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Cisco 12008 Gigabit Switch Router Fan Tray Replacement/Upgrade Instructions

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Cisco 12008 Gigabit Switch Router Fan Tray Replacement and Upgrade Instructions

Table Of Contents

Cisco 12008 Gigabit Switch Router Fan Tray Replacement and Upgrade Instructions

Installation Safety, ESD Precautions, and Tools Required

Safety Guidelines

Safety with Electricity

Preventing Electrostatic Discharge Damage

Required Tools and Parts

Replacing or Upgrading the Fan Trays

Removing the Fan Tray from the Lower Card Cage

Upgrading the Air Filter Assembly

Installing the Mounting Stud Assemblies

Attaching the EMI Door

Attaching the Air Filter Basket

Installing the Fan Tray into the Lower Card Cage

Removing the Power Supply Fan Tray

Installing the Power Supply Fan Tray

Checking the Installation of a Fan Tray

Status LEDs for Fan Trays

Regulatory, Compliance, and Safety Information

Translated Safety Warnings and Agency Approvals

Electromagnetic Compatibility Regulatory Statements

FCC Class A Compliance

CISPR 22

Canada

Europe—EU

VCCI Class A Notice for Japan

Class A Notice for Hungary

Class A Notice for Taiwan and Other Traditional Chinese Markets

Class A Notice for Korea

Obtaining Documentation


Cisco 12008 Gigabit Switch Router Fan Tray Replacement and Upgrade Instructions


Product Numbers: GSR8-SYSBLOWER=, GSR8-PWRBLOWER-B=, GSR8-FLTASM-UPG-B=

This document provides instructions for replacing the fan trays used in the Cisco 12008 Gigabit Switch Router (GSR). The document contains the following sections:

Installation Safety, ESD Precautions, and Tools Required

Replacing or Upgrading the Fan Trays

Regulatory, Compliance, and Safety Information

Obtaining Documentation

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

Installation Safety, ESD Precautions, and Tools Required

Before installing or removing a fan tray, review the safety guidelines in this section to prevent injury to yourself or damage to the equipment. This section also lists the tools and parts that you will you need to perform the installation/removal procedure.

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 you are working with the router's electrical and electronic components.

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

Keep tools and 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 router's electrical and electronic equipment:

Before beginning any procedure requiring access to the card cages or other interior 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.

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. 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.

Required Tools and Parts

You need the following tools and parts if you want to install or replace a fan tray:

1/4-inch flat-blade screwdriver

M4 hex balldriver

ESD-preventive wrist strap

GSR8-SYSBLOWER(=)—Lower card cage fan tray

GSR8-PWRBLOWER(=)—Power supply fan tray

If you are upgrading the lower card cage fan tray, you will install a new air filter and EMI door assembly kit, which includes replacement mounting studs:

GSR8-FLTASM-UPG-B(=)—Air filter assembly upgrade kit

GSR8-FILTER(=)—Filter

GSR8-FILTERCAGE(=)—Filter cage

GSR8-FILTERDOOR(=)—Filter door

Replacing or Upgrading the Fan Trays

This section presents the procedures for removing, installing, and verifying the installation of the fan trays in a Cisco 12008.


Note The Cisco 12008 fan trays cannot be used in any other member of the GSR family of gigabit switch routers.


The Cisco 12008 supports online insertion and removal of field-replaceable units (FRUs); thus, you can remove and replace a fan tray while the rest of the system remains powered up and fully operational.


Caution If you intend to replace a fan tray while the Cisco 12008 remains powered on, you should quickly remove and replace the defective fan tray to minimize the risk of overheating system components. The system shuts down approximately 2 minutes after reaching the shutdown temperature threshold; therefore, replacement needs to take place within this time frame.

Removing the Fan Tray from the Lower Card Cage

To remove the fan tray from the lower card cage, refer to Figure 1 and perform the following steps:


Note 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 socket on the lower left edge of the upper card cage.



Step 1 Loosen the two panel fastener screws on each side of the air filter assembly and remove the assembly to expose the interior of the lower card cage and set it aside.


Note If you are upgrading the lower fan tray air filter assembly, stop here and continue with the section, Upgrading the Air Filter Assembly.


Figure 1 Removing the Card Cage Fan Tray from the Router

Step 2 Loosen the two captive installation screws at the sides of the fan tray.

Step 3 With one hand, grasp the ring-shaped insertion/extraction tab in the middle of the fan tray carrier; gently slide the fan tray halfway out of the guide rails to disengage the fan tray connector from the backplane.

Step 4 Place your free hand beneath the fan tray to support its weight and slide the module completely out of the card cage.

Step 5 Set the fan tray aside.


Caution This assembly weighs approximately 12 pounds (5.4 kilograms). For safety, use both hands when handling this assembly.

If you plan to return the removed fan tray to the factory for repair or replacement, repackage the fan tray in the original shipping container, if available, and prepare the package for return shipment.

Upgrading the Air Filter Assembly

Before proceeding, we assume that you have removed the existing air filter assembly shown in Figure 1. Have available the air filter assembly upgrade kit, consisting of an air filter basket, the EMI door, and two (2) mounting stud assemblies. You will need the M4 hex balldriver, included in the upgrade kit. Upgrading the air filter assembly consists of the following procedures:

Installing the Mounting Stud Assemblies

Attaching the EMI Door

Attaching the Air Filter Basket

Installing the Mounting Stud Assemblies

The following steps describe how to install the mounting stud assembly on the left side of the chassis inside the lip of the fan tray slot. Repeat the process to install the mounting stud assembly on the right side of the chassis. The mounting stud assembly is designed to reinforce the original air filter mounting tabs and can be used even when the original studs are missing.


Step 1 Remove the mounting stud assembly from its packaging and loosen, but do not remove, the two allen screws. Figure 2 shows the alignment and assembly process.

Step 2 Align the mounting stud assembly over the original air filter mounting standoff post.

Step 3 Using the supplied M4 hex balldriver, tighten the mounting stud assembly in place. Refer again to Figure 2, which shows how the original fan filter mounting stud aligns in the new mounting stud assembly.

Step 4 If the original air filter mounting stud is missing, use the supplied allen head screw to align the replacement mounting stud assembly with the original air filter mounting tabs. Figure 3 shows the alignment and assembly process when the stud is missing.

Step 5 Repeat these steps to upgrade the air filter mounting studs on the right side of the chassis. Carefully check that all the allen head screws are tightened.

Figure 2 Mounting Stud Assembly, Original Studs In Place (Left Side Shown)

Figure 3 Stud Assembly, Original Stud Missing (Left Side Shown)

Attaching the EMI Door

The mounting stud assemblies must be installed on the left side and right side of the chassis, inside the lip of the fan tray slot, before you can attach the EMI door as described in the following procedure.


Step 1 Align the EMI door assembly with the chassis as shown in Figure 4.


Note Make sure the larger, forked tabs are at the top and the smaller, slotted tabs are at the bottom of the EMI door assembly when you fasten it over the fan tray.


Step 2 Tighten the two mounting screws. The mounting screws attach to the mounting stud assemblies that you installed in the previous procedure, "Installing the Mounting Stud Assemblies" section.

Figure 4 Installing the EMI Door Assembly

Attaching the Air Filter Basket

To attach the air filter basket to the EMI door assembly, refer to Figure 5 and perform the following steps:


Step 1 Locate the two short tabs on the bottom of the air filter basket and insert them into the slots on the EMI door assembly.

Step 2 Rotate the air filter basket so that the longer, forked tabs on the EMI door assembly slip around the mounting screws on the top of the air filter basket.

Step 3 Tighten the air filter basket fastener screws so that the filter assembly is securely fastened to the EMI door assembly.

Figure 5 Attaching the Air Filter Basket to the EMI Door Assembly

Installing the Fan Tray into the Lower Card Cage

For the following procedure, it is assumed that you have already removed the defective fan tray from the lower card cage.


Note The Cisco 12008 fan trays cannot be used in any other member of the GSR family of gigabit switch routers.


To replace the fan tray in the lower card cage, perform the following steps:


Caution For safety, use both hands when handling this assembly.


Note If you are not already wearing an antistatic wrist strap, put one on 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 socket on the lower left edge of the upper card cage.



Step 1 With one hand, grasp the ring-shaped insertion/extraction tab in the middle of the new fan tray carrier and raise the front end of the assembly.

Step 2 Place your free hand underneath the assembly to help support its weight, then position the assembly in front of the guide rails in the lower card cage.

Step 3 Carefully insert the fan tray carrier guides into the guide rails (Figure 6).

Step 4 Using gentle pressure on the insertion/extraction tab, fully insert the module until the sheet metal carrier rests against the stops for the captive installation screws and the mating connector at the back of the module fully inserts into the backplane.

Figure 6 Inserting the Card Cage Fan Tray Assembly into the Router


Note All electrical connections are a made automatically when the fan tray and backplane connectors mate. The fan tray then immediately powers up.


Step 5 Tighten the two captive installation screws at the sides of the fan tray carrier.

Step 6 Restore the EMI door and air filter cage assembly to cover the lower card cage and fully enclose the router. Secure the assembly in place by tightening its two panel fastener screws.

To verify that the card cage fan tray is operating properly, go to the section "Checking the Installation of a Fan Tray" section.

Removing the Power Supply Fan Tray

For the following procedure, it is assumed that your Cisco 12008 is equipped with one or two power supplies and a power supply fan tray.


Note The Cisco 12008 fan trays cannot be used in any other member of the GSR family of gigabit switch routers.


To remove the power supply fan tray, refer to Figure 7 and perform the following steps:


Note If you are not already wearing an antistatic wrist strap, put one on 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 socket on the lower left edge of the upper card cage.



Step 1 Loosen the captive installation screw on the honeycomb faceplate of the power supply fan tray.

Step 2 With one hand, grasp the loosened captive installation screw on the power supply fan tray faceplate; gently pull the fan tray halfway out of the guide rails to disengage the fan tray connector from the backplane.

Step 3 Using both hands, grasp the fan tray from above and slide the module completely out of the card cage.

Figure 7 Removing the Power Supply Fan Tray from the Router


Caution For safety, make sure that the fans have stopped before grasping the fan tray.

Step 4 Set the fan tray aside.

If you plan to return the removed fan tray to the factory for repair or replacement, repackage the fan tray in the original shipping container, if available, and prepare the package for return shipment.

Installing the Power Supply Fan Tray

For the following procedure, it is assumed that you have already removed the defective fan tray from the power supply bay.


Note The Cisco 12008 fan trays cannot be used in any other member of the GSR family of gigabit switch routers.


To install the fan tray in the power supply bay, refer to Figure 8 and perform the following steps:


Note If you are not already wearing an antistatic wrist strap, put one on 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 socket on the lower left edge of the upper card cage.



Step 1 Using both hands, grasp the power supply fan tray from above.

Step 2 Raise the front end of the assembly and position the assembly in front of the guide rails in the power supply bay.

Step 3 Carefully insert the fan tray into the guide rails in the power supply bay.

Figure 8 Inserting the Power Supply Fan Tray into the Router

Step 4 Using gentle pressure on the edges of the fan tray faceplate, fully insert the module into the bay until the sheet metal carrier of the fan tray rests against the stop for the captive installation screw.

Step 5 Tighten the captive installation screw on the fan tray faceplate.

To verify that the power supply fan tray is operating properly, go to the following section.

Checking the Installation of a Fan Tray

To verify that a replacement fan tray is operating properly, perform the following steps:


Step 1 Check the following components to make sure they are secure:

The power supply fan tray is inserted all the way into the power supply bay, and its captive installation screw is tightened.

The card cage fan tray is inserted all the way into the card cage, and its two captive installation screws are tightened.

The air filter assembly is securely installed on the front of the lower card cage.

Step 2 Observe the status LEDs on the CSC faceplate (see the "Status LEDs for Fan Trays" section).

Step 3 Listen for the sound of the cooling fans in the card cage fan tray and the power supply fan tray. In noisy environments, it may be difficult to hear the fans running.

Step 4 Run your hand along the entire width of the top rear of the router enclosure (see Figure 8) to verify that air is being exhausted from the upper card cage and the power supply bays.

If either fan tray fails to operate properly, ask your Cisco service representative for assistance.

Status LEDs for Fan Trays

The status LEDs for the fan trays are arranged side-by-side on the clock and scheduler card (CSC) faceplate. The positions of the LEDs correspond to the positions of the fan trays in the Cisco 12008
(see Figure 9). The left LED indicates the status of the card cage fan tray, and the right LED indicates the status of the power supply fan tray. Table 1 lists the status LEDs and describes the significance of each fan Tray Status LEDs on the Clock and Scheduler Card.

Table 1 Fan Tray Status LEDs

Status LEDs
State
Description

Left LED

On (amber)

Indicates that a fault exists in the card cage fan tray

Right LED)

On (amber)

Indicates that a fault exists in the power supply fan tray

Both LEDs

Off

Indicates that both fan trays are operating normally


Figure 9 Fan Tray Status LEDs on the Clock and Scheduler Card

If a fan in one of the fan trays fails, the following events occur:

Fan speed on both fan trays increases to the maximum rate, even in the absence of an over-temperature condition within the router.

The appropriate status LED on the CSC faceplate illuminates (see Figure 9), indicating which fan tray has failed.

You can check the status of the LEDs by using the show environment leds privileged EXEC command. You can check the status of the fan trays by using the show environment all privileged EXEC command.

Regulatory, Compliance, and Safety Information

This section includes regulatory, compliance, and safety information in the following sections:

Translated Safety Warnings and Agency Approvals

Electromagnetic Compatibility Regulatory Statements

Translated Safety Warnings and Agency Approvals

The complete list of translated safety warnings and agency approvals is available in the Regulatory Compliance and Safety Information for Cisco 12000 Series Routers publication (Document Number 78-4347-xx).

Electromagnetic Compatibility Regulatory Statements

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

Modifying the equipment without Cisco's authorization may result in the equipment no longer complying with FCC requirements for Class A digital devices. In that event, your right to use the equipment may be limited by FCC regulation and you may be required to correct any interference to radio or television communication at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

Turn the television or radio antenna until the interference stops.

Move the equipment to one side or the other of the television or radio.

Move the equipment farther away from the television or radio.

Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

CISPR 22

This apparatus complies with CISPR 22/EN55022 Class B radiated and conducted emissions requirements.

Canada

English Statement of Compliance

This class A digital apparatus complies with Canadian ICES-003.

French Statement of Compliance

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

Europe—EU

This apparatus complies with EN55022 Class B and EN55024 standards when used as ITE/TTE equipment, and EN300386 for Telecommunications Network Equipment (TNE) in both installation environments, telecommunication centers and other indoor locations.

VCCI Class A Notice for Japan

Warning


This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions. Statement 191


Class A Notice for Hungary

Warning


This equipment is a class A product and should be used and installed properly according to the Hungarian EMC Class A requirements (MSZEN55022). Class A equipment is designed for typical commercial establishments for which special conditions of installation and protection distance are used. Statement 256


Class A Notice for Taiwan and Other Traditional Chinese Markets

Warning


This is a Class A Information Product, when used in residential environment, it may cause radio frequency interference, under such circumstances, the user may be requested to take appropriate countermeasures. Statement 257


Class A Notice for Korea

Warning


This is a Class A Device and is registered for EMC requirements for industrial use. The seller or buyer should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use type. Statement 294


Obtaining Documentation

For information on obtaining documentation and support, providing documentation feedback, security guidelines, and recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation. After the list of new and revised Cisco technical documentation, click the links beginning with Obtaining Documentation in the table of contents at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html