Cisco Remote-PHY Compact Shelf Hardware Installation Guide

Cisco Remote-PHY Compact Shelf Hardware Installation Guide
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CHAPTER
1
Cisco Remote-PHY Solution Overview
• Introduction, page 1
• Benefits, page 2
• Architecture Overview, page 2
• Cisco Cable Modem Termination System, page 3
• Cisco Remote-PHY Compact Shelf , page 3
• Cisco CCAP RF Line Card for R-PHY, page 11
• Cisco Digital Physical Interface Card, page 11
Introduction
Driven by market evolution towards triple-play services, cable operators in emerging markets are seeking
standardized and digital fiber-based solutions for economical and future proof access technologies. Much of
the demand is driven by the need to provide higher bandwidth packet transport for Internet connectivity, video
and voice services.
Data Over Cable Systems Interface Standard (DOCSIS®) is a standardized technology for services over cable
and thus has strong interoperability between system providers. It also provides robust Quality of Service (QoS)
methods, ensuring packet delivery during periods of network congestion. Traditionally, DOCSIS runs on
linear fiber (or HFC) to provide service and is not naturally applicable for digital fiber. Cisco has bridged the
gap by introducing a new access technology called the Remote-PHY.
Existing Architecture
In the emerging markets, most triple-play consumers live in multi-tenant buildings (referred to as Multi
Dwelling Units or MDU) with the number of residents usually being less than 500 residents per building or
cluster. These buildings are typically served by fiber with one of several “final 100 meter” technologies installed
in the buildings. These technologies include fiber, twisted pair, Ethernet, and coaxial. Cable operators have
access to the cable in the building and use this cable for their services. Several technologies exist for enabling
two-way services over cable. These include a number of proprietary and vendor-specific methods. However,
a standards-based approach to using cable is typically preferred by operators, since this ensures vendor
interoperability.
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Cisco Remote-PHY Solution Overview
Benefits
Need for the Cisco Remote-PHY Solution
DOCSIS and EuroDOCSIS are standards that define two-way operation over a cable network. DOCSIS
provides the necessary Quality of Service (QoS) tools for ensuring voice call connectivity during periods of
network congestion that are anticipated in triple-play networks. DOCSIS is a robust and mature technology
for voice, video, and IP video services.
The Cisco Remote-PHY solution leverages existing IP technologies and deploys DOCSIS in remote field
over digital fiber to enable two-way services over cable.
Benefits
The Cisco Remote-PHY solution provides a cost-effective digital fiber-based DOCSIS solution that uses
Metro Ethernet (MetroE) as the transmission network between the Cisco CMTS and the cable modem.
• Reduced investment cost including capital and operational expenditure.
• Reduced CMTS hardware complexity.
• No restriction on Converged Interconnect Network (CIN) network.
• Futureproof architecture. Easy to migrate as the hardware and control functions are on separate layers.
• End-to-end QoS assurance provided by DOCSIS.
• Support for all DOCSIS services.
• Support for existing DOCSIS network provisioning system.
• High access bandwidth.
• With deep fiber, the optical noise contribution to SNR is eliminated. As a result, the remote QAM
modulator runs at higher orders of modulation as compared to a centralized QAM modulator.
Architecture Overview
Modular Headend Architecture version 2 (MHAv2) is a set of specifications for the Cisco Remote-PHY
solution. It uses digital fiber compatible baseband networking technology to drive the fiber portion of the
HFC plant. The coaxial portion of the plant remains the same. The upstream and downstream PHY are located
on the remote side and acts as the remote PHY system. The Cisco Remote-PHY Compact Shelf acts as the
remote PHY system. It connects the digital fiber and the coaxial portions of the plant together. The remote
PHY system resides near or in buildings and has both RFI and Gigabit Ethernet interfaces. It provides layer
1 PHY (downstream and upstream PHY) functionality, layer 2 MAC functionality, and layer 3 tunneling and
forwarding support. The CMTS remains unchanged with the exception of the upstream and downstream PHY
being moved to the remote PHY system. The Cisco RF line card installed in the Cisco CMTS does not have
the RFI interfaces for downstream and upstream, instead, it has Gigabit Ethernet interfaces for both downstream
and upstream.
Protocols that form this architecture include:
• Downstream External PHY Interface Decapsulation—Downstream External PHY Interface (DEPI) is
a L2TPv3-based protocol defined for downstream DOCSIS MAC management and data packets
decapsulation. It is unidirectional, that is, from CMTS to remote PHY system.
DEPI supports:
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Cisco Remote-PHY Solution Overview
Cisco Cable Modem Termination System
◦IP/User Datagram Protocol (UDP)
◦DOCSIS MPT Mode (D-MPT)/Packet Streaming Protocol (PSP)
• Upstream External PHY Interface Encapsulation—Upstream External PHY Interface (UEPI) is a
L2TPv3-based protocol defined for upstream DOCSIS MAC management and data packets encapsulation.
It is unidirectional, that is, from remote PHY system to CMTS.
UEPI:
◦Does not support UDP
◦Supports PSP mode only
◦Supports multiple pseudowires for RNG/BW-REQ/SPECTRUM-MGMT/MAP
• GCP—Generic Control Protocol, sets up a control plane tunnel over a generic transport protocol such
as TCP or UDP. GCP is used to program the remote PHY system upstream and downstream parameters
from the CMTS. It is also used to control the remote PHY system.
GCP supports:
◦TCP/UDP
◦DS/US PHY configuration and CMC provisioning/configuration
◦Register mode and type, length, value (TLV) mode
◦Notification
Cisco Cable Modem Termination System
The Cisco cBR converged broadband router acts as the Cable Modem Termination System (CMTS) core for
the Cisco Remote-PHY architecture.
Following are its functions:
• Assigns downstream and upstream channels of the Cisco RF line card to the Cisco Remote-PHY Compact
Shelf.
• Performs MAC classification, forwarding, and management functions.
• Handles the Cisco Remote-PHY Compact Shelf configuration and management.
For more information on the Cisco CMTS, go to Cisco cBR Series Converged Broadband Routers page.
Cisco Remote-PHY Compact Shelf
Below are some of the features of the Cisco Remote-PHY Compact Shelf:
• Full spectrum DOCSIS 3.0 support
• Full spectrum DOCSIS 3.1 support
• Converged broadcast, narrowcast, and VOD video support
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Cisco Remote-PHY Solution Overview
Cisco Remote-PHY Compact Shelf
• Out of Band (OOB) signaling support
• Dual 10GBE SFP+ backhaul connectivity
• CCAP support
• Support of optical overlay architectures
Figure 1: Cisco Remote-PHY Compact Shelf
For the product described in this document both downstream and upstream PHY functionality is located in a
shelf at the Headend, Hub or VHUB (Virtual Hub). The output of the Cisco Remote-PHY Compact Shelf
feeds a conventional HFC network with optical nodes and RF amplifier cascades. The Cisco Remote-PHY
Compact Shelf is intended to interact with the cBR-8 router, via a digital physical interface card (D-PIC) and
the Cisco CCAP RF Line Card for Remote-PHY.
There are two models for Cisco Remote-PHY Compact Shelf: Cisco Remote-PHY Compact Shelf 6 x 12 and
Cisco Remote-PHY Compact Shelf 3 x 6. The have the same functions, the only difference is the number of
RPD modules integrated in the device. Cisco Remote-PHY Compact Shelf 6 x 12 has 6 RPD modules, Cisco
Remote-PHY Compact Shelf 3 x 6 has 3 RPD modules.
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Cisco Remote-PHY Solution Overview
Front View
Front View
The following figure shows the front of the Cisco Remote-PHY Compact Shelf.
Figure 2: Cisco Remote-PHY Compact Shelf 6 x 12 Front View
Figure 3: Cisco Remote-PHY Compact Shelf 3 x 6 Front View
1
0, 1 - 10GE SFP+ port
6
Management port LED
2
ETH - RJ-45 management port
7
Power supply LED
3
A, S, P - Alarm, Status, Power LED
8
PS0 – Power supply 0
4
SFP LED
9
PS1 – Power supply 1
5
CON - RJ-45/RS-232 compatible console port
The following table shows the meaning of LED on the front panel of the Cisco Remote-PHY Compact Shelf.
Table 1: Cisco Remote-PHY Compact Shelf LEDs
No. LED Label
Description
Behavior
Meaning
1
S
Status
Blinking
Normal.
2
P
Power
Green
Power on.
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Cisco Remote-PHY Solution Overview
Rear View
No. LED Label
Description
Behavior
Meaning
3
A
Alarm
Yellow
RPD module error, check the console logging.
4
SFP 0/1
LED
Link status
Green
Link is up.
5
ETH LED
Link status
Green
Link is up.
Rear View
The following figure shows the rear of the Cisco Remote-PHY Compact Shelf.
Figure 4: Cisco Remote-PHY Compact Shelf 6 x 12 Rear View
Figure 5: Cisco Remote-PHY Compact Shelf 3 x 6 Rear View
1
Downstream port cluster
2
Upstream port cluster
3
Fans
The chassis has a front-to-rear airflow. Five internal fans draw cooling air into the chassis and across internal
components to maintain an acceptable operating temperature. The fans are numbered from 1 to 5, right to left.
Two power supplies (AC or DC) are accessed from the front of the device and are hot-swappable.
Power Supplies
The Cisco Remote-PHY Compact Shelf support AC or DC power supply options. The modular chassis
configurations support the installation of two power supplies for redundancy, the current sharing feature is
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Cisco Remote-PHY Solution Overview
Power Supplies
supported when two power suppliers are installed in the system. When an external power supply fails or is
removed, the other power supply provides power requirements for the chassis. This allows you to hot-swap
the power supply without impacting the functionality of the device.
Caution
Cisco Remote-PHY Compact Shelf can support two AC or two DC power supplies. Do not install mixed
AC and DC power supply units in the same chassis.
The following table lists the power supplies that you can order:
Caution
Part Number
Power Supply
341-100761-01
Cisco Remote-PHY Compact Shelf DC Power Supply
341-100760-01
Cisco Remote-PHY Compact Shelf AC Power Supply
The chassis has a front-to-rear airflow. All of the power supplies and fan modules in the chassis must use
the same airflow direction or an error will occur with possible overheating and shut down of the Cisco
Remote-PHY Compact Shelf. If you power up the Cisco Remote-PHY Compact Shelf with more than
one airflow direction, you must power down the Cisco Remote-PHY Compact Shelf and replace the
modules with the wrong airflow direction before powering up the Cisco Remote-PHY Compact Shelf.
AC Power Supply
The AC power supply input connector is IEC60320 C16, equiped with standard input AC power cord. The
power sypply has a handle to be used for insertion and extraction.
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Cisco Remote-PHY Solution Overview
Power Supplies
The following figure shows the Cisco Remote-PHY Compact Shelf AC power supply.
Figure 6: AC Power Supply Used in the Cisco Remote-PHY Compact Shelf
1
FAIL and OK LEDs
3
AC power connector
2
Handle
4
Retaining latch
DC Power Supply
The DC power supply input connector is a two-wire connector with connection polarity from left to right
(when facing the unit) of positive (+) negative (–).
The power supply has a handle to be used for insertion and extraction. The module must be supported with
one hand when installing into or removing from Cisco Remote-PHY Compact Shelf.
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Cisco Remote-PHY Solution Overview
Power Supplies
The following figure shows the Cisco Remote-PHY Compact Shelf DC power supply.
Figure 7: DC Power Supply Used in the Cisco Remote-PHY Compact Shelf
1
DC power connections
3
Retaining latch
2
Handle
4
FAIL and OK LEDs
Power Supply LEDs
The following table describes the power supply LEDs.
Table 2: AC and DC Power Supply LEDs
Power Supply Condition
Green (OK) LED Status
Amber (FAIL) LED Status
No AC power to all power supplies
OFF
OFF
Power Supply Failure (includes over voltage, over OFF
current, over temperature and fan failure)
ON
Power Supply Warning events where the power
OFF
supply continues to operate (high temperature, high
power and slow fan)
1Hz Blinking
AC Present/3.3VSB on (PSU OFF)
OFF
1Hz Blinking
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Cisco Remote-PHY Solution Overview
Power Supplies
Power Supply Condition
Green (OK) LED Status
Amber (FAIL) LED Status
Power Supply ON and OK
ON
OFF
Power Supply Fans
The fans in the power supply module are used for cooling the power supply module itself while system-level
cooling is provided by fans within the chassis. The power supplies do not depend on the system-level fans
for cooling. Fan failure is determined by fan-rotation sensors.
Note
The fans in the power supply modules will run as soon as the power supply is plugged in.
Power Cords
The following table lists the supported power cords.
Power Cord Item Number
Description
CAB-AC-ARG
Power Cord - Argentina, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-AUS
Power Cord - Australia, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-BRA
Power Cord - Brazil, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-CHI
Power Cord - China, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-EUR
Power Cord - Europe, 16/10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-IND
Power Cord - India, 16/10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-ISR
Power Cord - Israel, 16/10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-ITL
Power Cord - Italy, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-KOR
Power Cord - Korea, 16/10A, 125V, 2500mm, -40°C to +85°C
CAB-AC-SUI
Power Cord - Swiss, 10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-TAI
Power Cord - Taiwan, 15/10A, 125V, 2500mm, -40°C to +85°C
CAB-AC-UK
Power Cord - UK, 13/10A, 250V, 2500mm, -40°C to +85°C
CAB-AC-US
Power Cord - US, 15A, 125V, 2500mm, -40°C to +85°C
PWR-CAB-AC-JPN
Power Cord for AC V2 Power Module (Japan)
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Cisco Remote-PHY Solution Overview
Fan Tray
Fan Tray
The fan tray is a field replaceable unit which can be replaced on site when required.
Follow the steps below to replace a fan tray:
1 Pull out the fan tray for about 0.5 inch.
2 Wait for the fan blades are totally stopped.
Danger
Rotating fan blades can cause serious injury during fan tray removal or replacement.
3 Pull out the fan tray completely and replace it with a new fan tray.
Cisco CCAP RF Line Card for R-PHY
The Cisco CCAP RF line card for remote PHY architecture is available in two flavours:
• CBR-LC-8D31-16U30—This RF line card with the downstream and upstream PHY modules can be
connected with the Cisco Remote-PHY Compact Shelf by configuring it using the card
cBR-CCAP-LC-40G r-phy command.
• CBR-CCAP-LC-40G-R—This RF line card with no downstream and upstream PHY modules can be
connected with the Cisco Remote-PHY Compact Shelf.
Cisco Digital Physical Interface Card
The Cisco Digital Physical Interface Card (DPIC) transmits and receives RF signals between the subscriber
and headend over the hybrid fiber-coaxial (HFC) system and is DOCSIS-compliant. This interface card is
designed specifically for the Cisco cBR router and conforms to the Integrated CMTS (I-CMTS) architecture.
The PID is cBR-DPIC-8X10G.
The DPIC is installed in the CMTS and connected to the Cisco Remote-PHY Compact Shelf via the Metro
Ethernet. It supports both downstream and upstream traffic. Both the downstream and upstream traffic share
the same ports.
Table 3: Physical Specifications of the DPIC
Unit
Dimensions
Width
10.96 in (27.8cm)
Height
1.43 in (3.6cm)
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Cisco Remote-PHY Solution Overview
Cisco Digital Physical Interface Card
Unit
Dimensions
Depth
7.32 in (18.6cm) with handle
Weight
2.943lb (1.335kg)
The DPIC supports:
• Eight ten gigabit ethernet SFP+ interfaces
• 80 gigabit non-blocking switching architecture with 40+40 protection scheme
• 40 gigabit DOCSIS traffic bandwidth when connected with the Cisco CBR-CCAP-LC-40G-R line card
• Cisco SFP-10G-SR-S/Cisco SFP-10G-LR-S/Cisco SFP-10G-ZR-S/Cisco SFP-10G-ER-S optic modules
• MACSec and 1588 TC
The faceplate of the Cisco DPIC has the following:
• Optic Cable Clip—Helps route and manage the optic cables.
• 8 x SFP+ ports—Used as 8 x 10GE lanes for DOCSIS traffic to the Cisco RPDs.
• 10GE Link Status LED—Indicates the status of the 10GE link.
• Status LED—Indicates the status of the Cisco DPIC.
• Replace LED—Indicates the Cisco DPIC must be replaced.
Onboard Failure Logging
The Onboard Failure Logging (OBFL) feature enables the storage and collection of critical failure information
in the nonvolatile memory of a Field Replaceable Unit (FRU), like a route processor (RP) or line card. The
data stored through OBFL assists in understanding and debugging the field failures upon Return Material
Authorization (RMA) of a RP or line card at repair and failure analysis sites. OBFL records operating
temperatures, voltages, hardware uptime, and any other important events that assist board diagnosis in case
of hardware failures.
For more information about the feature, see Onboard Failure Logging.
Note
The sample output provided in the Onboard Failure Logging guide may vary slightly for the Cisco CMTS
routers.
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CHAPTER
2
Cisco Remote-PHY Solution Deployment
• Design Considerations, page 13
• Network Architecture, page 14
• Network Topologies, page 14
• Network Cables, page 15
Design Considerations
This section helps you prepare for deploying the Cisco Remote-PHY solution.
Prerequisites
• Ensure that a digital optical network is deployed between the Cisco Remote-PHY Compact Shelf and
Cisco CMTS. The supported digital optical network is Metro Ethernet.
• Ensure that the data path is guaranteed between the Cisco CMTS and the Cisco Remote-PHY Compact
Shelf.
• Reserve sufficient bandwidth for the DOCSIS traffic.
• Network must support IPv4 multicast forwarding.
• Ensure that the maximum latency is as low as possible.
• Based on the input type in the network, deploy or use the appropriate type of R-PHY device.
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Cisco Remote-PHY Solution Deployment
Network Architecture
Network Architecture
The Cisco Remote-PHY solution supports the Single Controller Sharing architecture. In this architecture,
multiple Cisco Remote-PHY Compact Shelves share the downstream and upstream channels of a Cisco RF
line card in a cisco cBR chassis.
Figure 8: Single Controller Sharing Architecture
Network Topologies
The Cisco Remote-PHY solution supports Ethernet Based Networking topology.
Figure 9: Standard Deployment
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Cisco Remote-PHY Solution Deployment
Network Cables
Network Cables
Table 4: Cable Types Supported for the Cisco Remote-PHY Solution
Originating Device
Target Device
CMTS (Ten Gigabit Ethernet Switch
SFP+ module on the Cisco
CCAP line card)
Switch
Cisco Remote-PHY
Compact Shelf
Cable Type
Connector Type
Ethernet cables
RJ-45 connector
Copper cables
RJ-45 connector
Optical fiber
LC Fiber-Optic connector
Optical fiber
LC Fiber-Optic connector
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Cisco Remote-PHY Solution Deployment
Network Cables
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CHAPTER
3
Preparing for the Installation
Before you install the Cisco Remote-PHY solution, consider the following:
• Power and cabling requirements that must be in place at your installation sites
• Equipment required to install the Cisco Remote-PHY solution
• Environmental conditions your installation site must meet to maintain normal operation
Note
Do not unpack the equipment until you are ready to install it. Keep the equipment in the shipping container
to prevent accidental damage until you determine an installation site.
• Prerequisites and Preparation, page 17
• Safety Guidelines, page 18
• General Safety Warnings, page 19
• Site Planning, page 20
• Preventing Electrostatic Discharge Damage, page 31
• Electrical Safety, page 32
• Chassis-Lifting Guidelines, page 33
• Tools and Equipment, page 33
• Unpacking and Verifying Shipping Contents, page 34
• Installation Checklist, page 35
Prerequisites and Preparation
Before you perform the procedures in this guide, we recommend that you:
• Read the safety guidelines in the next section and review the electrical safety and ESD-prevention
guidelines in this guide.
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Preparing for the Installation
Site Planning Checklist
• Ensure that you have all of the necessary tools and equipment.
• Ensure that the power and cabling requirements are in place at your installation site.
• Ensure that the equipment required to install the device is available.
• Ensure that your installation site meets the environmental conditions to maintain normal operation.
Before installing the device, you must consider power and cabling requirements that must be in place at your
installation site, special equipment for installing the device, and the environmental conditions your installation
site must meet to maintain normal operation.
The shipping package for the device is engineered to reduce the chances of product damage associated with
routine material handling experienced during shipment:
• Device should always be transported or stored in its shipping package in the upright position.
• Keep the device in the shipping container until you have determined the installation site.
Note
Inspect all items for shipping damage. If an item appears damaged, contact a Cisco customer service
representative immediately.
Site Planning Checklist
Use the following checklist to perform and account for all the site-planning tasks described in this chapter:
• The site air conditioning system can compensate for the heat dissipation of the device.
• Electrical service to the site complies with the requirements.
• The electrical circuit servicing the device complies with the requirements.
• Consideration has been given to console port wiring and limitations of the cabling involved, according
to TIA/EIA-232F.
• The Ethernet cabling distances are within limitations.
• The equipment rack in which you plan to install the chassis complies with requirements. Careful
consideration has be given to safety, ease of maintenance, and proper airflow in selecting the location
of the rack.
Safety Guidelines
Before you begin the installation or replacement procedure, review the safety guidelines in this section to
avoid injuring yourself or damaging the equipment.
Note
This section contains guidelines, and do not include every potentially hazardous situation. When you
install the device, always use common sense and caution.
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Preparing for the Installation
Safety Warnings
Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm
you. A warning symbol precedes each warning statement.
Before you install, configure, or perform maintenance on the device, review the documentation for the procedure
you are about to perform, paying special attention to the safety warnings.
Note
Do not unpack the device until you are ready to install it. Keep the chassis in the shipping container to
prevent accidental damage until you determine an installation site. Use the appropriate unpacking
documentation included with the device.
Read the installation instructions in this document before you connect the device to its power source. Failure
to read and follow these guidelines could lead to an unsuccessful installation and possibly damage the device
and components.
Safety Recommendations
The following guidelines will help to ensure your own safety and protect your Cisco equipment. This list does
not cover all potentially hazardous situations, so be alert.
• Never attempt to lift an object that might be too heavy for you to lift by yourself.
• Always turn all power supplies off and unplug all power cables before opening the chassis.
• 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. Fasten your tie or scarf and sleeves.
• The device operates safely when it is used in accordance with its marked electrical ratings and
product-usage instructions.
General Safety Warnings
This section lists some of the safety warnings applicable to the Cisco Remote-PHY Compact Shelf. For the
other applicable safety warnings, see Regulatory Compliance and Safety Information for the Cisco Remote-PHY
Compact Shelf.
Warning
Statement 1073—No User-Serviceable Parts
No user-serviceable parts inside. Do not open.
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Preparing for the Installation
Site Planning
Warning
Statement 1005—Double Pole Circuit Breaker
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than:
• AC: 20 A U.S. maximum
• DC: 20 A U.S. maximum
Warning
Statement 1019—Main Disconnecting Device
The plug-socket combination must be accessible at all times, because it serves as the main disconnecting
device.
Warning
Statement 1086—Power Terminals, Replace Cover
Hazardous voltage or energy may be present on power terminals. Always replace cover when terminals
are not in service. Be sure uninsulated conductors are not accessible when covers is in place.
Site Planning
This section contains site-planning information, and will help you plan for the installation of the Cisco
Remote-PHY Compact Device Shelf.
General Precautions
Observe the following general precautions when using and working with the Cisco Remote-PHY Compact
Device Shelf:
• Keep your system components away from radiators and heat sources and do not block cooling vents.
• Do not spill food or liquids on your system components and never operate the product in a wet
environment.
• Do not push any objects into the openings of your system components. Doing so can cause fire or electric
shock by shorting out interior components.
• Position system cables and power supply cable carefully. Route system cables and power supply cable
and plug such that they cannot be stepped on or tripped over. Be sure that nothing else rests on your
system component cables or power cable.
• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site
modifications. Always follow your local and national wiring rules.
• If you turn off your system, wait at least 30 seconds before turning it on again to avoid system component
damage.
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Preparing for the Installation
Site Selection Guidelines
Site Selection Guidelines
The Cisco Remote-PHY Compact Device Shelf require specific environmental operating conditions.
Temperature, humidity, altitude, and vibration can affect the performance and reliability of the device. The
following sections provide specific information to help you plan for a proper operating environment.
Site Environmental Requirements
Environmental monitoring protects the system and components from damage caused by excessive voltage
and temperature conditions. To ensure normal operation and avoid unnecessary maintenance, plan and prepare
your site configuration before installation. After installation, make sure the site maintains the environmental
characteristics, as shown in the following table.
Environmental Requirements for the Cisco Remote-PHY Compact Shelf
The table below lists the operating and non-operating environmental site requirements. The ranges listed are
those within which the equipment 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 a maximum operating range.
Table 5: Specifications for Operating and Non-operating Environments for the Cisco Remote-PHY Compact Shelf
Specification
Minimum
Power Consumption
6*12: Typical 510W
3*6: Typical 310W
Thermal Heat Dissipation
6*12: Typical 510W
3*6: Typical 310W
Mean Time Between Failure (MTBF)
6*12: 121,480 hours
3*6: 209,150 hours
Temperature Range
Operating: -40 to 140°F (-40 to 60°C)
Non-operating: -40 to 185°F (-40 to 85°C)
Relative Humidity
5 to 90% non-condensing
Operating Altitude
0 to 10000 ft (0 to 3048 m)
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Preparing for the Installation
Site Selection Guidelines
Environmental Requirements for the Cisco CCAP RF Line Card
The table below lists the operating and non-operating environmental site requirements. The ranges listed are
those within which the equipment 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 a maximum operating range.
Table 6: Specifications for Operating and Non-operating Environments for the Cisco CCAP RF Line Card
Specification
Minimum
Power Consumption
211W
Thermal Heat Dissipation
211W
Mean Time Between Failure (MTBF)
360,870 hours
Temperature Range
Operating: 41 to 140°F (5 to 60°C)
Non-operating: -4 to 149°F (-20 to 65°C)
Relative Humidity
Operating: 10 to 90% non-condensing
Non-operating: 10 to 90%
Operating Altitude
-196 to 13,123 ft. (-60 to 4000 m)
Physical Characteristics
Be familiar with the physical characteristics of the Cisco Remote-PHY Compact Device Shelf to assist you
in placing the system at a proper location.
Note
For information regarding rack widths supported for the Cisco Remote-PHY Compact Device Shelf, see
General Rack-Selection Guidelines, on page 30.
The following table shows the weight and dimensions of the Cisco Remote-PHY Compact Device Shelf:
Table 7: Physical Characteristics of the Cisco Remote-PHY Compact Device Shelf
Characteristic
Cisco Remote-PHY Compact Device Shelf
Height
1.72 in. (43.69 mm)—1RU; rack-mount per EIA RS-310
Width
17.3 in. (439.42 mm)
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Site Power Guidelines
Characteristic
Cisco Remote-PHY Compact Device Shelf
Depth
21.78 in. (553.2 mm)
Depth includes card handles, cable-management brackets, and
power-supply handles
Weight
24 lb (11.3 kg)
The following list describes additional characteristics:
• Chassis height meets EIA-310 rack spacing 1RU (1.75 in. or 44.45 mm), universal rack mount
• Chassis width meets EIA-310 19 in. (17.3 in. or 439.42 mm) wide with rack brackets
• Ships with forward rack-mount brackets installed and an extra set included in the accessory kit
Site Power Guidelines
The Cisco Remote-PHY Compact Device Shelf has specific power and electrical wiring requirements. Adhering
to these requirements ensures reliable operation of the system. Follow these precautions and recommendations
when planning your site for the Cisco Remote-PHY Compact Device Shelf:
• The redundant power option provides a second, identical power supply to ensure that power to the chassis
continues uninterrupted if one power supply fails or input power on one line fails.
• In systems configured with the redundant power option, connect each of the two power supplies to a
separate input power source. If you fail to do this, your system might be susceptible to total power failure
due to a fault in the external wiring or a tripped circuit breaker.
• To prevent a loss of input power, be sure the total maximum load on each circuit supplying the power
supplies is within the current ratings of the wiring and breakers.
• Check the power at your site before installation, and periodically after installation, to ensure that you
are receiving clean power. Install a power conditioner if necessary.
• Provide proper grounding to avoid personal injury and damage to the equipment due to lightning striking
power lines or due to power surges. The chassis ground must be attached to a central office or other
interior ground system.
Caution
This product requires short-circuit (overcurrent) protection to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations.
Note
The Cisco Remote-PHY Compact Device Shelf installation must comply with all applicable codes and is
approved for use with copper conductors only. The ground bond fastening hardware should be of compatible
material and preclude loosening, deterioration, and electrochemical corrosion of hardware and joined
material. Attachment of the chassis ground to a central office or other interior ground system must be
made with an AWG #6 gauge wire, copper ground conductor at a minimum.
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Site Power Guidelines
Electrical Circuit Requirements
Each Cisco Remote-PHY Compact Device Shelf requires a dedicated electrical circuit. If you equip it with
dual-power feeds, you must provide a separate circuit for each power supply to avoid compromising the power
redundancy feature.
The Cisco Remote-PHY Compact Device Shelf can be powered by a DC or AC source. Ensure that equipment
grounding is present and observe power-strip ratings. Make sure that the total ampere rating of all the products
plugged into the power strip does not exceed 80 percent of the rating.
Note
The Cisco Remote-PHY Compact Device Shelf can support two AC or two DC power supplies. Do not
install mixed AC and DC power supply units in the same chassis.
The following table contains specifications for DC-powered systems for the Cisco Remote-PHY Compact
Device Shelf.
Table 8: Cisco Remote-PHY Compact Device Shelf DC Power Supply System Input Requirements
System Input Rating Circuit Breaker Rating (Amps)
(Amps)
AWG # Wire
12
10 or 12
20, double pole
The following table contains specifications for AC-powered systems for the Cisco Remote-PHY Compact
Device Shelf.
Table 9: Cisco Remote-PHY Compact Device Shelf AC Power Supply System Input Requirements
Note
System Input Rating (Amps)
Circuit Breaker Rating (Amps)
6
20, double pole
The Cisco Remote-PHY Compact Device Shelf AC power supply requires a 20 A circuit breaker.
The following table lists AC and DC power supply system rating requirements for the Cisco Remote-PHY
Compact Device Shelf.
Table 10: AC and DC Power Supply Specifications for the Cisco Remote-PHY Compact Device Shelf
Description
Specification
Power supply voltage range
AC = 90–264 VAC
DC = –40.5–72 VDC
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Site Cabling Guidelines
Description
Specification
Power supply declared ratings
AC = 100–240 VAC
DC = –48/–60 VDC
Line frequency rating
50/60 Hz for AC power supplies
Site Cabling Guidelines
This section contains guidelines for wiring and cabling at your site. When preparing your site for network
connections to the Cisco Remote-PHY Compact Device Shelf, consider the type of cable required for each
component, and the cable limitations. Consider the distance limitations for signaling, EMI, and connector
compatibility. Possible cable types are fiber, thick or thin coaxial, foil twisted-pair cabling, or unshielded
twisted-pair cabling.
Also consider any additional interface equipment you need, such as transceivers, hubs, switches, modems,
channel service units (CSUs), or data service units (DSUs).
Before you install the Cisco Remote-PHY Compact Device Shelf, have all the additional external equipment
and cables at hand. For ordering information, contact a Cisco customer service representative.
The extent of your network and the distances between network interface connections depend in part on the
following factors:
• Signal type
• Signal speed
• Transmission medium
The distance and rate limits referenced in the following sections are the IEEE-recommended maximum speeds
and distances for signaling purposes. Use this information as guidelines when planning your network
connections prior to installing the Cisco Remote-PHY Compact Device Shelf.
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 problems of this sort in the past, you may want to consult experts in electrical surge suppression and
shielding.
Console Port Connections
The Cisco Remote-PHY Compact Device Shelf provide console and auxiliary ports to connect a terminal or
computer for local console access.
Both ports have RJ-45 connectors, support RS-232 asynchronous data, and have distance recommendations
specified in the IEEE RS-232 standard.
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Site Cabling Guidelines
Interference Considerations
When wires are run for a significant distance, there is a risk that stray signals will be induced on the wires as
interference. If interference signals are strong, they can cause data errors or damage to the equipment.
The following sections describe sources of interference and how to minimize its effects on the Cisco
Remote-PHY Compact Device Shelf.
Electromagnetic Interference
All the equipment powered by AC current can propagate electrical energy that can cause electromagnetic
interference (EMI) and possibly affect the operation of other equipment. The typical sources of EMI are
equipment power cords and power service cables from electric utility companies.
Strong EMI can destroy the signal drivers and receivers in the Cisco Remote-PHY Compact Device Shelf
and even create an electrical hazard by causing power surges through power lines into installed equipment.
These problems are rare, but could be catastrophic.
To resolve these problems, you need specialized knowledge and equipment, which could consume substantial
time and money. However, you should ensure that you have a properly grounded and shielded electrical
environment, paying special attention to the need for electrical surge suppression.
The following table lists electrode magnetic compliance standards for the Cisco Remote-PHY Compact Device
Shelf.
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Site Cabling Guidelines
Table 11: EMC and Safety Standards
EMC Standards
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Site Cabling Guidelines
Electromagnetic Emissions Certification
• EN50083-2 - Europe
• KN 32 Class A - Korea
• FCC Part 15 Class A - United States
• ICES 003 Class A - Canada
• AS/NZS Class A - Australia
• CISPR 22 Class A - Europe
• EN55022 Class A - Europe
• VCCI Class A - Japan
• CNS13438 Class A - Taiwan
• IEC/EN61000-3-2 Power Line Harmonics - Europe
• IEC/EN61000-3-3 Voltage Fluctuations and Flicker - Europe
Immunity
• EN50083-2 - Europe
• CISPR 24 - Europe
• KN 35 - Korea
• IEC/EN61000-4-2 Electrostatic Discharge Immunity (8kV contact,
15kV air)
• IEC/EN61000-4-3 Radiated Immunity (10V/m)
• IEC/EN61000-4-4 Electrical Fast Transient Immunity (2kV power,
1kV signal)
• IEC/EN61000-4-5 Surge AC Port (4kV CM, 2kV DM)
• IEC/EN61000-4-5 Surge Signal Port (1kV)
• IEC/EN61000-4-5 Surge DC Port (1kV)
• IEC/EN61000-4-6 Immunity to Conducted Disturbances (10Vrms)
• IEC/EN61000-4-8 Power Frequency Magnetic Field Immunity
(30A/m)
• IEC/EN61000-4-11 Voltage Dips, Short Interruptions, and Voltage
Variations
European Telecommunication Standards Institute (ETSI)
• EN 300 386 Telecommunications Network Equipment (EMC)
• EN50083-2 Cable networks for television signals, sound signals
and interactive services
• EN55022 Information Technology Equipment (Emissions)
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Rack-Mounting Guidelines
• EN55024 Information Technology Equipment (Immunity)
• EN61000-6-1 Generic Immunity Standard
• EN61000-6-2 Generic Immunity Standard for Industrial
Environments
Safety Standards
UL60950-1
CSA C22.2 No. 60950-1-03
EN 60950-1
IEC 60950-1
AS/NZS 60950.1
IEC 60825-1
Radio Frequency Interference
When electromagnetic fields act over a long distance, radio frequency interference (RFI) can be propagated.
Building wiring can often act as an antenna, receiving the RFI signals and creating more EMI on the wiring.
If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the plant
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.
Lightning and AC Power Fault Interference
If signal wires exceed recommended cabling distances, or if signal wires pass between buildings, you should
consider the effect that a lightning strike in your vicinity might have on the Cisco Remote-PHY Compact
Device Shelf.
The electromagnetic pulse (EMP) generated by lightning or other high-energy phenomena can couple enough
energy into unshielded conductors to damage or destroy electronic equipment. If you have previously
experienced such problems, you should consult with RFI/EMI experts to ensure that you have adequate
electrical surge suppression and shielding of signal cables in your Cisco Remote-PHY Compact Device Shelf
operating environment.
Rack-Mounting Guidelines
This section describes guidelines on rack-mounting.
Precautions for Rack-Mounting
The following rack-mounting guidelines are provided to ensure your safety:
• Do not move large racks by yourself. Due to the height and weight of a rack, a minimum of two people
are required to accomplish this task.
• Ensure that the rack is level and stable before extending a component from the rack.
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Rack-Mounting Guidelines
• Ensure that proper airflow is provided to the components in the rack.
• Do not step or stand on any component or system when servicing other systems or components in a rack.
• When mounting the Cisco Remote-PHY Compact Device Shelf 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.
General Rack-Selection Guidelines
The Cisco Remote-PHY Compact Device Shelf can be mounted in most two-post 19-in. equipment racks that
comply with the Electronics Industries Association (EIA) standard for equipment racks (EIA-310-D 19-in.).
The rack must have at least two posts with mounting flanges to mount the chassis.
Caution
When mounting a chassis in any type of rack equipment, ensure that the inlet air to the chassis does not
exceed 131°F (55°C).
The distance between the center lines of the mounting holes on the two mounting posts must be 18.31 in.
±0.06 in. (46.50 cm ± 0.15 cm). The rack-mounting hardware included with the chassis is suitable for most
19-in. (48.3-cm) equipment racks.
Consider installing the Cisco Remote-PHY Compact Device Shelf in a rack with the following features:
• 19-in. (48.3-cm) wide rack.
• EIA or ETSI hole patterns in the mounting rails. Required mounting hardware is shipped with the Cisco
Remote-PHY Compact Device Shelf. If the rack that you plan to install the system in has metric-threaded
rails, you must provide your own metric-mounting hardware.
• Perforated top and open bottom for ventilation to prevent overheating.
• Leveling feet for stability.
Note
The Cisco Remote-PHY Compact Device Shelf should not be installed in an enclosed rack because the
chassis requires an unobstructed flow of cooling air to maintain acceptable operating temperatures for its
internal components. Installing the device in any type of enclosed rack—even with the front and back
doors removed—could disrupt the air flow, trap heat next to the chassis, and cause an overtemperature
condition inside the device. If you use an enclosed rack, make certain that there are air vents on all sides
of the rack and there is proper ventilation.
Equipment Rack Guidelines
The placement of racks can affect personnel safety, system maintenance, and the system’s ability to operate
within the environmental characteristics. Choose a proper location for the Cisco Remote-PHY Compact Device
Shelf by following the guidelines below.
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Preventing Electrostatic Discharge Damage
Locating for Safety
If the Cisco Remote-PHY Compact Device Shelf is the heaviest or the only piece of equipment in the rack,
consider installing it at or near the bottom to ensure that the rack’s center of gravity is as low as possible.
Locating for Easy Maintenance
Keep at least 3 feet of clear space in front of and behind the rack. This space ensures that you can remove the
Cisco Remote-PHY Compact Device Shelf components and perform routine maintenance and upgrades easily.
Avoid installing the Cisco Remote-PHY Compact Device Shelf in a congested rack and consider how the
routing of cables from other pieces of equipment in the same rack might affect access to the device.
The front and top of the chassis must remain unobstructed to ensure adequate airflow and prevent overheating
inside the chassis.
Allow the following clearances for normal system maintenance:
• At the top of the chassis—At least 3 in. (7.6 cm)
• At the bottom of the chassis—At least 0.2 in. (5 mm)
• In front of the chassis and behind the chassis—3 to 4 ft (91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operation, follow these general precautions when you plan
the equipment locations and connections:
• Use the show environment all and the show facility-alarm status commands regularly to check the
internal system status. The environmental monitor continually checks the interior chassis environment;
it provides warnings for high temperature and creates reports on any occurrences. If warning messages
are displayed, take immediate action to identify the cause and correct the problem.
• Keep the Cisco Remote-PHY Compact Device Shelf off the floor and out of the areas that collect dust.
• Follow ESD-prevention procedures to avoid damage to equipment. Damage from static discharge can
cause immediate or intermittent equipment failure.
Locating for Proper Airflow
Ensure that the location of the Cisco Remote-PHY Compact Device Shelf has enough airflow to keep the
system operating within the environmental characteristics, and the air temperature is sufficient to compensate
for the heat dissipated by the system.
Avoid locating the Cisco Remote-PHY Compact Device Shelf in a location in which the chassis air intake
vents could draw in the exhaust air from adjacent equipment. Consider how the air flows through the device.
The airflow direction is front to back with ambient air drawn in from the venting located on the chassis’ front
sides.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage occurs when electronic cards or components are improperly handled
resulting in complete or intermittent failures. Static electricity can harm delicate components inside your
system. To prevent static damage, discharge static electricity from your body before you touch any of your
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Electrical Safety
system components, such as a microprocessor. As you continue to work on your system, periodically touch
an unpainted metal surface on the computer chassis.
The following are guidelines for preventing ESD damage:
• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Before
removing a card from the chassis, connect the equipment end of the strap to the ESD plug at the bottom
of the chassis below the power entry modules.
• Handle line cards by faceplates and carrier edges only; avoid touching the card components or connector
pins.
• When removing a module, place the removed module component-side-up on an antistatic surface or in
a static-shielding bag. If the module is to be returned to the factory, immediately place it in a
static-shielding bag.
• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD voltages
only on the body; ESD voltages on clothing can still cause damage.
• When transporting a sensitive component, place it in an antistatic container or packaging.
• Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench
pads.
Caution
For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 ohms.
Caution
Always tighten the captive installation screws on all the system components when you are installing them.
These screws prevent accidental removal of the module, provide proper grounding for the system, and
help ensure that the bus connectors are properly seated in the backplane.
Electrical Safety
All the system components are hot-swappable. They are designed to be removed and replaced while the system
is operating, without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when you are 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.
• Disconnect all power and external cables before installing or removing a chassis.
• Do not work alone when potentially hazardous conditions exist.
• 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.
Never install equipment that appears damaged.
• Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension
cables, and missing safety grounds.
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Chassis-Lifting Guidelines
In addition, use the following guidelines when working with any equipment that is disconnected from a power
source, but is still connected to telephone wiring or other network cabling:
• 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.
Warning
Statement 1001—Work During Lightning Activity
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Chassis-Lifting Guidelines
The chassis is not intended to be moved frequently. Before you install the system, ensure that your site is
properly prepared so that you can avoid having to move the chassis later to accommodate power sources and
network connections.
Each time you lift the chassis or any heavy object, follow these guidelines:
• Ensure that your footing is solid, and balance the weight of the chassis between your feet.
• 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 back muscles.
• Do not remove installed components from the chassis.
• Always disconnect all external cables before lifting or moving the chassis.
Tools and Equipment
The following tools and equipment are recommended as the minimum necessary equipment to install the
Cisco Remote-PHY Compact Device Shelf. You may need additional tools and equipment to install associated
equipment and cables. You may also require test equipment to check electronic and optical signal levels,
power levels, and communications links.
• Phillips hand screwdriver
• 3.5-mm flat-blade screwdriver
• Tape measure (optional)
• Level (optional)
• Power drill
• 8-gauge wire
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Unpacking and Verifying Shipping Contents
• Rack-mount brackets
You need the following tools to install and cable the Cisco CCAP RF line card:
• T-10 Torx driver tool
• 1/4-inch flathead screwdriver
• Blank Cisco cBR-8 slot cover (if required)
• ESD-preventive wrist strap
• Antistatic surface, such as a mat or antistatic bag
Unpacking and Verifying Shipping Contents
When you receive your chassis, perform the following steps and use the shipping contents checklist in the
following section.
Procedure
Step 1
Step 2
Step 3
Step 4
Inspect the box for any shipping damage. (If there is damage, contact your Cisco service representative).
Unpack the Cisco Remote-PHY Compact Device Shelf.
Perform a visual inspection of the chassis.
After you have unpacked the system, verify that you have received all of the required components, including
all the accessory items. Using the packing list as a guide, verify that you have received all the equipment listed
in your order, and ensure that the configuration matches the packing list.
Checking the Shipping Container Contents
Use the components list shown in the following table to check the contents of the Cisco Remote-PHY Compact
Device Shelf shipping container. Do not discard the shipping container. You need the container if you move
or have to ship the Cisco Remote-PHY Compact Device Shelf in the future.
Table 12: Cisco Remote-PHY Compact Device Shelf Shipping Container Contents
Component
Description
Chassis
Cisco Remote-PHY Compact Device Shelf are configured with dual
AC or dual DC power supplies.
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Installation Checklist
Component
Description
Accessories Kit
2 Rack-mount brackets and 1 grounding lug.
Note
You must order the
Accessories Kit separately Two sets of screws, one each for:
if you order the Cisco
• Rack-mount brackets (12 flat head screws (silver))
Remote-PHY Compact
• Grounding lug (2 screws (silver) with star washers)
Device Shelf chassis as a
spare.
Optional Equipment
Power cord if an AC power supply was shipped. There are none for the
DC power supply units.
Installation Checklist
To assist you with your installation and to provide a historical record of what was done by whom, print or
photocopy the Installation Checklist below. Use this to record when each procedure or verification is completed.
When the checklist is completed, place it in your site log along with the other records for your new device.
Table 13: Installation Checklist
Task
Verified By
Date
Date chassis received
Chassis and all accessories unpacked
Types and numbers of interfaces verified
Safety recommendations and guidelines
reviewed
Installation Checklist copied
Site log established and background
information entered
Site power voltages verified
Site environmental specifications verified
Required passwords, IP addresses, device
names, and so on, available
Required tools available
Network connection equipment available
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Installation Checklist
Task
AC power cable(s) connected to AC
source(s) and device
DC power cable(s) connected to DC
source(s) and device
Network interface cables and devices
connected
System power turned on
System boot complete (STATUS LED is on)
Ethernet port adapters and NIMs (where
applicable) are operational
Correct hardware configuration displayed
after system banner appears
Correct licenses installed on the device
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Verified By
Date
CHAPTER
4
Installing the Cisco Remote PHY Solution
• Installation Methods, page 37
• Guidelines for Rack Installation, page 37
• Attaching the Front Rack-Mount Brackets, page 39
• Attaching the Rear Rack-Mount Brackets, page 40
• Mounting the Cisco Remote-PHY Compact Shelf in the Rack, page 42
• Chassis Ground Connection, page 43
• Connecting Cables, page 45
Installation Methods
The Cisco Remote-PHY Compact Device Shelf are designed for standalone, 2-rail 19-inch rack-mount
installations.
Note
Proceed with the installation if you have already unpacked your chassis and read all the site requirements
for your new equipment.
Guidelines for Rack Installation
The Cisco Remote-PHY Compact Device Shelf can be installed in two-post rack. Inner clearance (the width
between the inner sides of the two posts or rails) must be at least 19 inches (48.26 cm). Airflow through the
chassis is from front to back.
The Cisco Remote-PHY Compact Device Shelf can be installed with both front or rear rack-mount brackets.
When planning your rack installation, consider the following guidelines:
• The Cisco Remote-PHY Compact Device Shelf requires a minimum of 1.75 inches or 4.45 cm rack
units of vertical rack space. Measure the proposed rack location before mounting the chassis in the rack.
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Installing the Cisco Remote PHY Solution
Verifying Rack Dimensions
• 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 rack-mount installation, remove the power strip before installing
the chassis, and then replace it after the chassis is installed.
• 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 cards,
connecting cables, or replacing or upgrading components). Otherwise, allow 19 inches (48.3 cm) of
clearance to remove field-replaceable units.
• Maintain a minimum clearance of 3 inches on the front and back sides of the chassis for the cooling air
inlet and exhaust ports, respectively. Avoid placing the chassis in an overly congested rack or directly
next to another equipment rack; the heated exhaust air from other equipment can enter the inlet air vents
and cause an overtemperature condition inside the device.
Caution
To prevent chassis overheating, never install a Cisco Remote-PHY Compact Device
Shelf in an enclosed space that is not properly ventilated or air conditioned.
• Always install heavier equipment in the lower half of a rack to maintain a low center of gravity to prevent
the rack from falling over.
• Ensure that cables from other equipment already installed in the rack do not impair access to the cards
or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.
• Provide an adequate chassis ground (earth) connection for your chassis.
In addition to the preceding guidelines, review the precautions for avoiding excessive temperature conditions
in the “Physical Characteristics” section and the “Site Environmental Requirements” section.
Verifying Rack Dimensions
Before you install the chassis, measure the space between the vertical mounting flanges (rails) on your
equipment rack to verify that the rack conforms to the measurements shown in the following figure.
Figure 10: Verifying Equipment Rack Dimensions
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Installing the Cisco Remote PHY Solution
Attaching the Front Rack-Mount Brackets
Procedure
Step 1
Mark and measure the distance between two holes on the left and right mounting rails.
The distance should measure 18.31 inches ± 0.06 inches (46.5 cm ± 0.15 cm).
Measure for pairs of holes near the bottom, middle, and top of the equipment rack to ensure that the
rack posts are parallel.
Measure the space between the inner edges of the left front and right front mounting flanges on the equipment
rack.
The space must be at least 17.7 inches (45 cm) to accommodate the chassis that is 17.25 inches (43.8 cm)
wide and fits between the mounting posts on the rack.
Note
Step 2
Attaching the Front Rack-Mount Brackets
Before You Begin
Before installing the chassis in the rack, you must install the rack-mount brackets on each side of the chassis.
Determine where in the rack you want the chassis to be mounted. If you are mounting more than one chassis
in the rack, then start from the bottom up or the center of the rack. The following figure shows the brackets
attached to the chassis. Depending on the bracket holes you use, the chassis may protrude in the rack.
Procedure
Step 1
Locate the threaded holes on the side of the chassis. Ensure that you hold the front rack-mount bracket with
the ear and holes facing outward and towards the front of the chassis.
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Installing the Cisco Remote PHY Solution
Attaching the Rear Rack-Mount Brackets
The following figures show where to attach the front rack-mount brackets to the Cisco Remote-PHY Compact
Device Shelf.
Figure 11: Attaching the Front Rack-Mount Brackets to the Cisco Remote-PHY Compact Device Shelf
Step 2
Step 3
Step 4
1
Front rack-mount bracket ear and holes
2
Front rack-mount bracket
3
Front rack-mount bracket screws
Position the front rack-mount bracket top hole with the chassis, first top hole behind the side vent holes.
Insert and tighten the black screws on one side.
Repeat Step 1 through Step 3 on the other side of the chassis. Use black screws to secure the rack-mount
brackets to the chassis.
Attaching the Rear Rack-Mount Brackets
Before You Begin
Determine where in the rack you want the chassis to be mounted. If you are mounting more than one chassis
in the rack, then start from the bottom up or the center of the rack. The following figure shows the brackets
attached to the chassis.
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Installing the Cisco Remote PHY Solution
Attaching the Rear Rack-Mount Brackets
Procedure
Step 1
Locate the threaded holes on the side of the chassis. Ensure that you hold the rear rack-mount bracket with
the ear and holes facing outward and towards the rear of the chassis.
The following figures show where to attach the rear rack-mount brackets to the Cisco Remote-PHY Compact
Device Shelf.
Figure 12: Attaching the Rear Rack-Mount Brackets to the Cisco Remote-PHY Compact Shelf
Step 2
Step 3
Step 4
1
Rear rack-mount bracket ear and holes
2
Rear rack-mount bracket
3
Rear rack-mount bracket screws
Position the rear rack-mount bracket with the chassis.
Insert and tighten the black screws on one side.
Repeat Step 1 through Step 3 on the other side of the chassis. Use black screws to secure the rack-mount
brackets to the chassis.
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Installing the Cisco Remote PHY Solution
Mounting the Cisco Remote-PHY Compact Shelf in the Rack
Mounting the Cisco Remote-PHY Compact Shelf in the Rack
After installing the rack-mount brackets on the chassis, mount the chassis by securing the rack-mount brackets
to two posts or mounting strips in the rack using the screws provided. Because the rack-mount brackets support
the weight of the entire chassis, ensure that you use all the screws to fasten the two rack-mount brackets to
the rack posts.
The Cisco Remote-PHY Compact Device Shelf can be installed on a 19 inch two-post rack. We recommend
that you allow at least 1 or 2 inches (2.54 or 5.08 cm) of vertical clearance between the Cisco Remote-PHY
Compact Shelf and any equipment directly above and below it.
Procedure
Step 1
On the chassis, ensure that all the screw fasteners on the installed components are securely tightened.
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.
With two people, lift the chassis into position between the rack posts.
Align the mounting bracket holes with the rack post holes and attach the chassis to the rack.
Position the chassis until the rack-mounting flanges are flush against the mounting rails on the rack.
Hold the chassis in position against the mounting rails in the equipment rack and follow these steps:
a) Insert the bottom screw into the second hole up from the bottom of the rack-mount ear and use a hand-held
screwdriver to tighten the screw to the rack rail.
Tip
To make installation easier, insert one screw at the bottom of the chassis and the next screw at the
top of the chassis diagonally from the first screw.
b) Insert the top screw into the second hole from the top of the rack-mount ear diagonally from the bottom
screw and tighten the screw to the rack rail.
c) Insert the rest of the screws to secure the chassis to the rack equipment.
Step 3
Step 4
Step 5
Step 6
Step 7
Tighten all the screws on each side to secure the chassis to the equipment rack.
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Installing the Cisco Remote PHY Solution
Chassis Ground Connection
The following figures show the Cisco Remote-PHY Compact Device Shelf on a two-post equipment rack.
Figure 13: Cisco Remote-PHY Compact Shelf Installed on a Two-Post Equipment Rack
1
Rack equipment rail
2
Rack mount bracket ear and screws
Chassis Ground Connection
Double hole Ground Lug connection is mandatory for both AC and DC chassis.
Before you connect power or turn on power to your chassis, you must provide an adequate chassis ground
(earth) connection for the chassis. A chassis ground connector is provided on each Cisco Remote-PHY Compact
Device Shelf. There is a stud on the rear left side of the chassis.
Caution
The grounding wire should always be the first to be installed or connected and the last to be removed or
disconnected. Use copper wire only.
Have the recommended tools and supplies available before you begin this procedure.
Recommended Tools and Supplies
The following tools, equipment, and supplies are necessary to connect the system ground to the chassis:
• Phillips screwdriver
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Installing the Cisco Remote PHY Solution
Attaching a Chassis Ground Connection
• 3.5-mm flat blade screwdriver (Phoenix # 1205053 or equivalent 3.5-mm flat blade)
• Dual-lug chassis ground component
• Grounding wire
Attaching a Chassis Ground Connection
Procedure
Step 1
Step 2
Use the wire stripper to strip one end of the AWG #6 wire approximately 0.75 inches (19.05 mm).
Insert the AWG #6 wire into the open end of the grounding lug.
Figure 14: Attaching a Grounding Lug to the Chassis Ground Connector
Step 3
Step 4
Step 5
1
Chassis ground lead wire
3
Ground screws
2
Grounding lug
4
Chassis ground connector holes
Use the crimping tool to carefully crimp the wire receptacle around the wire. This step is required to ensure
a proper mechanical connection.
Locate the chassis ground connector on the side of your chassis.
Insert the two screws through the holes in the grounding lug.
The following figures show how to attach a grounding lug to the chassis ground connector.
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Installing the Cisco Remote PHY Solution
Connecting Cables
Figure 15: Attaching the Grounding Lug to the Ground Connector of the Cisco Remote-PHY Compact Shelf
Step 6
Step 7
1
Chassis ground lug
3
Ground symbol
2
Grounding screws
4
Ground connector on the chassis
Use the Number 2 Phillips screwdriver to carefully tighten the screws until the grounding lug is held firmly
to the chassis. Do not over tighten the screws.
Connect the opposite end of the grounding wire to the appropriate grounding point at your site to ensure an
adequate chassis ground.
Connecting Cables
Keep the following guidelines in mind when connecting any external cable to the Cisco Remote-PHY Compact
Device Shelf:
• To reduce the chance of interference, avoid crossing high-power lines with any interface cables.
• Verify all the cabling limitations (particularly distance) before powering on the system.
Connecting the Console Port Cable
Cisco Remote-PHY Compact Device Shelf uses RJ-45 ports for console ports to attach a console terminal. It
has an asynchronous serial (EIA/TIA-232) RJ-45 console port labeled CON on its front panel. You can connect
this port to most types of video terminals with a console cable kit which contains:
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45
Installing the Cisco Remote PHY Solution
Connecting the Console Port Cable
• One RJ-45-to-RJ-45 crossover cable
• One RJ-45-to-DB-9 (female) adapter
A crossover cable reverses pin connections from one end to the other. In other words, it connects pin 1 (at
one end) to pin 8 (at the other end), pin 2 to pin 7, pin 3 to pin 6, and so on. You can identify a crossover cable
by comparing the two modular ends of the cable. Hold the cable ends in your hand, side-by-side, with the
tabs at the back. Ensure that the wire connected to the outside (left) pin of the left plug (pin 1) is the same
color as the wire connected to the outside (right) pin of the right plug (pin 8).
Both the console and auxiliary ports are asynchronous serial ports; devices connected to these ports must be
capable of asynchronous transmission.
Before connecting to the console interface on the Cisco Remote-PHY Compact Device Shelf using a terminal
or PC, perform the following steps:
Procedure
Step 1
Connect one end of the RJ-45 cable to the console port on the Cisco Remote-PHY Compact Device Shelf.
Figure 16: Connecting Console Port
Step 2
Connect the other end of the RJ-45 cable to the RJ-45-to-DB-9 adapter.
Figure 17: Connecting an RJ-45-to-DB-9 Adapter
Step 3
Step 4
Step 5
Connect the RJ-45-to-DB-9 adapter to the appropriate serial port on the PC or terminal.
Power up the PC or terminal.
Configure the PC terminal emulation software or the terminal with the following settings:
• 9600 baud
• 8 data bits
• No parity generation or checking
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Installing the Cisco Remote PHY Solution
Connecting Management Ethernet Port Cable
• 1 stop bit
• No flow control
Connecting Management Ethernet Port Cable
Caution
To comply with Class A emission requirements, a shielded Ethernet cable must be used for the connection.
Procedure
Step 1
Step 2
Insert an Ethernet RJ-45 cable into the MGMT port.
Insert the other end of the RJ-45 cable to your management device or network.
Installing the SFP+ Modules
Before You Begin
Caution
Do not install or remove the SFP+ module with fiber-optic cables still attached to it. Doing so may damage
cables, cable connectors, or the optical interfaces and may interfere with the SFP+ module latching properly
into its socket connector. Disconnect all cables before removing or installing an SFP transceiver module.
• Attach an ESD-preventive wrist strap to your wrist and connect the other end to the grounding lug
connected to the chassis.
• You must use the supported SFP+ modules. The following SFP+ modules are supported on the Cisco
Remote-PHY Compact Device Shelf:
◦SFP-10G-SR
◦SFP-10G-LR
◦SFP-10G-ER
◦SFP-10G-ZR
◦SFP-10G-LRM
Required Tools and Equipment
• ESD-preventive wrist strap
• SFP+ module
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Installing the Cisco Remote PHY Solution
Installing the SFP+ Modules
Procedure
Step 1
Remove the SFP+ module from its protective packaging.
Note
Do not remove the optical bore dust
plugs.
Figure 18: SFP+ Module with Dust Plugs
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
1
Dust plug
3
Transmit bore
2
Bail clasp with clasp tab
4
Receive bore
Check the label on the SFP+ module to verify that you have the correct model for your network.
Find the send (TX) and receive (RX) markings that identify the top side of the SFP+ module.
Note
On some SFP modules, the TX and RX marking might be replaced by arrowheads pointing from the
SFP+ module connector (transmit direction or TX) and towards the connector (receive direction or
RX).
Align the SFP+ module in front of the socket opening.
Carefully insert the SFP+ module into the socket until you feel the connector latch into place.
Press the SFP+ module into the slot firmly with your thumb until it is latched securely into the socket.
Repeat step 1 to 6 for each SFP+ module.
What to Do Next
• Verify if the SFP+ module is seated and latched properly. Grasp the SFP+ module and try to remove it
without releasing the latch. If the SFP+ module cannot be removed, it is installed and seated properly.
If the SFP+ module can be removed, reinstall it.
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Installing the Cisco Remote PHY Solution
Using the SFP+ Ports
Using the SFP+ Ports
Before You Begin
• Do not remove the protective dust plugs on the unplugged fiber-optic cable connectors and the SFP+
optical bores until you are ready to make a connection.
Required Tools and Equipment
• Fiber-optic cable with the LC connector
Procedure
Step 1
Step 2
Step 3
Step 4
Remove the dust plugs from the network interface cable LC connectors. Save the dust plugs for future use.
Inspect and clean the LC connector end-faces.
Remove the dust plug from the SFP+ module optical.
Immediately connect the fiber-optic cable with cable LC connector to the SFP+ port.
Important
Grasp the LC connector housing to connect the fiber-optic cable to the SFP+
ports.
Figure 19: LC fiber-optic connector
Using UCH.8 Connectors
The back faceplate of the Cisco Remote-PHY Compact Device Shelf has one downstream port cluster and
two upstream port clusters. Three cable assemblies with UCH.8 connectors are used, one for each cluster, to
connect the Cisco Remote-PHY Compact Device Shelf.
Connect the cable assemblies in the following order:
1 Red cable assembly to the downstream port cluster.
2 One blue cable assembly to upstream port cluster with the ports US0 to US7.
3 Other blue cable assembly to upstream port cluster with the ports US8 to US15.
The following steps describe how to connect one UCH.8 connector. Repeat the procedure to connect all the
three UCH.8 connectors.
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Installing the Cisco Remote PHY Solution
Using UCH.8 Connectors
Before You Begin
• Attach an ESD-preventive wrist strap to your wrist and connect the other end to the grounding lug
connected to the chassis.
Required Tools and Equipment
• ESD-preventive wrist strap.
• 3/16" flat-blade torque screwdriver.
• Cable Bundle containing the following cable assemblies:
◦One cable assembly with red colored cables connected to one UCH.8 connector.
◦Two cable assemblies with blue colored cables connected to one UCH.8 connector each.
Procedure
Step 1
Step 2
Step 3
Align the small and large guide pins in the UCH.8 connector with the small and large guide pin holes on the
Cisco Remote-PHY Compact Device Shelf.
Insert the guide pins of the UCH.8 connector into the guide pin holes in the Cisco Remote-PHY Compact
Device Shelf.
Hold the UCH.8 connector in place and tighten the lead screw using the 3/16" flat-head torque screwdriver,
with a torque of 10-12 in-lbs.
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CHAPTER
5
Configuring the Cisco Remote-PHY Solution
• Prerequisites for Configuring the Cisco Remote-PHY Solution, page 51
• Restrictions for Configuring the Cisco Remote-PHY Solution, page 51
• How to Configure the Cisco Remote-PHY Solution, page 51
• Configuration Example for the Cisco Remote-PHY Solution, page 52
Prerequisites for Configuring the Cisco Remote-PHY Solution
• The Cisco CMTS must have at least one DOCSIS Timing, Communication, and Control (DTCC) card
configured in the DOCSIS Timing Interface (DTI) mode for the Cisco cBR RF line card to work with
the Cisco Remote-PHY Compact Shelf.
Restrictions for Configuring the Cisco Remote-PHY Solution
• Adding or removing the upstream or downstream channels in the channel group may trigger the Cisco
Remote-PHY Compact Shelf to reset.
• The Cisco cBR RF line card supports only static DEPI configuration.
• The Cisco cBR RF line card does not support Spectrum Management, Inter Line Card RF Spanning,
and High Availability.
How to Configure the Cisco Remote-PHY Solution
For detailed instructions, see the Cisco Remote-PHY Configuration Guide.
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51
Configuring the Cisco Remote-PHY Solution
Configuration Example for the Cisco Remote-PHY Solution
Configuration Example for the Cisco Remote-PHY Solution
Cisco Remote-PHY RPD CM Online Basic Configuration Example
interface TenGigabitEthernet0/1/0
ip address 209.165.200.225 255.255.255.224
ip helper-address 209.165.200.226
cable downstream controller-profile 3
rf-chan 0 31
rf-output NORMAL
type DOCSIS
frequency 111000000
qam-profile 1
docsis-channel-id 1
cable upstream controller-profile 3
us-channel 0 channel-width 3200000 3200000
us-channel 0 docsis-mode atdma
us-channel 0 frequency 11400000
us-channel 0 minislot-size 2
us-channel 0 modulation-profile 221
no us-channel 0 shutdown
us-channel 1 channel-width 3200000 3200000
us-channel 1 docsis-mode atdma
us-channel 1 frequency 14600000
us-channel 1 minislot-size 2
us-channel 1 modulation-profile 221
no us-channel 1 shutdown
us-channel 2 channel-width 3200000 3200000
us-channel 2 docsis-mode atdma
us-channel 2 frequency 17800000
us-channel 2 minislot-size 2
us-channel 2 modulation-profile 221
no us-channel 2 shutdown
us-channel 3 channel-width 3200000 3200000
us-channel 3 docsis-mode atdma
us-channel 3 frequency 21000000
us-channel 3 minislot-size 2
us-channel 3 modulation-profile 221
no us-channel 3 shutdown
us-channel 4 channel-width 3200000 3200000
us-channel 4 docsis-mode atdma
us-channel 4 frequency 24200000
us-channel 4 minislot-size 2
us-channel 4 modulation-profile 221
no us-channel 4 shutdown
us-channel 5 channel-width 3200000 3200000
us-channel 5 docsis-mode atdma
us-channel 5 frequency 27400000
us-channel 5 minislot-size 2
us-channel 5 modulation-profile 221
no us-channel 5 shutdown
interface Cable0/0/0
load-interval 30
downstream Downstream-Cable 0/0/0 rf-channel 0-23
upstream 0 Upstream-Cable 0/0/0 us-channel 0
upstream 1 Upstream-Cable 0/0/0 us-channel 1
upstream 2 Upstream-Cable 0/0/0 us-channel 2
upstream 3 Upstream-Cable 0/0/0 us-channel 3
upstream 4 Upstream-Cable 0/0/0 us-channel 4
upstream 5 Upstream-Cable 0/0/0 us-channel 5
cable upstream bonding-group 1
upstream 0
upstream 1
upstream 2
upstream 3
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Configuring the Cisco Remote-PHY Solution
Configuration Example for the Cisco Remote-PHY Solution
attributes 80000001
cable upstream bonding-group 2
upstream 2
upstream 3
upstream 4
upstream 5
attributes 80000001
cable upstream bonding-group 3
upstream 0
upstream 1
upstream 4
upstream 5
attributes 80000001
cable bundle 1
cable ip-init dual-stack
interface Wideband-Cable0/0/0:0
cable bundle 1
cable rf-channels channel-list 0-7 bandwidth-percent 10
interface Wideband-Cable0/0/0:1
cable bundle 1
cable rf-channels channel-list 8-15 bandwidth-percent 10
cable fiber-node 200
downstream Downstream-Cable 0/0/0
upstream Upstream-Cable 0/0/0
cable rpd node1
identifier 0004.9f03.0061
rpd-ds 0 base-power 42
core-interface Te0/1/0
rpd-ds 0 downstream-cable 0/0/0 profile 3
rpd-us 0 upstream-cable 0/0/0 profile 3
r-dti 1
rpd-event profile 0
interface Loopback1588
ip address 209.165.200.228 255.255.255.224
interface TenGigabitEthernet5/1/3 (connect to ASR903)
ip address 209.165.200.229 255.255.255.224
ip route 209.165.200.250 255.255.255.254 209.165.200.251
(route to ASR903 loopback ip)
ptp clock ordinary domain 0
servo tracking-type R-DTI
clock-port slave-from-903 slave
delay-req interval -4
sync interval -5
sync one-step
transport ipv4 unicast interface Lo1588 negotiation
clock source 209.165.200.250 (ASR903 loopback ip)
ptp r-dti 1
ptp-domain 0 (same domain number with ptp server)
clock-port 1
ethernet 1 (default value is same index with clock-port index, for RPD, ethernet 1=vbh0,
ethernet 2=vbh1)
clock-source 209.165.200.250 gateway 209.165.200.253 (clock-source is ASR903 loopback
ip, gateway is the RPD's next hop to access ASR903.)
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Configuring the Cisco Remote-PHY Solution
Configuration Example for the Cisco Remote-PHY Solution
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54
CHAPTER
6
Monitoring the Cisco Remote-PHY Solution
• Verifying the Cisco Remote-PHY Compact Shelf Using the CLI, page 55
Verifying the Cisco Remote-PHY Compact Shelf Using the CLI
To verify the Cisco RPD status and configuration, use the show cable rpd group command. For more
information, see the Cisco CMTS Cable Command Reference guide.
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55
Monitoring the Cisco Remote-PHY Solution
Verifying the Cisco Remote-PHY Compact Shelf Using the CLI
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56
CHAPTER
7
Monitoring the Interface Card in the Cisco cBR
Chassis
• Monitoring the Interface Line Cards in the Cisco cBR Chassis using LEDs, page 57
• Monitoring the Digital Physical Interface Cards in the Cisco cBR Chassis using LEDs, page 58
Monitoring the Interface Line Cards in the Cisco cBR Chassis
using LEDs
Table 14: Verifying the LEDs on the Interface Line Cards
LED
Status
Description
STATUS
Off
The line card has not initialized correctly.
Yellow
The line card has initialized, but HA fault is
detected.
Possible hardware fault.
PROTECT
Green
The line card is operational.
Off
The Interface line card is not a Protect card.
Blue
The Interface line card is configured as a Protect
card.
Green
The Protect card is operational and traffic is
flowing.
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Monitoring the Interface Card in the Cisco cBR Chassis
Monitoring the Digital Physical Interface Cards in the Cisco cBR Chassis using LEDs
LED
Status
Description
REPLACE
Off
The Interface line card is operational and does
not require replacement.
White
The Interface line card requires replacement.
Monitoring the Digital Physical Interface Cards in the Cisco
cBR Chassis using LEDs
Table 15: Verifying the LEDs on the Cisco DPIC
LED
Status
Description
STATUS
Off
The card is not powered up.
On
The card is operational.
Off
The specific link is down or the optical module
is absent.
On
The specific link is up.
Off
The card is operational and does not require
replacement.
On
The card requires replacement.
10GE Link Status
REPLACE
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CHAPTER
8
Troubleshooting the Cisco Remote-PHY Solution
• Troubleshooting: Cisco cBR-CCAP-LC-40G Line Card Link LED Does Not Illuminate, page 59
• Troubleshooting: The Cisco cBR-CCAP-LC-40G Line Card is Not Working, page 59
• Troubleshooting: The cable modems are not in init() state, page 60
Troubleshooting: Cisco cBR-CCAP-LC-40G Line Card Link LED
Does Not Illuminate
Problem After inserting the network cable into the SFP module of the Cisco cBR-CCAP-LC-40G line card,
the LINK LED of the line card does not illuminate.
Possible Cause Dirt or skin oil is accumulated on the network cable plug faceplate generating significant
attenuation and reducing the optical power levels below threshold levels. This could result in link failure.
Solution Clean the plug faceplate with a lint-free tissue soaked in 99 percent pure isopropyl alcohol and then
with a dry lint-free tissue. Remove any residual dust from the faceplate with compressed air before installing
the network cable.
Troubleshooting: The Cisco cBR-CCAP-LC-40G Line Card is Not
Working
Problem The Cisco cBR-CCAP-LC-40G line card is not working.
Possible Cause The Cisco cBR-CCAP-LC-40G line card is not connected to the power supply.
Solution Verify if the power LED is illuminated and the power supply is connected to the Cisco
cBR-CCAP-LC-40G line card. Connect to the power supply, if not connected.
Possible Cause The Cisco cBR-CCAP-LC-40G line card is not configured on the Cisco CMTS.
Solution Configure the Cisco cBR-CCAP-LC-40G line card.
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59
Troubleshooting the Cisco Remote-PHY Solution
Troubleshooting: The cable modems are not in init() state
Possible Cause The captive screws are not secured on the faceplate and the ejector levers are not properly
closed.
Solution Close the ejector levers and tighten the captive screws with your fingers. Then, use either a T-10
Torx or a common flathead screwdriver to tighten the captive screws from 5 to 7 in-lbs.
Possible Cause The Cisco cBR-CCAP-LC-40G line card is not firmly seated in the chassis.
Solution Unscrew the top and bottom captive screws on the line card using a T-10 Torx driver tool or flathead
screwdriver. Simultaneously pivot both ejector levers away from the line card to disengage the line card. Slide
the line card partially out of the slot in the chassis and slide it back in until it is firmly seated in the chassis.
Close the ejector levers and tighten the captive screws with your fingers. Then, use either a T-10 Torx or a
common flathead screwdriver to tighten the captive screws from 5 to 7 in-lbs.
Possible Cause The network cable connectors are not properly seated in the ports on the Cisco
cBR-CCAP-LC-40G line card and cables are broken.
Solution Verify if the cables are broken. Replace the cables, if broken and insert the network cable connector
into the SFP module port until it clicks and locks into place to ensure proper seating..
Possible Cause Incorrect or inappropriate software license is configured on the Cisco cBR-CCAP-LC-40G
line card.
Solution Reinstall or rehost the appropriate license on the Cisco cBR-CCAP-LC-40G line card.
Possible Cause Power on Self Test (POST) fails when the line card is installed in the chassis.
Solution Verify the power supply connection and if the problem persists, contact the Technical Assistance
Center (TAC) for further assistance.
Troubleshooting: The cable modems are not in init() state
Problem The cable modems are not in init() state.
Possible Cause PTP is not aligned.
Solution Use the show ptp clock running command to check ptp clock state.
NG13#show ptp clock running
PTP Ordinary Clock [Domain 0]
State
Ports
Pkts sent
PHASE_ALIGNED 1
1666420
PORT SUMMARY
PTP Master
Name
Tx Mode
Role
slave-from-903 unicast
slave
Cisco Remote-PHY Compact Shelf Hardware Installation Guide
60
Transport
Lo1588
Pkts rcvd
5051243
State
Slave
Redundancy Mode
Hot standby
Sessions
1
Port Addr
10.90.3.93
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