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Cisco 12008 Gigabit Switch Router Cable-Management System Repla

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Cisco 12008 Gigabit Switch Router Cable-Management System Replacement Instructions

Table Of Contents

Cisco 12008 Gigabit Switch Router
Cable-Management System
Replacement Instructions

Installation Safety, ESD Precautions, and Required Tools

Safety Guidelines

Safety with Electricity

Preventing Electrostatic Discharge Damage

Tools and Parts Required

Replacing the Cable-Management System

Removing a Cable-Management Tray

Installing a Cable-Management Tray

Removing a Cable-Management Bracket

Installing a Cable-Management Bracket

Cisco Connection Online


Cisco 12008 Gigabit Switch Router
Cable-Management System
Replacement Instructions


Product Numbers: ACS-GSR8-CCBLM= and ACS-GSR-LCCBLM=
Document Order Number: DOC-784958=

This document presents procedures for installing and replacing the cable-management system in the Cisco 12008 Gigabit Switch Router (GSR). It contains the following sections:

Installation Safety, ESD Precautions, and Required Tools

Safety Guidelines

Tools and Parts Required

Replacing the Cable-Management System

Removing a Cable-Management Tray

Installing a Cable-Management Tray

Removing a Cable-Management Bracket

Installing a Cable-Management Bracket

Cisco Connection Online

Use this document in conjunction with the Cisco 12008 Gigabit Switch Router Installation and Configuration Guide (document number 78-4953-xx), which shipped with your Cisco 12008 Gigabit switch router.

Installation Safety, ESD Precautions, and Required Tools

Before replacing the cable-management system in the Cisco 12008, review the following safety guidelines to prevent injury to yourself or damage to the equipment. This section also lists the tools that you will need to perform the cable-management system replacement procedures.

Safety Guidelines

Observe the following guidelines to ensure your safety and protect the equipment. This list does not identify all of the potentially hazardous situations that you may encounter in the workplace, so be alert and exercise care when working with any of the switch router's electrical or electronic components.

Always disconnect all power cords and line card interface cables before moving the Cisco 12008.

Keep tools and switch router components away from walkway areas.

Do not work alone if potentially hazardous conditions exist in the work area.

Do not take any action that poses a potential hazard to yourself, other personnel, or the equipment.

Carefully examine your work area for potential hazards, such as damp floors, ungrounded power extension cables, and missing safety grounds.

Safety with Electricity

Observe the following basic safety guidelines when working with the switch router's electrical and electronic equipment:

Before beginning any procedure requiring access to the card cages or other interior switch router components, locate the emergency power-off switch for the room in which you will be working.

Do not work alone if potentially hazardous conditions exist in your work area.

Never assume that power has been disconnected from a circuit; always verify that power has been removed before working on the switch router.

Do not perform any action that poses a potential hazard to yourself, other personnel, or the equipment.

Carefully examine your work area for possible hazards, such as damp floors, ungrounded power extension cables, and missing safety grounds.

In addition, observe the following guidelines when you are working with equipment connected to telephone wiring or other network cabling.


Warning   

Do not work on the system or connect or disconnect cables during lightning storms.


Never install telephone jacks in wet or damp locations unless the jack is specifically designed for use in such areas.

Never touch uninsulated telephone wires or terminals unless telephone lines are disconnected at the network interface.

Use caution when installing or modifying telephone lines.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage to circuit boards can occur if they are handled improperly. Such mishandling can result in intermittent or complete failures of the board.

When handling circuit boards, observe the following guidelines to prevent ESD damage:

Always use an ESD-preventive wrist strap and ensure that the strap makes adequate contact with your skin.

When removing or installing any switch router circuit board or assembly, insert the equipment end of the wrist strap (the banana jack) into the ESD socket on the lower left edge of the upper card cage.

If you intend to return a faulty circuit board to the factory for repair or replacement, immediately place the board in an antistatic bag to prevent ESD damage to the board.

The wrist strap protects equipment from ESD voltages on the body only; ESD voltages on clothing can still cause damage to electronic components.


Caution   
For safety, periodically check the resistance value of the antistatic wrist strap. The resistance measurement should be between 1 and 10 megohms.

Tools and Parts Required

You will need the following tools to install or replace a cable-management tray or a cable-management bracket:

1/4-inch flat-blade screwdriver

Number 1 Phillips screwdriver

ESD-preventive wrist strap

ACS-GSR8-CCBLM(=)—Cable-management tray

ACS-GSR-LCCBLM(=)—Cable-management bracket

Replacing the Cable-Management System

This section presents the procedures for removing and installing a cable-management tray or a cable-management bracket for the Cisco 12008.

Removing a Cable-Management Tray

The cable-management tray (ACS-GSR8-CCBLM) is actually three pieces: end cap, top trim, and tray (see ).

Figure 1 Cable--Management Tray on a Cisco 12008

To remove the cable-management tray while the system is operating, perform the following steps.


Note   Before accessing any of the router's internal components, put on an antistatic wrist strap and make sure that it makes adequate contact with your skin. Insert the equipment end of the wrist strap (the banana jack) into the ESD grounding socket on the lower left edge of the upper card cage (see ).


Step 1 Proceeding from left to right in the upper card cage, select the first line card. Starting with the interface cable for the bottom port on the line card (for cards with multiple ports), remove it from the associated finger on the cable-management tray (see ). Continue this for each interface cable.

Figure 2 Removing an Interface Cable from Cable-Management Tray

Step 2 Once the interface cables are removed from the cable-management tray, position the interface cables out of the way in preparation for removal of the cable-management tray.

Step 3 Remove the four installation screws securing the cable-management tray to the recessed router enclosure (see ). Save the screws for possible future use.

Step 4 Remove the top trim piece from the chassis by pulling away it from the chassis fasteners (see , part 1).

Step 5 Remove the end cap (left-most, large finger piece) from the chassis by pulling it away from the chassis fasteners (see , part 2).

Step 6 Pivot the bottom of the cable-management tray away from the recessed router enclosure (see , part 3).

Step 7 Remove the cable-management tray from the router and set it aside.

Figure 3 Removing the Cable-Management Tray from the Cisco 12008

This completes the procedure for removing the cable-management tray from the Cisco 12008.

Installing a Cable-Management Tray

To install a cable-management tray while the system is operating, perform the following steps.


Note   Before accessing any of the router's internal components, put on an antistatic wrist strap and make sure that it makes adequate contact with your skin. Insert the equipment end of the wrist strap (the banana jack) into the ESD grounding socket on the lower left edge of the upper card cage (see ).



Step 1 Remove the replacement cable-management tray from its shipping container.

Step 2 Position the cable-management tray at an angle so that its top is oriented toward the tray recess in the router enclosure (see ).

Step 3 Pivot the bottom of the cable-management tray inward toward the router until it is flush against the sheet metal in the tray recess (see , part 1).

Step 4 Secure the cable-management tray in the recess with the two right-most installation screws that you set aside in the previous procedure entitled "Removing a Cable-Management Tray" on page 3 .

Figure 4 Installing a Cable Management Tray

Step 5 Install the end cap onto the chassis by pushing it onto the chassis fasteners (see , part 2).

Step 6 Secure the cable-management tray in the recess with the remaining two installation screws that you set aside in the previous procedure entitled "Removing a Cable-Management Tray" on page 3 .

Step 7 Install the top trim piece onto the chassis by pushing it onto the chassis fasteners (see , part 3).

Step 8 Carefully arrange the attached interface cables in the bottom of the cable-management tray so that they emerge from the tray directly over the intended line card (see ).

This completes the procedure for installing the cable-management tray in the Cisco 12008.

Removing a Cable-Management Bracket

To remove a cable-management bracket from a line card, perform the following steps.


Note   Before accessing any of the router's internal components, put on an antistatic wrist strap and make sure that it makes adequate contact with your skin. Insert the equipment end of the wrist strap (the banana jack) into the ESD grounding socket on the lower left edge of the upper card cage (see ).



Step 1 On a piece of paper, list the current interface cable connections to the port(s) on each line card.


Note   This step may be unnecessary. If the interface cables were originally installed properly, the length of each cable should leave little question regarding the port to which it should be connected.


Step 2 Starting with the interface cable for the bottom port on the line card (for cards with multiple ports), disconnect the cable from the bottom line card port (see , part 1).

Step 3 Proceeding upward, remove the interface cable from between all the metal fingers supporting the cable keeper clips (see , part 2).

Step 4 Remove the interface cable from the associated cable keeper clip (see , part 3). Set the cable aside for later use.

Figure 5 Removing Interface Cables from a Line Card

Step 5 Go back to Step 2 and proceed through the cable removal procedure in a bottom to top direction until you have removed all of the interface cables from the line card ports.

Step 6 Once all of the line card interface cables are removed, loosen the captive installation screws at the top and bottom of the cable-management bracket (see ).

Step 7 Remove the cable-management bracket from the line card.

Figure 6 Removing the Cable-Management Bracket

This completes the procedure for removing a cable-management bracket from the Cisco 12008.

Installing a Cable-Management Bracket

For the following procedure, it is assumed that you have installed a new line card in the router, in which case you must also install a cable-management bracket on the card. A small hook on the top of the cable-management bracket allows you to hook the bracket onto small cutouts on the cable-management tray during a line card replacement procedure.

To install a cable-management bracket on a line card, perform the following steps.


Note   Before accessing any of the router's internal components, put on an antistatic wrist strap and make sure that it makes adequate contact with your skin. Insert the equipment end of the wrist strap (the banana jack) into the ESD grounding socket on the lower left edge of the upper card cage (see ).



Step 1 Attach the cable-management bracket to the line card by means of the two captive installation screws at the top and bottom of the cable-management bracket (see ).

Figure 7 Attaching a Cable-Management Bracket to a Line Card

Step 2 Carefully arrange the interface cables in the cable-management tray (for line cards with multiple ports); determine the appropriate length of each cable for the intended port and route the cables down to the line card ports.

Step 3 Starting with the bottom port on the line card, connect the interface cables to the intended port (see , part 1).

Step 4 Carefully press the interface cable into the associated cable keeper clip on the cable-management bracket clip (see , part 2). Avoid any kinks or sharp bends in cable.

Step 5 Proceeding upward, carefully press the interface cable between the metal fingers that support the cable keeper clips (see , part 3).

Figure 8 Installing Interface Cables onto a Line Card

Step 6 Go back to Step 3 and proceed through the cable attachment procedure in a bottom-to-top direction until you have attached all the interface cables to the line card ports.

This completes the procedure for installing a cable-management bracket into the Cisco 12008.

Cisco Connection Online

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Note   If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact Cisco's Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.


78-4958-02