Cisco 7513 Series Leitfaden

Doc. No.

Cisco Systems, Inc.

Cisco 7513 Card Cage and Backplane Assembly

Replacement Instructions

78-1895-01

Product Number MAS-7513CDCAGE=

The card cage and backplane assembly for the Cisco 7513 chassis can be replaced in the ﬁeld.

Note The card cage and backplane assembly is a single ﬁeld-replaceable unit (FRU) that requires

replacement by a Cisco-certiﬁed service provider only. This document assumes you have already

performed troubleshooting on your chassis and system; therefore, this replacement procedure is

indicated.

This document discusses the procedures required to replace the card cage assembly, and includes the

following sections:

•Product Overview, page 2

•Installation Safety, ESD Precautions, and Tools Required, page 3

•Removing a Power Supply, page 9

•Removing and Replacing the Card Cage and Backplane Assembly, page 12

•Replacing a Power Supply, page 14

•Checking the System, page 14

•Cisco Information Online, page 17

Caution Before replacing the card cage and backplane assembly, read the section “Safety

Guidelines” on page 3. The speciﬁc procedures for removing and installing the card cage and

backplane assembly might require two people to perform.

2Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions

Product Overview

The Cisco 7513 card cage holds the processor modules used by the system. The Cisco 7513 is shown

in Figure 1. The card cage and backplane are one assembly that includes the card cage, backplane,

dual arbiter, and the chassis interface. The latter two components are printed circuit boards, which

are attached to the rear of the backplane. The dual arbiter and chassis interface are replaced when

the card cage and backplane assembly is replaced.

Figure 1 Cisco 7513—Rear-Panel View

Figure 2 shows the location of the dual arbiter and chassis interface on the rear of the backplane.

ENABLE

H3087

EJECT

SLOT 0

SLOT 1

NORMAL

CPU HALT

RESET

AUX.

CONSOLE

ROUTE SWITCH PROCESSOR 2

SLAVE

MASTER

SLAVE/MASTER

FAIL

POWER

Blower module

Cable-management

bracket

Card cage and

processor modules

Air intake vent

Power supplies

Chassis grounding

receptacle (2)

OK OK

AC FAN

OUTPUT

OK OK FAIL

AC FAN

OUTPUT

Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions 3

Installation Safety, ESD Precautions, and Tools Required

Figure 2 Location of the Dual Arbiter and Chassis Interface on the Rear of the Backplane

Installation Safety, ESD Precautions, and Tools Required

Before you begin replacing the backplane and card cage assembly, review the safety guidelines in

this section to avoid injuring yourself or damaging the equipment. This section also lists of the tools

and parts you need to perform this procedure.

Safety Guidelines

The following guidelines will help to ensure your safety and protect the equipment. This list is not

inclusive of all potentially hazardous situations, so be alert.

•Never try to lift the chassis by yourself; two people are required to lift the Cisco 7513.

•Always disconnect all power cords and interface cables before moving the chassis.

•Keep tools and chassis components away from walk areas.

•Do not work alone if potentially hazardous conditions exist.

•Do not perform any action that creates a potential hazard to people or makes the equipment

unsafe.

•Carefully examine your work area for possible hazards such as moist ﬂoors, ungrounded power

extension cables, and missing safety grounds.

H3101

Dual arbiter

Chassis

interface

4Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions

Installation Safety, ESD Precautions, and Tools Required

Safety with Electricity

Follow these basic guidelines when working with any electrical equipment:

•Before beginning any procedures requiring access to the chassis interior, locate the emergency

power-off switch for the room in which you are working.

•Disconnect all power and external cables before moving a chassis.

•Do not work alone if potentially hazardous conditions exist.

•Never assume that power is disconnected from a circuit; always check.

•Do not perform any action that creates a potential hazard to people or makes the equipment

unsafe.

•Carefully examine your work area for possible hazards such as moist ﬂoors, ungrounded power

extension cables, and missing safety grounds.

In addition, use the guidelines that follow when working with any equipment that is 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 is disconnected

at the network interface.

•Use caution when installing or modifying telephone lines.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic boards or components are

handled improperly, can result in complete or intermittent failures.

Following are guidelines for preventing ESD damage:

•Always use an ESD-preventive wrist strap or ankle strap and ensure that it makes good skin

contact.

•When removing or installing an ESD sensitive component, connect the equipment end of a

ground strap to an unpainted surface of the chassis, such as the chassis frame.

•If you are returning a replaced part to the factory, immediately place it in a static shielding bag

to avoid ESD damage to the board.

•The wrist strap only protects the board from ESD voltages on the body; ESD voltages on clothing

can still cause damage.

Warning For safety, periodically check the resistance value of the antistatic strap. The

measurement should be between 1 and 10 megohms.

Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions 5

Removing Processor Modules

Tools Required You need the following tools to install or replace backplane and card cage assembly:

•A 1/4-inch ﬂat-blade screwdriver to loosen the captive screws on the power supplies and card

cage

•You will need a number 1 Phillips or 1/4-inch ﬂat-blade screwdriver to remove any blank

processor module carriers (ﬁllers) and to tighten the captive installation screws that secure the

processor module in its slot.

•Spare card cage assembly—includes the card cage with the chassis interface (attached) and dual

arbiter (attached)

•ESD-preventive wrist strap.

•Antistatic packaging in which the old card cage assembly should be placed

Removing Processor Modules

Replacing the card cage and backplane assembly ﬁrst requires you to remove all processor modules

installed in the card cage, and then replace them after the new card cage assembly is in place. The

term processor module refers to the RSP2 and all interface processors.

Note Always use the ejector levers when installing or removing processor modules. A module that

is partially seated in the backplane will cause the system to hang and subsequently crash.

Timesaver To save time when you reinstall the processor modules in the card cage and reconnect

interface cables, use the port and slot worksheet in Table 1 to note which cables are connected to

which interface processor ports. (Also refer to Figure 10.)

Timesaver Before you can remove the card cage and backplane assembly, you must remove all

processor modules and both power supplies. Plan this procedure so that you can minimize its effects

on your system.

To remove a processor module, follow these steps:

Step 1 Turn OFF power to the chassis. If two power supplies are installed, the power switch on

each supply must be in the OFF (O) position.

Step 2 Attach an ESD-preventive strap between you and an unpainted surface on the chassis.

Step 3 If there is not enough slack in the network interface cables to remove the processor module

without straining the cables, disconnect any cables attached to the interface ports.

Step 4 You must pull each processor modules straight out of its slot. Ensure that there are no

obstructions that will prevent you from doing so, such as a power strip on a rack post,

network connection devices attached to adjacent processor modules, or extensive cabling

in front of the processor slots.

Step 5 Use a screwdriver to loosen the captive installation screws at the both ends of the processor

module. (See Figure 3a.)

6Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions

Removing Processor Modules

Step 6 Place your thumbs on the ejector levers on both ends of the processor module (see

Figure 3c) and simultaneously pull them both outward to release the processor module

from the backplane connector.

Step 7 Grasp the processor module handle with one hand and place your other hand under the

carrier to support it. Pull the processor module straight out of the slot keeping it at a

90-degree orientation to the backplane. (See Figure 5 on page 8.)

Figure 3 Ejector Levers and Captive Installation Screws

H1482a

Processor module

slot

STOP!

on contact

Bottom ejector lever

Captive

installation 

screw

Processor

module

carrier guide

Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions 7

Removing Processor Modules

Step 8 Place the removed processor modules in the black cardboard, board racks that were

provided with the original equipment packaging. (See Figure 4.) You can place all 13

processor modules in these holders.

Figure 4 Board Rack with Processor Modules

Caution To prevent damage to the processor modules, do not stack them one on top of another.

H3589

8Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions

Replacing Processor Modules

You can replace an interface processor in any of the eleven interface processor slots, numbered 0

through 5 (CyBus 0) and 8 through 12 (CyBus 1), from left to right, viewing the chassis from the

interface processor end. (See Figure 1.) Slot 6 or 7 can contain the RSP2. Blank processor module

ﬁllers are installed in slots without processor modules to maintain consistent air ﬂow through the

card cage.

Figure 5 Handling a Processor Module during Installation

Caution Handle processor modules by the handles and carrier edges only to prevent ESD damage.

To replace a processor module, follow these steps:

Step 1 Turn OFF power to the chassis. If two power supplies are installed, the power switch on

each supply must be in the OFF (O) position.

Step 2 Processor modules are secured with two captive installation screws. Use a number 1

Phillips or a 1/4-inch ﬂat-blade screwdriver to loosen the two captive installation screws

and remove the processor module ﬁller (or the existing processor module) from the slot to

be ﬁlled.

Step 3 Hold the processor module handle with one hand, and place your other hand under the

carrier to support it. (See Figure 5.) Avoid touching the board.

Step 4 Place the back of the processor module in the slot and align the carrier guides along the

sides of the processor module with the grooves in the top and bottom of the slot. (See

Figure 3a.)

Step 5 While keeping the processor module at a 90-degree orientation to the backplane, carefully

slide the processor module into the slot until the processor module faceplate makes contact

with the ejector levers.

H1355a

Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions 9

Removing a Power Supply

Step 6 Using your thumbs, simultaneously push both ejector levers inward until they push the

processor module completely into the slot. The ejector levers should be in approximately

the same orientation as the processor module faceplate. (See Figure 3c.)

Caution Always install blank processor module ﬁllers in empty processor slots to maintain the

proper ﬂow of cooling air through the chassis.

Step 7 Use a screwdriver to tighten both captive installation screws on each processor module.

Step 8 Attach network interface cables or other devices to the interface ports. Use the notes you

made in the slot and port worksheet in Table 1.

Step 9 After you reconnect power and turn ON power, check the status of the interfaces as follows:

•Use the show interface [type] or show controller [type] command to verify that the

system has acknowledged the interfaces and brought them up.

•Use the conﬁgure command or the setup command facility to conﬁgure any new

interface(s) you might have installed. This does not have to be done immediately, but

the interfaces will not be available until you conﬁgure them.

Removing a Power Supply

Replacing the card cage and backplane assembly ﬁrst requires you to remove power supplies (and

the power supply blank if one is installed, in a system with one power supply), and then replace them

after the new card cage assembly is in place.

Follow these steps to remove a power supply.

Step 1 Turn OFF (O) the system power switch on each power supply you plan to remove.

Step 2 Disconnect the power supply cables from the power supplies.

For DC-input power supplies, refer to the conﬁguration note “1200-Watt DC-Input Power

Supply Replacement Instructions” (Document Number 78-1899-01) that shipped with the

Cisco 7513 chassis equipped with DC-input power supplies.

For AC-input power supplies, refer to the conﬁguration note “1200-Watt AC-Input Power

Supply Replacement Instructions” (Document Number 78-1900-01) that shipped with the

Cisco 7513 chassis equipped with AC-input power supplies.

Step 3 Use a large slotted screwdriver to loosen the captive screw that secures the power supply to

the chassis frame. (See Figure 6.)

10 Cisco 7513 Card Cage and Backplane Assembly Replacement Instructions

Removing a Power Supply

Figure 6 Removing a Power Supply (AC-Input Power Supplies Shown)

Step 4 Graspthepowersupplyhandleandpullthepowersupplyabouthalfway out of the bay, then

with your other hand under the power supply, pull it completely out of the bay. (See

Figure 7.)

Figure 7 Supporting the Power Supply (AC-Input Power Supply Shown)

H3117

OK OK FAIL

AC FAN

OUTPUT

OK OK FAIL

AC FAN

OUTPUT

POWER

Captive screws

H3029

OK OK FAIL

AC FAN

OUTPUT

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