOS command to obtain more information about the problem.
See also Critical alarm and Minor alarm.
MDC
MII data clock.
MDIO
MII data input/output.
MER
Modulation error ratio.
MIGC
Manual IF gain control.
Minor alarm
One of a group of alarm conditions that are considered the third most severe of all reportable alarms.
Minor alarms affect a single or small number of subscribers who connect to the reporting node. You
can use the show facility-alarm status IOS command to obtain more information about the problem.
See also Critical alarm and Major alarm.
MMF
Multimode fiber. Optical fiber supporting propagation of multiple frequencies of light.
MSO
Multiple system operator.
N
NCTA
National Cable Television Association.
NEBs
Network Equipment Building Systems. The Telcordia (formerly Bellcore) requirements for equipment
deployed in a central office environment. Covers spatial, hardware, crafts person interface, thermal,
fire resistance, handling and transportation, earthquake and vibration, airborne contaminants,
grounding, acoustical noise, illumination, EMC, and ESD requirements.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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Glossary
NEC
National Electrical Code.
NFPA
National Fire Protection Association 70 (in the United States).
NPE
Network processing engine.
NSE
Network services engine.
NTSC
National Television System Committee.
NVRAM
Nonvolatile random-access memory.
O
OIR
Online insertion and removal.
OTP
One-time programmable.
P
PA
Port adapter.
PAL
Phase alternate line.
PCI
Protocol control information.
PCMCIA
Personal Computer Memory Card International Association.
Q
QAM
Quadrature amplitude modulation. A modulation technique using variations in simple amplitude.
QPSK
Quaternary phase shift keying. A compression technique used in modems and wireless networks.
R
RG-59
59-series headend coaxial cable.
RTS
Request to send.
S
SDH
Synchronous Digital Hierarchy.
SDRAM
Synchronous dynamic random-access memory.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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GL-6
Glossary
SECAM
SEquential Coulour Avec Memoire.
SELV
Safety extra-low voltage.
SGCP
Simple Gateway Control Protocol.
SIMM
Single in-line memory module.
SMF
Single-mode fiber. Fiber-optic cabling with a narrow core that allows light to enter only at a single
angle. Such cabling has higher bandwidth than multimode fiber, but requires a light source with a
narrow spectral width (for example, a laser). Also called monomode fiber.
SONET
Synchronous Optical Network. High-speed synchronous network specification developed by Bellcore
and designed to run on optical fiber. STS-1 is the basic building block of SONET. It was approved as
an international standard in 1988.
SR
Short reach. SONET/SDH specification for transmit power and receive sensitivity that achieves a
1.2-mile (2 km) reach.
SRAM
Static Random-Access Memory.
SRP
Spatial reuse protocol.
STB
Set-top box.
T
T1
Digital WAN carrier facility. T1 transmits DS1-formatted data at 1.544 Mbps through the telephone
switching network.
T3
Digital WAN carrier facility. T3 transmits DS3-formatted data at 44.736 Mbps through the telephone
switching network.
TAC
Technical Assistance Center.
ToD
Time of day.
TFTP
Trivial File Transfer Protocol.
TNV
Telephone-network voltage.
U
UBR
Universal broadband router.
UTP
Unshielded twisted-pair.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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Glossary
V
VLAN
Virtual LAN. A group of devices on one or more LANs that are configured (using management
software) so that they can communicate as if they were attached to the same wire, when in fact they
are located on a number of different LAN segments. Because VLANs are based on logical instead of
physical connections, they are extremely flexible.
VoIP
Voice over IP.
VPN
Virtual private network.
VXR
Voice Extension Ready.
W
WAN
Wide-area network. A data communications network that serves users across a broad geographic area
and often uses transmission devices provided by a common carrier (such as a telephone company or
service provider).
X
X-level test point
A test point that is established by inserting a test signal of known amplitude into a fiber node and then
measuring the output level amplitude at the headend optical receiver.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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GL-8
Glossary
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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I N D E X
requirements
A
3-5
cable-management kit, using
AAA server
2-15
access server
cable network configurations, overview
2-15
adapter pinouts
AC power
1-9
6
6-4
connecting
crossover
4-11
C-3
C-5, C-6
Fast Ethernet ports
adding attenuators
4-4
attenuator manufacturers
fiber-optic
G-1, G-3
auxiliary port, PRE module
C-3, C-4
line loss
2-16
4-4
return loss
rollover
C-2
C-3
safety guidelines
B
banner, system
3-26
2-4
straight-through
C-5, C-6
swapping power
5-5
ungrounded and uninsulated
boot system flash command
6-12
wire gauge
card slots
2-4
C-1
1-7, 1-8, 1-9
Category 3 or 5 UTP RJ-45 cables
C
CATV mode
C/N ratio
4-16
cable interface cards
1-1, 1-18, 2-13
3-15
MC16E downstream output level
output levels
4-5
subsystem for troubleshooting
5-9
cable management bracket
4-post rack
how to install
C-5
4-24 to 4-30
caution
cable headend configurations, overview
cables
C-5
C-7
interference
authorization, authentication, and accounting server, see
AAA server
C-5
3-15
console port
1-27, 2-19
attenuation
1-23
Category 3 or 5 UTP
agency standards for Cisco uBR7200 series routers
airflow
1-10
cables
C-3
addresses, MAC
air exhaust
2-19
3-6
3-6, 3-7, 3-8, 3-11, 3-13
4-6
1-10
chassis, overheating
2-19
data loss due to formatting flash memory card
6-13
I/O controller removal while system operating
6-1
network processing engine removal while system
operating 6-1
channel range
channel rates
1-10
B-1
chassis
Cisco uBR7223 description
1-3
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IN-1
Index
Cisco uBR7246 description
US export laws
1-4
Cisco uBR7246 VXR description
clearance
digital data
rf data
warning against stacking
checklist
connecting to power
6-4
3-1
Cisco uBR900
2-20
auxiliary port signals
3-18
console and auxiliary
3-16
Fast Ethernet MII
cables
cooling subsystem
copy commands
1-1
location
CSRC
1-6
6-10, 6-12
coaxial jumper manufacturers
color codes
C-5, C-6
1-12
G-1, G-3
D
damage from overheating
D-2
data packet
small wiring groups
telephone wire
D-5
DC power
6-12
DHCP server
2-7, 6-4
show environment table
compliance
6-5
6-2
2-14
digital data signals
4-3
digital signal level meter manufacturers
diplex filter manufacturers
8
FCC Class B
diplex filters
7
5-10
2-6
DC power, shutdown
6-10, 6-12
show environment
4-39
data transmission, verify downstream signals
commands
boot system flash
6-2
4-38
data packets
D-3
6-3
5-8
1-12, 2-14
optical fiber
5-4
5-2
crossover cables
1-19
subsystem for troubleshooting
european
C-3
critical status level, environmental monitor
3-15
description
3-18
console terminal, system banner display
2-19
4-4
clock card
3-17
console port, PRE module
6-4
clearance, for air circulation
copy
3-20, 3-21, 3-22
console port signals
4-16, 5-11
clearance
clipping
3-17
connection equipment
site preparation
chassis
4-2, 4-3
configuring the console port
3-2
installation
CNR
4-17
typical cable headend
3-13
1-27
chassis clearance
4-54
4-1
RF signal
1-1
chassis airflow
4-1
digital signal
1-2
2-2
types of
1-12
configuring
1-23
2-18
installation
8
2-21, 2-22
configuration tools
2-17
ground receptacle
lifting
VCCI Class B, Japan
component checklist
2-19
footprint
height
1-5
6
G-2, G-4
G-1, G-3
2-14
displays, environmental
6-4
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Index
distance limitations, transmission
DNS server
DOCSIS
show environment last command output
2-17
exhaust air
2-14
6-4
1-1, 2-12, 4-7, 4-37, 4-47, 4-49
IF transmissionn rate
2-13
transfer configuration files
F
2-14
DOCSIS 1.0 parameters
B-2
fan failures
DOCSIS 1.1 parameters
B-5
fan tray
downstream
connecting and configuring
EuroDOCSIS frequency
4-15
1-2, 1-25, 1-27
1-7, 1-9, 1-18, C-5
fiber-optic laser receivers
4-4 to 4-16
field notices
4-7
installing the upconverter
2-14
5-10
field-replaceable units, see FRUs
4-4
filler panels
measuring laser transmitter forward test
point 4-50 to 4-53
measuring RF signal
4-18 to 4-30
testing configuration
4-16
DRAM, errors
6-6
Fast Ethernet
complete configuration example
1-14
2-7
flash memory card
1-17
formatting a new flash memory card
memory options
1-32
replacement instructions
1-16
1-18
flash memory copy command
4-12
6-9
1-32
physical description
1-16
DRAM, SIMM cautions and configurations
drifting
6-4
6-10, 6-12
flash memory copying between cards
frequency, fine tuning, error
6-11
4-13
frequency allocation
E
NTSC
EEPROM, MAC address bank
electrical input and output
electrical noise
1-10
NTSC (M)
B-8
PAL standard
electrostatic discharge, preventing
2-4
E-3
E-10
related Web sites
E-1
SECAM standard
E-10
standards comparisons
environmental monitor, description
environmental specifications
6-2
frequency response
2-6
fan tray
2-17
1-25
I/O controller
examples
1-32
1-17
network processing engine
copying images between flash memory cards
copying images to a flash memory card
6-10
6-11
port adapters
1-19
FRUs overview
1-14
1-15
6-9
show environment all command output
show environment command output
4-30
Flash memory cards
1-1, 2-12, 2-13, 4-7, B-6, 1
formatting a new flash memory card
E-2
FRUs
2-15
Ethernet distance limitations
EuroDOCSIS
2-16
2-4
equipment, CMTS
E-8
NTSC standards
4-3
electromagnetic pulse (EMP), avoiding
EMI, shielding
E-1
6-5
6-4
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IN-3
Index
IF
G
channel power
GPS receiver manufacturers
G-2, G-3
gravity, maintaining low center
ground receptacle, chassis
downstream signal
2-19
input level
1-23
1-23
4-5
output level
4-4
impulse noise
4-3
ingress noise
4-3
insertion loss
4-15
4-18 to 4-19
installation
handling
cable interface cards cards
2-4
analyze the RF
network processing engine
2-4
before you begin
handling cards
checklist
1-7
hardware components, overview
headend certification
headend provisioning
1-14
2-13
headend configurations, overview
2-8
connecting cables
3-14, 3-15
connecting power
3-20
equiipment
2-12
2-8
ESD
2-10
3-13
headend setup
4-16
2-2
2-4
general
C-1
2-11
3-1
electrical safety
1-10
headend provisioning, required network information
HFC network
4-1
checking the shipping container
2-4
hardware address
HFC
4-9
measuring the signal
H
handles, power supply
4-19
4-1
initial configuration information
I
I/O controller
cables
2-2
preparing for
4-1
rack-mounting the chassis
1-2, 1-4, 1-6
auxiliary port
lifting safety
safety guidelines
3-16
components
1-17
site requirements
console port
3-16
tools
description
handling
LEDs
normal startup
3-3
interference, radio frequency
5-3
Internet access overview
1-17
replacement instructions
spare
3-2
installing chassis on a tabletop
1-18, 5-3
reset button
2-9
installing chassis in a rack
2-4
NVRAM
2-1
2-5
installation checklist
1-17
3-3
2-1
safety recommendations
3-15
IP telephony overview
1-18
ITU-T J.83
1-18
subsystem for troubleshooting
identifying startup problems
3-13
2-16
1-11
IP telephony network example
1-18
2-8
1-13
1-13
1-1
5-7
5-3
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IN-4
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Index
chassis
J
Japan, frequency allocations
E-8
jewelry, avoiding for safety
2-2
kits
clock speed
1-15
description
1-15
RISC
K
1-15
1-15
subsystem for troubleshooting
5-7
system management functions
1-15
upgradable memory modules
noise
2-9
amplified thermal
L
laser transmitter
clock card
funneling
4-4
upconverter
3-25
port adapters
4-41
3-26
normal status level, environmental monitor
5-5
power supply
1-23, 5-3
lifting the chassis
2-2
lightning storm, safety during
logical interface number
NTSC frequency allocation
E-3
NTSC standard, description
E-1
NVRAM log
E-8
6-2
2-4
1-7
O
offset
M
OIR
4-13
1-2, 6-1, 6-2
online insertion and removal, see OIR
1-7, 1-9
operating conditions for chassis
4-39
A-1
out-of-tolerance temperature condition
2-7
messages, environmental
6-3, 6-4
xiii
NTSC (M) frequency allocations
5-8
measure amplitude
4-10
4-8
note, description of
1-18, 5-3
power subsystem
MAC addresses
4-3
phase noise measurement
5-8
I/O controller
4-3
4-3
outside plant
5-9
enabled on interface processors
midplane
4-3
ingress
cable interface cards
messages
electrical
impulse
4-15
LEDs
DC OK
1-16
6-4
out-of-tolerance voltage condition
overheating, preventing
1-2, 1-28
6-2
6-2
2-7
overtemperature conditions
5-3
N
P
network example
1-11
network interface
1-7
network processing engine
packet
1-2, 1-4
4-41
packetized voice
1-1
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IN-5
Index
PAL
ungrounded
1-1, E-1
PAL frequency allocation
E-10
PAL standard, description
E-1
power connections
parameters
downstream RF channel characteristics
electrical input and output
PCI bus
ping
1-7, 1-8, 1-9
4-12, 4-14
ATM
6-3
1-24
1-6
1-24
2-7
1-23, 5-3
1-23
6-3
5-3
1-24, 2-2
4-44
prepare for two-way data operation
problem solving, subsystem
2-4
2-12
5-2
procedures
physical description
safety information
checking the shipping container
1-19
connecting clock card cables
8
1-20
1-22
subsystem for troubleshooting
port adapter slots
5-8
2-11
3-15
connecting I/O controller cables
3-15
connecting interface card cables
3-15
connecting port adapter cables
connecting power
1-8, 1-9
power
3-14
3-20
copying images between flash memory cards
AC, site requirements
cord
1-5
preamble power
2-7
1-21
SONET
Cisco uBR7246
wire gauge
1-20
1-20
Serial
1-4
troubleshooting
handling
HSSI
Cisco uBR7223
shutdown
1-22
filler panel
GigE
1-2
physical description
1-20
2-5
4-52, 4-53
power supply
LEDs
3-14
Ethernet
B-7
filler panel
1-1, 1-6
chassis and IOS release
DPT
power rating
B-3, B-5
current rating
1-21
cables
3-20
Cisco uBR7246VXR
C-3, C-4, C-5
port adapters
3-22
circuit breaker or fuse
2-16
4-38, 4-39, 4-40
pinouts
DC power
and environmental monitor
4-15
phase noise
3-21
power factor corrector, power supply
upstream RF channel characteristics, EuroDOCSIS
pass-through
AC power
overview
B-2, B-4, B-6
B-8
upstream RF channel characteristics
passive loss
2-3
copying images to a flash memory card
2-5
formatting a new flash memory card
1-23, 5-5
cord safety
general installation
2-1
DC, site requirements
DC power threshold
emergency power-off switch
subsystem, for troubleshooting
surge suppression
processor shutdown
6-3
2-16
2-3
5-2
AAA server
6-9
3-3
6-2
processor troubleshooting
provisioning
6-10
3-13
rack-mounting the chassis
2-6
6-11
5-2
2-14, 2-15, 2-16
2-15
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Index
access server
2-15
SECAM
diplex filters
2-14
SECAM frequency allocation
E-10
SECAM standard, description
E-1
1-1
show commands
Q
show environment
QAM analyzer manufacturers
QPSK data points
G-2, G-4
show environment last
shutdown
4-45
signal loss
R
site log
rack-mount installation
2-16
2-15
H-1
5
2-5
DC power
2-6
2-6
equipment racks
2-17
general precautions
analyzing the upstream signal
configuring the signal
measuring the signal
4-18 to 4-30
4-35
slot/port numbers for interfaces
SNMP, management
A-1, A-3, A-5
measure RF signal
RJ-45 connector pinout
rollover cables
splitter manufacturers
C-4
spurs
C-3
4-18 to 4-30
status
1-1
G-1, G-3
3-24
6-3, 6-4
status, environmental
1-15
straight-through cables
2-7
C-5, C-6
subchassis, physical description
S
G-2, G-4
4-11
startup, system
C-3
router overview
4-18 to 4-23
spectrum analyzer manufacturers
C-6
DB-9 adapter
4-24 to 4-30
channel power option
C-2, C-5
DB-25 adapter
1-7
1-15
CATV mode option
RJ-45 connector
2-7
spectrum analyzer, using
B-1, B-2
2-16
10BASE-T
2-16
specifications
4-11
specifications
plant wiring
2-6
power considerations
4-17
measuring the upstream signal
output signal
4-38
2-20
2-5
AC power
environment
B-1
RF
RSIC
4-4
site requirements
2-11, 3-3
regulatory compliance information
RFI
4-17
site preparation checklist
3-1
radio frequency interference (RFI)
rate, symbol
6-5
6-2, 6-6
signal level meter
RADIUS dial server
6-4
show environment table
4-46
QPSK demodulation mode
rack-mount kit
2-7, 6-4
1-28
subsystems for troubleshooting
safety information
cable interface cards
5
safety recommendations
2-1
clock card
5-9
5-8
I/O controller
5-7
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IN-7
Index
network processing engine
port adapters
power
5-10
TV channel modulator
5-5
4-17
1-24
4-14, 4-42, 4-47
symbol rate
5-2
websites
5-8
switch, power
symbol
strategy
5-7
4-9, 4-14, 5-11, B-1, B-8, B-9
symbol rate combinations
4-42
upconverter, installing
system configurations, overview
system specifications
U
1-10
A-1
4-4
upconverter, using
define narrowcast frequencies
set the input level
4-5, 4-6
set the output level
T
4-6, 4-7
upconverter manufacturers
tap manufacturers
upconverters
G-1, G-3
telco return, overview
2-17, 3-1
upstream data burst
4-33
4-35 to 4-41
4-42, 4-43
variable transmit levels
thresholds, shutdown
6-2
D-1
4-43
timesaver, description
tools, for installation
2-14
VoIP
xiii
4-19
1-13, 2-16
VPN example
1-12
2-9
transmission characteristics
B-2, B-3, B-4, B-5, B-6, B-7
W
troubleshooting
cable interface cards
5-9
warning
5-8
battery handling
cooling subsystem
5-6
chassis lifting
5-7
identifying startup problems
network processing engine
port adapters
video averaging
G-2, G-4
voice over IP, see VoIP
time-of-day (TOD) server
I/O controller
4-4
vector signal analyzer manufacturers
TIA/EIA standards information
clock card
4-31 to 4-34
V
2-14
6-1
time domain
4-38 to 4-41
4-34
HFC network
This
analyzing RF signal
measuring RF signal
6-2
test points
TFTP server
2-13
connecting and configuring
2-4
temperature, internal chassis
calibrating
G-1, G-3
upstream
1-13
telco-type equipment racks
telephone jacks
4-7
5-8
power subsystem
5-3
5-7
2-2
3-11, 3-13
DC power disconnection
3-22
DC power supply wiring
3-23
disconnect device warning
ground conductor
5-5
processor subsystem
ground connection
3-22
3-21
3-22
5-6
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IN-8
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Index
grounded equipment
3-20
hazardous voltages in WAN ports
installation
3-14, 3-15
3-20
jewelry removal
3-20
lightning activity
2-4
power cabling
3-22
power supply
3-20
power supply disconnection
product disposal
2-4
2-2
qualified personnel
2-2
restricted area (DC installations only)
safety precautions
3-11
service personnel
2-2
stacking the chassis
supply circuit
3-13
3-20
telecommunications lines
TN power
3-22
2-4
3-21
warning status level, environmental monitor
warnings translated
weight
6-3
10
1-4, 1-5, 1-7
wiring
interference
2-16
optical color codes
plant
D-2
2-16
telephone
2-4
telephone color codes
D-3
telephone station, terminal color codes
D-5
X
X-level test points
4-33
Z
zero-span
4-42
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
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IN-9
Index
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
IN-10
78-10243-03