Cisco Systems 4000 Router User Manual

2
CHAPT E R
Preparing to Install
Cisco 4000 Series Routers
This chapter includes information you need before you install your Cisco 4000 series
router. It includes the following sections:
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Safety Recommendations
General Site Requirements
Installation Checklist
Site Log
Required Tools and Equipment
Inspecting the System
Safety Recommendations
The following guidelines will help to ensure your safety and protect the equipment.
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Keep the chassis area clear and dust-free during and after installation.
Turn the power supply off and unplug the power cord before opening the chassis.
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. (To see translated
versions of this warning, refer to the appendix “Translated Safety Warnings.”)
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Keep tools and chassis components away from walk areas.
Preparing to Install Cisco 4000 Series Routers 2-1
Safety Recommendations
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Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf
and roll up your sleeves.
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.
(To see translated versions of this warning, refer to the appendix “Translated Safety
Warnings.”)
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Wear safety glasses when working under any conditions that might be hazardous to your
eyes.
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Do not perform any action that creates a potential hazard to people or makes the
equipment unsafe.
Warning This equipment is intended to be grounded. Ensure that the host is connected to
earth ground during normal use. (To see translated versions of this warning, refer to the
appendix “Translated Safety Warnings.”)
Safety with Electricity
Follow these guidelines when working on equipment powered by electricity:
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Locate the emergency power-off switch in the room in which you are working. Then, if
an electrical accident occurs, you can act quickly to shut the power off.
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Before working on the system, turn off the power and unplug the power cord.
Disconnect all power before doing the following:
— Installing or removing a chassis
— Working near power supplies
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Do not work alone if potentially hazardous conditions exist.
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Safety Recommendations
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Never assume that power is disconnected from a circuit. Always check.
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If an electrical accident occurs, proceed as follows:
Look carefully for possible hazards in your work area, such as moist floors, ungrounded
power extension cables, and missing safety grounds.
— Use caution; do not become a victim yourself.
— Turn off power to the system.
— If possible, send another person to get medical aid. Otherwise, assess the victim’s
condition and then call for help.
— Determine if the person needs rescue breathing or external cardiac compressions;
then take appropriate action.
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.
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Never install telephone wiring during a lightning storm.
Warning Do not work on the system or connect or disconnect cables during periods of
lightning activity. (To see translated versions of this warning, refer to the appendix
“Translated Safety Warnings.”)
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Never install telephone jacks in wet locations unless the jack is specifically designed for
wet locations.
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Never touch uninsulated telephone wires or terminals unless the telephone line is
disconnected at the network interface.
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Use caution when installing or modifying telephone lines.
Preparing to Install Cisco 4000 Series Routers 2-3
General Site Requirements
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It
occurs when electronic printed circuit cards are improperly handled and can result in
complete or intermittent failures. Always follow ESD prevention procedures when
removing and replacing cards. Ensure that the router chassis is electrically connected to
earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact.
Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted
ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap
and cord must operate effectively. If no wrist strap is available, ground yourself by touching
the metal part of the chassis.
For the safety of your equipment, periodically check the resistance value of the
antistatic strap, which should be between 750 kilohm and 10 megohm.
Caution
General Site Requirements
This section describes the requirements your site must meet for safe installation and
operation of your system. Ensure that your site is properly prepared before beginning
installation.
The router can be placed on a desktop or rack-mounted in a data processing or lab
environment. The system can be mounted in either a standard or telco rack. Optional
rack-mount kits are available.
Site Environment
The location of individual chassis and the layout of your equipment rack or wiring room
are extremely important for proper system operation. Equipment placed too close together,
inadequate ventilation, and inaccessible panels can cause system malfunctions and
shutdowns, and can make system maintenance difficult.
When planning your site layout and equipment locations, use the precautions described in
the next section, “Site Configuration Precautions,” to help avoid equipment failures and
reduce the possibility of environmentally caused shutdowns. If you are currently
experiencing shutdowns or unusually high errors with your existing equipment, these
precautions will help you isolate the cause of failures and prevent future problems.
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General Site Requirements
Site Configuration Precautions
The following precautions will help you plan an acceptable operating environment for your
router and will help you avoid environmentally caused equipment failures:
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Remember that electrical equipment generates heat. Ambient air temperature might not
be adequate to cool equipment to acceptable operating temperatures without adequate
circulation. Ensure that the room in which your system operates has adequate
circulation.
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Never place chassis side by side because the heated exhaust air from one chassis can be
drawn into the intake port of the next.
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Always follow the ESD-prevention procedures in the section “Preventing Electrostatic
Discharge Damage” earlier in this chapter to avoid damage to equipment. Damage from
static discharge can cause immediate or intermittent equipment failure.
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Ensure that the chassis cover and network processor module rear panels are secure. The
chassis is designed to allow cooling air to flow within it. An open chassis allows air
leaks, which may in turn interrupt and redirect the flow of cooling air across internal
components.
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Check the power at your site to ensure that you are receiving “clean” power (free of
spikes and noise). Install a power conditioner if necessary.
Warning The device is designed to work with TN power systems. (To see translated
versions of this warning, refer to the appendix “Translated Safety Warnings.”)
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Install proper grounding to avoid damage from lightning and power surges.
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General Site Requirements
Equipment Racks
The following tips will help you plan an acceptable equipment rack configuration:
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Enclosed racks must have adequate ventilation. Ensure that the rack is not overly
congested because each unit generates heat. An enclosed rack should have louvered
sides and a fan to provide cooling air.
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When mounting a chassis in an open rack, ensure that the rack frame does not block the
intake or the exhaust ports. If the chassis is installed on slides, check the position of the
chassis when it is seated all the way into the rack.
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In an enclosed rack with a ventilation fan in the top, excessive heat generated by
equipment near the bottom of the rack can be drawn upward and into the intake ports of
the equipment above.
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Baffles can help to isolate exhaust air from intake air, which also helps to draw cooling
air through the chassis. The best placement of the baffles depends on the airflow patterns
in the rack, which can be found by experimenting with different configurations.
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When equipment installed in a rack, particularly in an enclosed rack, fails, try operating
the equipment by itself, if possible. Turn off other equipment in the rack (and in adjacent
racks) to allow the unit under test a maximum of cooling air and clean power.
Power Supply Features
Following are features of the router power supply:
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Autoranging power supply (200W, 100 to 240 VAC, 50 to 60 Hz, 40 to 72 VDC)
6-foot electrical power cord
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. (To see
translated versions of this warning, refer to the appendix “Translated Safety Warnings.”)
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Installation Checklist
Installation Checklist
The Installation Checklist lists the procedures for initial hardware installation of a new
router. Make a copy of this checklist and mark the entries as you complete each procedure.
Include a copy of the checklist for each system in your Site Log. (See the next section “Site
Log.”)
Installation checklist for site______________________________________________
Task
Verified by
Date
Installation checklist copied
Background information placed in Site Log
Site power voltages verified
Installation site prepower check completed
Required tools available
Additional equipment available
Cisco 4000 series router received
Cisco 4000 Series Installation Guide (this manual)
received
Cisco Information Packet received
Optional ordered CD or printed documentation
received
Chassis components verified
Initial electrical connections established
ASCII terminal attached to console port, or modem
attached to console port (for remote configuration)
Signal distance limits verified
Startup sequence steps completed
Initial system operation verified
Software image verified
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Site Log
Site Log
The Site Log provides a historical record of all actions relevant to the router. Keep it in an
accessible place near the chassis where anyone who performs tasks has access to it. Use the
Installation Checklist to verify steps in the installation and maintenance of your router. Site
Log entries might include the following:
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Installation progress—Make a copy of the Installation Checklist and insert it into the
Site Log. Make entries as each procedure is completed.
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Upgrades and removal or replacement procedures—Use the Site Log as a record of
ongoing router maintenance and expansion history. Each time a procedure is performed
on the router, update the Site Log to reflect the following:
— Additional network processor modules installed
— Removal or replacement of network processor modules
— Configuration changes
— Maintenance schedules and requirements
— Maintenance procedures performed
— Intermittent problems
— Related comments
Warning Ultimate disposal of this product should be handled according to all national
laws and regulations. (To see translated versions of this warning, refer to the appendix
“Translated Safety Warnings.”)
Required Tools and Equipment
You need the following tools and equipment to install the router:
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ESD cord and wrist strap
Screwdrivers, Number 1 and Number 2 Phillips
One serial port adapter cable for each serial port to connect the port with the remote
device or network
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Inspecting the System
In addition, you might need the following additional external equipment:
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Data service unit (DSU) to connect each serial port to an external network.
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Ethernet transceiver.
To connect a serial port to a T1 network, you need a T1 channel service unit/data service
unit (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 one 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.
Network Terminator 1 (NT1) for BRI connections in North America.
Before installing a G.703/G.704 network processor module, ensure that you have one
of the following adapter cables:
— 75-ohm, unbalanced adapter cable (CAB-E1-BNC-3M)
— 120-ohm, balanced adapter cable (CAB-E1-TWINAX-3M)
Inspecting the System
Before unpacking the system, make certain that you are ready to install it. If the final
installation site is not ready, keep the chassis in its shipping container to prevent accidental
damage. After determining where you want the system installed, proceed with the
unpacking.
The router, cables, publications, CD, and any optional equipment you ordered might be
shipped in more than one container. When you unpack each shipping container, check the
packing list to ensure that you received all of the following items:
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Router
6-foot (1.8-meter) power cord
Bag of rubber feet for desktop mounting
Optional equipment (which might include network connection cables)
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Inspecting the System
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This publication
Cisco Information Packet
Optional companion publications, or the Cisco Connection Documentation, Enterprise
Series CD, as specified on your order
Inspect all items for shipping damage. If anything appears damaged, or if you encounter
problems when installing or configuring your system, contact a customer service
representative. Also, please complete and mail your product registration (see the
publication Cisco Information Packet).
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