Cisco CRM3 Hardware Installation And Maintenance

ems

en

SYsTEM

CRM3

Hardware

Installation

and

Maintenance

Corporate Headquarters

Cabletron

Systems

35

Industrial

Way

Rochester

New

Hampshire

03867-5005

603

332-9400

Cabletron

Systems

Network

House

Newbury

Business Park

London

Road

Newbury

Berkshire

England

RG13

2PZ

Text

Part

Number

78-1189-01

The

products

and

specifications configurations

and

other

technicat

information

regarding

the

products

contained

in this

manual

are

subject

to

change

without notice

All

statements

technical

information

and recommendations

contained

in this

manual

are

believd

to

be

accurate

and

reliable

but

are

presented

without

svarranty

of

any

kind

express

or

implied

and

users

must

take

full

responsibility

for their

application

of

any

products

specified

in this

manual THIS

MANUAL

IS

PROVIDED AS

IS

WtTH

ALL

FAULTS

CISCO DISCLAIMS

ALL

WARRANTIES EXPRESSED

OR

IMPLIED

INCLUDING

THOSE OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE OR

ARISING

FROM COURSE OF

DEALING

USAGE OR TRADE

PRACTICE

IN

NO

EVENT

SHALL

CISCO

BE

LIABLE

FOR ANY

INDIRECT SPECIAL

CONSEQUENTIAL

OR

INCIDENTAL

DAMAGES

INCLUDING

WITHOUT

LIMITATION

LOST

PROFITS

OR LOSS OR DAMAGE TO DATA

ARISING

OUT OF THE USE OR

INABILITY

TO USE

THIS

MANUAL EVEN

IF

CISCO

HAS BEEN ADVISED OF THE

POSSIBILITY

OF SUCH DAMAGES

Some

states

do

not

allow

limitation

or

exclusion

of

liability

for

consequential

or incidental

damages

or

limitation

on

hosv

long

implied

warranties

last

so

the

above

limitations

or

exclusions

may

not

apply

to

you

This

svarranty

gives

Customers

specific legal rights

and

you

may

also

have

other

rights

that

vary

from

state to

state

This

equipment

generates

uses and

can

radiate radio

frequency energy

and

if

not

instslled

and used

in

accordance

with

the

instructions

manual

may

cause

interference

to

radio

communicstions

This

equipment

has

been

tested

and found

to

comply

with

the

limits for

Class

computing

device

pursuant

to

Subpart

of Part

15

of

FCC

Rules

svhich

are designed

to

provide

reasonable

protection

against

such

interference

svhen

operated

in

consmercial

environment

Operation

of

this

equipment

in

residential

area

is

likely

to

cause

interference

in

which

csse the user

at

his

own

expense

will

be

required

to

take

whatever measures

msy

be

required

to

correct

the

interference

The

Cisco

implementation

of

TCP

header

compression

is

an

adaptation

of

program

developed by

the

University

of

California

Berkeley

UCB

as

part

of

UCBs

public

domain

version

of

the

UNIX

operating

system

All

rights

reserved

Copyright

1981

Regents

of

the

University

of California Redistribution

and

use

in

source

and

binary

forms

are

permitted

provided

that

the

above

copyright

notice

and

this

paragraph

are

duplicated

in all

such

forms

and

that

any

documentation

advertising

materials

and

other materials

such

distribution

and

use scknosvledge

that

the software

was developed by

the

University

of California

Berkeley

The

name

of

the

University

may

not

be

used

to

endorse

or

promote

products

derived

from

this

softsvare

without

specific

prior

written

permission

THIS

SOFTWARE

IS

PROVIDED

AS

IS

AND WITHOUT ANY EXPRESS OR

IMPLIED

WARRANTIES

INCLUDING

WITHOUT

LIMITATION

THE

IMPLIED

WARRANTIES

OF

MERCHANTIBILITY

AND

FITNESS

FOR PARTICULAR PURPOSE

Point-to-Point

Protocol

Copyright

1989

Carnegie

Mellon

University

All

rights

reserved

Redistribution

and

use

in

source

and

binary

forms

are

permitted

provided

that

the

above

copyright

notice

and

this

paragraph

are duplicated

in all

such

forms

and

that

any

documentation

advertising materials

and

other

materials related to

such

distribution

and

use acknosvledge

that

the

software

svas

developed by

Carnegie

Mellon

University

The

name

of

the

University

may

not

be

used

to

endorse

or

promote

products

derived

from

this

softsvare

without

specific

prior

written

permission

THIS

SOFTWARE

IS

PROVIDED

AS

IS

AND WITHOUT ANY EXPRESS OR

IMPLIED

WARRANTIES

INCLUDING

WITHOUT

LIMITATION

THE

IMPLIED

WARRANTIES

OF

MERCHANTIBILITY

AND

FITNESS

FOR PARTICULAR PURPOSE

Notice

of Restricted

Rights

Use

duplication

or disclosure

by

the

Government

is

subject

to

restrictions

as

set

forth

in

subparagraph

of

the

Commercial

Computer

Software

Restricted

Rights

clause

at

FAR

52.227-19

and

subparagraph

ii

of

the Rights

in

Technical

Data and

Computer

Softsvare clause

at

DFARS

252.227-7013 The

information

in this

manual

is

subject

to

change

svilhout

notice

Access

Without

Compromise ciscoBus

Cisco

Systems

CiscoWorks

CmBus

CpBus

CxBus

Netscape

The Packet

SMARTnet

and TIN-Bus

are

trademarks

and

the Cisco

logo

is

registered

trademark

of

Cisco

Systems

Inc

All

other

products

or

services

mentioned

in this

document

are the

trademarks

service

marks

registered

trsdemarks

or

registered

service

marks

of

their

reepective

osvners

CRM3 Hadmmae

Installation

and Maintenance

Copyright

1993

Cisco

Systems

Inc

All

rights

reserved

Printed

in

USA

TABLE

OF

CONTENTS

Publication

Objectives

xi

Audience

xi

Document

Organization

xi

Document

Conventions

xii

System

Specifications

1-1

Safety

Recommendations

2-1

Safety

with

Electricity

2-2

Preventing

Electrostatic

Discharge

Damage

2-2

About

This

Manual

xi

Chapter

Product

Overview

1-1

Chapter

Preparing

for

Installation

2-1

Chapter

Installing

the

Router

3-1

General

Site

Requirements

2-3

Site

Environment

2-3

Preventive

Site

Configuration

Installation

Checklist 2-3

Site

Log

2-5

2-3

2-5

Tools

and

Equipment

Required

Preparing

to

Make

Connections

2-5

Slot

Numbering

2-5

Unit

Numbering

2-7

RS-232

Connections

2-8

Console

and

Auxiliary

Ports

Connection

Considerations 2-9

Network

Connection

Considerations

2-10

Ethernet

Connections 2-10

Token

Ring

Connections 2-12

Serial

Connections 2-13

Fiber Distributed

Data

Interface

FDDI

Connections 2-16

Optical

Bypass

Switch

Uses

2-17

Inspecting

the

System

2-17

Installing

the

Router

3-1

External

Connections

3-2

Making

the

Console

Port

Connections

3-2

Making

Network

Connections

3-3

Router Software

Configuration

3-8

Table

of

Contents

iii

Chapter Troubleshooting

the

Initial

Hardware

Configuration

4-i

Troubleshooting

Overview

4-1

Problem

Solving

4-2

Troubleshooting

the

Network

Processor

Modules

and

Cables

4-2

Environmental

Reporting

Features

4-2

Reading

Front

Panel

LED

Indicators 4-3

Network

Processor

Module

LED

Indicators 4-5

FDDI

Network

Processor

Module

LED

Indications

4-10

Bootstrap

Program

4-11

Entering

the

Bootstrap

Program

4-11

Chapter

Maintenance

5-1

Tools

Required

5-i

Removing

the

Router

from

the

Hub

5-2

Removing

Network

Processor

Modules

5-2

Router

Memory

5-4

Flash

Jumper

Settings

5-4

SIMM

Replacement

Procedures

5-4

Removing

SIMMS

5-6

Installing

SIMMs

5-6

Recovering

Lost

Password

5-8

Appendix

Cabling Specifications

A-i

Cable

Assembly

Considerations

A-i

RS-232

Console

Port

Signals

and

Pinouts

A-2

RS-232

Auxiliary

Port

Signals

and

Pinouts

A-4

Serial

Cable

Pinouts

A-4

RS-232

Cable

Assembly

A-4

RS-449

Cable

Assembly

A-6

V.35

Cable

Assembly

A-8

X.21

Cable

Assembly

A-b

EIA-530 Cable

Assembly

A-12

Ethernet

Cable

Pinouts

A-13

Ethernet

AUI

Cable

Assembly

A-13

Ethernet

lOB

aseT

Cable

Assembly

A-

14

iv

CRM3

Hardware

Installation

and

Maintenance

Appendix

Virtual

Configuration Register

B-i

Virtual

Configuration Register

Settings

B-i

Configuration Register

Settings

B-2

Enabling

Booting

From

Flash

B-S

Index

Table

of

Contents

vi

CRM3

Hardware

Installation

and

Maintenance

OF

FIGURES

Figure

1-1

CRM3

RouterFront

View

1-2

Figure

2-1

Installation

Checklist 2-4

Figure

2-2

CRM3

RouterFront

View

2-6

Figure

2-3

Network

Processor

Module

Slot

Filler

Panel

2-8

Figure

2-4

Single-Port

Ethernet

Network

Processor

Module

with

AUI

and

lOBaseT

Connectors 2-10

Figure

2-5 Dual-Port Ethernet

Network

Processor

Module

ith

AUI

and

lOBaseT

Connectors 2-10

Figure

2-6 Dual-Port Ethernet

Network

Processor

Module lOB

aseT

Port

Connection

2-11

Figure

2-7 Dual-Port Ethernet

Network

Processor

Module

Ethernet

AUI

Port

Connection 2-11

Figure

2-8

Extending

the Transition

Cable

from

the Ethernet Port

2-12

Figure

2-9

Token

Ring

Network

Proce.ssor

Module

2-12

Figure

2-10

Token

Ring

Cable Connections 2-13

Figure

2-11

Serial

Port

Labeled

V2

2-13

Figure

2-12

Dual

Serial

Network

Processor

ModuleTop

View

2-14

Figure

2-13

Dual

Serial

Network

Processor

Module

Jumpers

J-4

and

J-5NRZI

Setting

2-14

Figure

2-14

Serial

Cable Connections 2-15

Figure

2-15

Multimode

FDDI

Network

Interface

Connector

MIC

Type

2-16

Figure

2-16

Dual Attachment

FDDI

Connections 2-17

Figure

3-1

Token

Ring

Network

Processor

Module

3-3

Figure

3-2

Single-Port

Ethernet

Network

Processor

Module

with

AUI

and

lOBaseT

Connectors

3-4

Figure

3-3 Dual-Port Ethernet

Network ProcessorModule

with

AUI

and

lOBaseT

Connectors

3-5

Figure

3-4

Serial

Port

Labeled

V2

3-6

Figure

3-5

Dual Attachment

Multimode

FDDI

ModuleEnd

View

3-6

Figure

3-6

Single

Attachment

Multimode

FDDI

ModuleEnd

View

3-7

Figure

3-7

Optical

Bypass

Switch

Installation

3-7

Figure

4-1

CRM3

RouterFront

View

4-3

Figure

4-2

Single-Port

Ethernet

Network

Processor

Module

4-5

Figure

4-3 Dual-Port Ethernet

Network

Processor

Module

4-5

Figure

4-4

Token

Ring

Network

Processor

Module

4-7

Figure

4-5

Serial

Port

Labeled

V2

4-8

Figure

4-6

Dual

Serial

Network

Processor

ModuleTop

View

4-8

Figure

4-7

Dual

Serial

Port

LED

CardSide

View

4-9

Figure

4-8

Dual Attachment

Multimode

FDDI

ModuleEnd

View

4-10

Figure

4-9

Single

Attachment

Multimode

FDDI

ModuleEnd

View

4-10

Figure

5-1

Component

Tray

5-3

List

of

Figures

vii

Figure

5-2

SIMM

Locations

5-5

Figure

5-3

Main-

and

Shared-Memory

SIMM

5-5

Figure

5-4 Flash

Memory

SIMM

5-6

Figure

5-5

Installing

SIMMs

5-7

Figure

A-i

RJ-45 Console Connector

and

Signals

A-2

Figure

A-2

RJ-45

AdaptersFront

and

Rear Views

A-3

Figure

A-3

RS-232

Cable

Assembly

A-4

Figure

A-4

RS-449

Cable

Assembly

A-6

Figure

A-5

V.35

Cable

Assembly

A-8

Figure

A-fl

X21

Cable

Assembly

A-b

Figure

A-i

EIA-530 Cable

Assembly

A-12

Figure

A-B

Ethernet

AUI

Cable

Assembly

A-13

viii

CRM3

Hardware

Installation

and

Maintenance

LIST

Table

1-1

Table

2-i

Table

2-2

Table

2-3

Table

4-1

Table

4-2

Table

A-i

TableA-2

TableA-3

TableA-4

TableA-5

TableA-6

Table

A-i

TableA-8

TableA-9

Table A-b

Table

A-il

Table A-12

Table A-13

Table

B-i

Table B-2

Table

B-3

Table

B-4

TableB-5

OF

TABLES

Router

Specifications

1-3

Unit

Numbering

for

Dual-S

erial

and Token

Ring

Modules

2-7

Unit

Numbering

for

Two

Dual-Serial

Modules

2-7

IEEE

Standard

RS-232C

Speed

Versus Distance

2-8

Dual

Serial

Network

Processor

Module

LED

Indications 4-9

Command

Options

4-12

RJ45

Signal

Names

and

Adapter

Pinouts

A-3

Auxiliary

Port

RS-232

Signals

DTE

25-Pin

D-Sub

Connector

A-4

RS-232

DTE

Serial

Cable

Pinout

and

Signals

A-S

RS-232

DCE

Serial

Cable

Pinout

and

Signals

A-S

RS-449

DTE

Serial

Cable

Pinout

and

Signals

A-6

RS-449

DCE

Serial

Cable

Pinout

and

Signals

A-7

V.35

DTE

Serial

Cable

Pinout

and

Signals

A-8

V.35

DCE

Serial

Cable

Pinout

and

Signals

A-9

X21

DTE

Serial

Cable

Pinout

and

Signals

A-i

X2i

DCE

Serial

Cable

Pinout

and

Signals

A-li

EIA-530

DTE

Serial

Cable

Pinout

and

Signal Description

A-12

Ethernet

AUI

Pinout

and

Signals

A-i

RJ-45 Connector

Pinout

and

Signals

A-14

Virtual

Configuration

Bit

Meanings

B-2

Explanation

of

Boot

Field

Configuration Register

Bits

00

to

03

B-2

Default

Boot

Filenames

B-4

Configuration Register Settings

for

Broadcast Address

Destination

B-S

System

Console

Terminal

Baud

Rate

Settings

B-S

Listollables

ix

CRM3

Hardware

Installation

and

Maintenance

Aboutlhis

Manual

This section

discusses

the

objectives

audience

organization

and

conventions

of the

CRM3

Hardware

Installation

and

Maintenance

publication

PuWication

Objectives

The

GRM3

Hardware

Installation

and

Maintenance

publication

will

step

you

through

the

installation

and

troubleshooting

of the

hardware

installation

It

also

covers

selected

maintenance

procedures

Audience

The

CRM3

Hardware

Installation

and

Maintenance

publication

is

designed

for

the

person

responsible

for

installing

the

CRM3

router

who

should

be

familiar

with

electronic

circuitry

and

wiring practices

and have

experience

as

an

electronic

or

electromechanical

technician

For

tutorial

on

initial

software

configuration

refer to

the

Router

Products

Getting

Started

Guide

publication

For

more

advanced

configuration applications

refer to

the router

products

software

documentation

Document

Organization

The

major

sections

of the

CRM3

Hardware

Installation

and

Maintenance

publication

follow

Chapter

Product

Overview

contains

an

overview

of the

CRM3

router

Chapter

Preparing

for

Installation

includes

safety

recommendations

tools

and

equipment

site

requirements

an

installation

checklist

console

and

auxiliary

port

cable connection

considerations

network

connection

considerations

and

unpacking

instructions

Chapter

Installing

the

Router

includes

instructions

for

installing

the router

in

the Cabletron

MMAC

and

making

external

connections

Chapter

Troubleshooting

the

Initial

Hardware

Configuration

includes

troubleshooting

overview

problem

solving

environmental

reporting

features reading

front

panel

LED

indications

network

processor

module

LED

indications

and

system

bootstrap diagnostics

Chapter

Maintenance

includes

instructions

for

removing

the router

from

the

hub

removing

network

processor

modules

replacing

or

adding

network

processor

modules

removing

and

replacing

the Flash

memory

and

replacing

SIMMs

About

This

Manual

xi

Document

Conventions

Appendix

Cabling

Specifications provides

cable

illustrations

cable

pinouts

and

signal

descriptions

for

synchronous

serial

cables

and

Ethernet

AUI

cables

Appendix

Virtual

Configuration

Register

describes the

CRM3

software

configuration

registers

the

factory-default settings

and

the

procedures

for

changing

those

settings

Document

Conventions

This

manual

uses

the

following

conventions

to

convey

instructions

and

information

Command

descriptions

use

these

conventions

Commands

and

keywords

are

in

boldface

Variables

for

which

you

supply

values

are

in italics

Elements

in

square

brackets

are

optional

Alternative but

required

keywords

are

grouped

in

braces

and

are

separated

by

vertical

bar

Samples

use these conventions

Terminal sessions are

in

screen

font

Information

you

enter

is in

boldface

screen

font

Nonprinting

characters are

shown

in

angle

brackets

Information the

system

displays

is in

screen

font

with default

responses

in

square

brackets

Note

Means

reader

take

note

Notes

contain

helpful

suggestions

or

references

to

materials

not

contained

in this

manual

Timesaver

Means

the

described

actions

saves

ti/ne

You

can save

time

by

performing

the action

described

in

the

paragraph

Caution

Means

reader

be

careful

You

are

capable

of

doing something

that

might

result

in

equipment

damage

or

loss

of

data

Warning

Means

danger

You

are

in

situation that

could

cause

bodily

injury

Before

you

work

on

any

equipment

be

aware

of the

hazards

involved with

electrical

circuitry

and

standard

practices

for

preventing

accidents

xii

CRM3

Hardware

Installation

and

Maintenance

CHAPTER

Product

OveMew

The

CRM3

is

two-slot

modular

multiprotocol

router

see

Figure

1-1

designed

for

insertion into

Cabletron

MMAC

hub

This

router

has

Token

Ring

backplane

connection

that

interfaces

to

the

MMAC

and

up

to

two

network

procesor

modulesindividual

modules

which

when

installed

in

the

router

are

ready

for

external

network hardware

connections

The

modular

design

of the

CRM3

and

MMAC

hub

allows users

to

hot

swap

the

router thereby

reducing

network downtime

Note

This

manual

applies

to

hardware

installation

only

For

initial

configuration

information

and

software

operating

information

refer

to

the

router

products

software

documentation

Design

features

follow

Modular

router

that

integrates

into

the Cabletron

family

of

MMAC

hubs

40-megahertz

MHz

Motorola

68EC030

32-bit

microprocessor

Support

for

up

to

two network

processor

modules

at

time

including

single

and

dual

Ethernet

Token

Ring

dual

serial

and

single

and

dual

attachment

multimode

Fiber Distributed

Data

Interface

FDDI

interfaces

Any

network

processor

modules

can be

placed

in

either

the

top

or

bottom

network

processor

module

slot

Any

desired

combination

of

network

processor

modules

is

supported

with the

exception

of dual

FDDI

network

processor

module

configuration

The

router

can

support only

one

FDDI

network

processor

module

in

either

slot

in

combination

with

any

other

network

processor

module

Note

To

successfully

operate

the

FDDI

network

processor

module

the

system

requires

megabytes

MB

of

shared

memory

Flash

memory

capability

User-upgradable

network

processor

modules

and

processor

local

and

shared

memory

Jumperless

router

configurations

Hardware

thermal alarm

to

warn

of

excessively

high

operating

temperature

Product Overview

1-1

System

Specifications

C-

CD

Cl

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61

7a

System

Specifications

Table

1-1

lists

the

specifications

for

the

router

Table

1-1

Router

Specifications

Description

Design

Specification

Dimensions

l55

11.5

10.16

cmx

39.37

cmx

29.2

cm

Weight

3.8

lb

chassis

without

network

processor

modules

1.7

kg

Power

Requirement

100W

340

Btu

Current

Requirement

20A

max

bA

per

slot

max

Processor

40-MHz

Motorola

68EC030

32-bit

wide

Main

Memory

MB

standard

16

MB

max

Shared

Memory

MB

standard

MB

max

Flash

Memory

MB

standard

MB

max

Nonvolatile

Memory

128

KB

standard

Network

Interface

Options

Single

and

dual

Ethernet

Token

Ring

dual

serial

single

and

dual

attachment multimode

FDDI

Serial

Interfaces

RS-232 RS-449

V.35

X21

EIA-530

Console

Port

RS-232

RJ-45 female connector

Auxiliary

Port

RS-232

DB-25

male connector

Operating Temperature

32

to

104F

to

40C

Nonoperating Temperature

40

to

185F

40

to

85C

Humidity

to

95%

noncondensing

Product Overview

1-3

System

Specifications

1-4

CRM3

Hardware

Installation

and

Maintenance

CHAPTER

Preparing

for

InstalOation

This

chapter

describes the

tasks

you

must

perform

before

installing

the router

into

the

hub

Topics

covered

in this

chapter

follow

Safety

recommendations

Safety

with

electricity

Preventing

electrostatic

discharge

ESD

damage

General

site

requirements

Installation

Checklist

Site

Log

Tools

and

equipment

required

Preparing

to

make

connections

Network

connection

considerations

Inspecting

the

system

Safety

Recommendations

Follow

these

guidelines

to

ensure

general safety

Keep

the

work

area

clear

and

dust-free

during

and

after

installation

Keep

tools

away

from

walk

areas

Do

not

wear

loose

clothing

that

could

get

caught

during

installation

Fasten

your

tie

or

scarf

and

sleeves

Wear

safety

glasses

when

working

under

any

conditions

that

might

be

hazardous

to

your

eyes

Do

not

perform

any

action

that

creates

potential

hazard

to

people

or

makes

the

equipment

unsafe

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

can

weld

to

the

terminal

Preparing

for

Installation

2-1

Safety

Recommendations

Safety

with

Electricity

The

successful

installation

of the

router

should

not

require

removing

or

replacing

network

processor

modules

or

memory

however

if

this

becomes

necessary

the

following

warning

will

appear

at

the

beginning

of

any

procedure

requiring

hardware

configuration

Warning

Before

changing

the

hardware

configuration

of

the

router

such

as

installing

or

removing

network

processor

modules

or

memory

remove

the

router

from

the

MMAC

hub

Failure

to

observe

this

warning

and

act

accordingly

may

increase the

potential

for

shock

hazard

or

electrocution

Before

beginning procedure

that

requires

hardware

configuration

we

strongly

advised

that

you

read

through

the

entire

procedure

After

you

read

the

procedure

if

you

have

any

doubts

about

your

ability

to

perform

any

part

contact

service

representative

for

assistance

Follow

these

guidelines

when

working

on

equipment

powered by

electricity

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

Before

attempting

any

hardware

modifications

to

the

router

remove

the router

from

the

hub

Do

not

work

alone

when

potentially

hazardous

conditions

exist

Never

assume

that

power

has

been

disconnected

from

circuit

Always

check

Carefully

examine

your

work

area

for

possible

hazards

such

as

moist

floors

ungrounded

power

extension

cables

and

missing safety

grounds

If

an

electrical

accident

occurs

proceed

as

follows

Use

caution

do

not

become

victim

yourself

Turn

OFF

power

to

the

system

If

possible

send

another

person

to

get

medical

aid

Otherwise

assess

the condition

of the

victim

and

then

call for

help

Determine

if

the

person

needs

rescue

breathing

or external cardiac

compressions

then

take

appropriate

action

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

handling

ESD-sensitive

components

Ensure

that

the

chassis

is

electrically

connected

to

earth

ground

Wear

an

ESD

wrist

strap ensuring

that

it

makes

good

skin

contact

Connect

the

clip

to

an

unpainted

chassis

frame

surface

to

safely

channel

unwanted

ESD

voltages

to

ground

To

properly

guard

against

ESD

damage

and

shocks

the

wrist

strap

and

cord

must

operate

effectively

Use

an

ohmmeter

to

check

the

ESD

wrist

strap

periodically

to

ensure

that

the

resistor

is

providing

proper

ESDprotection

in

the

range

of

to

10

megaohms

defective

ESD

wrist

strap

can

be

hazard

to

your

equipment

If

no

wrist

strap

is

available

ground

yourself

by

touching

the metal

part

of the chassis

2-2

CRM3

Hardware

Installation

and

Maintenance

General

Site

Requirements

Genera

Site

Requrements

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

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

following precautions

to

help

avoid

equipment

failures

and

reduce

the

likelihood

of

environmentally

caused

shutdowns

If

you

are

currently

experiencing

shutdowns

or

unusually high

errors

with

your

existing

equipment

these

precautions

may

help

you

isolate

the

cause

of

failures

and

prevent

future

problems

Preventive

Site

Configuration

The

following precautions

will

help

you

plan

an

acceptable

operating

environment

for

your

router

and

will

help

to

avoid

environmentally

caused

equipment

failures

Remember

that electrical

equipment

generates

heat

Ambient

room

temperature

may

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

Always

follow

ESD-prevention

procedures

to

avoid

damage

to

equipment

Damage

from

static

discharge

can cause

immediate

oi

intermittent

equipment

failure

If

configured

with

fewer than

two

network

processor

modules

you

must

place

network

processor

module

slot

filler

panel

in

the

open

slot

to

permit

propel

air

flow

The

chassis

is

designed

to

allow

cooling

air

to

flow

within

An

open

access

panel

allows

air

leaks

which

may

in

turn

interrupt

and

redirect

the

flow of

cooling

air

across

internal

components

nstaUaton

CheckUst

The

Installation

Checklist

see

Figure

2-1

lists all

the

procedures

for

initial

hardware

installation

of

new

systems

Make

copy

of

this

checklist

and

note

when

each

procedure

is

completed

Place

copy

of the checklist

for

each

system

in

your

Site

Log

See

the

Site

Log

section

Preparing

for

Installation

2-3

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Cisco CRM3 Hardware Installation And Maintenance

Cisco CRM3 Hardware Installation And Maintenance

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