Cisco Systems 2948G Ge Tx Users Manual Gbook

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Catalyst 2984G, 2948G-GE-TX, and2980G Switch Hardware Installation Guide
Contents
Product Overview
- Switch Description
- Switch Components
Site Planning
Installing the Switch
Configuring the Gigabit Ethernet Ports
- Installing, Removing, and Maintaining GBICs
- Connecting To an SFP Module
Troubleshooting the Installation
Specifications
Repacking aSwitch
Differential Mode Delay
Translated Safety Warnings
Index

Corporate Headquarters

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

http://www.cisco.com

Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 526-4100

Catalyst 2984G, 2948G-GE-TX,

and 2980G Switch Hardware

Installation Guide

October 2003

Customer Order Number: DOC-786286=

Text Part Number: 78-6286-05

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT

NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT

ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR

THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION

PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO

LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: 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.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate

radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television

reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in

part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation.

However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class

A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct

any interference to radio or television communications 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.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE

PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED

OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS 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 OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH

DAMAGES.

CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks

of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet,

ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo,

Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel,

EtherSwitch, Fast Step, GigaStack, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, MGX,

MICA, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, ScriptShare,

SlideCast, SMARTnet, StrataView Plus, Stratm, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO

are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply

a partnership relationship between Cisco and any other company. (0304R)

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

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CONTENTS

Cisco Limited Lifetime Hardware Warranty Terms xi

Preface xv

Audience xv

Organization xv

Related Documentation

Refer to the following documents for additional Catalyst 4500 series information:

•Software Configuration Guide—Catalyst 4500 Series, Catalyst 2948G, and

Catalyst 2980G Switches

•Command Reference—Catalyst 4500 Series, Catalyst 2948G, and Catalyst

2980G Switches

•System Message Guide—Catalyst 4500 Series, Catalyst 2948G, and Catalyst

2980G Switches

Chapter 4 Gigabit Ethernet

Port Configuration Describes the features and configuration of

the Gigabit Ethernet ports.

Chapter 5 Troubleshooting

the Installation Provides troubleshooting guidelines for the

initial hardware installation and suggests

steps to help isolate and resolve problems.

Appendix A Specifications Lists Catalyst 2948G and 2980G switch

specifications.

Appendix B Repacking

a Switch Provides procedures to repack your

Catalyst 2948G or 2980G switch in the event

that you have to return it to the factory.

Appendix C Differential Mode

Delay Describes the nature and causes of

differential mode delay (DMD) and ways to

prevent it.

Appendix D Translated Safety

Warnings Repeats in multiple languages the warnings

in this guide.

Chapter Title Description

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Preface Conventions

Conventions

This document uses the following conventions:

Notes use the following conventions:

Note Means reader take note. Notes contain helpful suggestions or references to

material not covered in the publication.

Convention Description

boldface font Commands and keywords are in boldface.

italic font Arguments for which you supply values are in italics.

[ ] Elements in square brackets are optional.

{ x | y | z } Alternative keywords are grouped in braces and

separated by vertical bars.

[ x | y | z ] Optional alternative keywords are grouped in brackets

and separated by vertical bars.

string A nonquoted set of characters. Do not use quotation

marks around the string or the string will include the

quotation marks.

screen font Terminal sessions and information the system displays

are in screen font.

boldface screen

font Information you must enter is in boldface screen font.

italic screen font Arguments for which you supply values are in italic

screen font.

^ The symbol ^ represents the key labeled Control—for

example, the key combination ^D in a screen display

means hold down the Control key while you press the D

key.

< > Nonprinting characters, such as passwords are in angle

brackets.

Preface

Conventions

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Cautions use the following conventions:

Caution Means reader be careful. In this situation, you might do something that could

result in equipment damage or loss of data.

Warnings use the following conventions:

Warning

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause

bodily injury. Before you work on any equipment, be aware of the hazards

involved with electrical circuitry and be familiar with standard practices for

preventing accidents. Use the statement number provided at the end of each

warning to locate its translation in the translated safety warnings that

accompanied this device.

Statement 1071

SAVE THESE INSTRUCTIONS

Waarschuwing

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die

lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat

werken, dient u zich bewust te zijn van de bij elektrische schakelingen

betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken

om ongelukken te voorkomen. Gebruik het nummer van de verklaring

onderaan de waarschuwing als u een vertaling van de waarschuwing die bij

het apparaat wordt geleverd, wilt raadplegen.

BEWAAR DEZE INSTRUCTIES

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Preface Conventions

Varoitus

TÄRKEITÄ TURVALLISUUSOHJEITA

Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia

vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien

käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin

ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen

mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta

varoitusten lopussa näkyvien lausuntonumeroiden avulla.

SÄILYTÄ NÄMÄ OHJEET

Attention

IMPORTANTES INFORMATIONS DE SÉCURITÉ

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une

situation pouvant entraîner des blessures ou des dommages corporels. Avant

de travailler sur un équipement, soyez conscient des dangers liés aux circuits

électriques et familiarisez-vous avec les procédures couramment utilisées

pour éviter les accidents. Pour prendre connaissance des traductions des

avertissements figurant dans les consignes de sécurité traduites qui

accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la

fin de chaque avertissement.

CONSERVEZ CES INFORMATIONS

Warnung

WICHTIGE SICHERHEITSHINWEISE

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die

zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit

den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur

Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung

angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den

übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät

ausgeliefert wurden.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

Preface

Conventions

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

Avvertenza

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe

causare infortuni alle persone. Prima di intervenire su qualsiasi

apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti

elettrici e conoscere le procedure standard per la prevenzione di incidenti.

Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza

per individuare le traduzioni delle avvertenze riportate in questo documento.

CONSERVARE QUESTE ISTRUZIONI

Advarsel

VIKTIGE SIKKERHETSINSTRUKSJONER

Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade

på person. Før du begynner å arbeide med noe av utstyret, må du være

oppmerksom på farene forbundet med elektriske kretser, og kjenne til

standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver

advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som

fulgte med denne enheten.

TA VARE PÅ DISSE INSTRUKSJONENE

Aviso

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você está em uma situação que poderá

ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer

equipamento, tenha conhecimento dos perigos envolvidos no manuseio de

circuitos elétricos e familiarize-se com as práticas habituais de prevenção de

acidentes. Utilize o número da instrução fornecido ao final de cada aviso para

localizar sua tradução nos avisos de segurança traduzidos que acompanham

este dispositivo.

GUARDE ESTAS INSTRUÇÕES

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Preface Conventions

¡Advertencia!

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Este símbolo de aviso indica peligro. Existe riesgo para su integridad física.

Antes de manipular cualquier equipo, considere los riesgos de la corriente

eléctrica y familiarícese con los procedimientos estándar de prevención de

accidentes. Al final de cada advertencia encontrará el número que le ayudará

a encontrar el texto traducido en el apartado de traducciones que acompaña

a este dispositivo.

GUARDE ESTAS INSTRUCCIONES

Varning!

VIKTIGA SÄKERHETSANVISNINGAR

Denna varningssignal signalerar fara. Du befinner dig i en situation som kan

leda till personskada. Innan du utför arbete på någon utrustning måste du vara

medveten om farorna med elkretsar och känna till vanliga förfaranden för att

förebygga olyckor. Använd det nummer som finns i slutet av varje varning för

att hitta dess översättning i de översatta säkerhetsvarningar som medföljer

denna anordning.

SPARA DESSA ANVISNINGAR

Preface

Conventions

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Preface Obtaining Documentation

Obtaining Documentation

Cisco provides several ways to obtain documentation, technical assistance, and

other technical resources. These sections explain how to obtain technical

information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at

this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco websites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco

Documentation CD-ROM package, which may have shipped with your product.

The Documentation CD-ROM is updated regularly and may be more current than

printed documentation. The CD-ROM package is available as a single unit or

through an annual or quarterly subscription.

Registered Cisco.com users can order a single Documentation CD-ROM (product

number DOC-CONDOCCD=) through the Cisco Ordering tool:

http://www.cisco.com/en/US/partner/ordering/ordering_place_order_ordering_t

ool_launch.html

All users can order annual or quarterly subscriptions through the online

Subscription Store:

http://www.cisco.com/go/subscription

Preface

Obtaining Technical Assistance

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Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

•Registered Cisco.com users (Cisco direct customers) can order Cisco product

documentation from the Networking Products MarketPlace:

http://www.cisco.com/en/US/partner/ordering/index.shtml

•Nonregistered Cisco.com users can order documentation through a local

account representative by calling Cisco Systems Corporate Headquarters

(California, USA.) at 408 526-7208 or, elsewhere in North America, by

calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco

Documentation home page, click Feedback at the top of the page.

You can send your comments in e-mail to bug-doc@cisco.com.

You can submit comments by using the response card (if present) behind the front

cover of your document or by writing to the following address:

Cisco Systems

Attn: Customer Document Ordering

170 West Tasman Drive

San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

For all customers, partners, resellers, and distributors who hold valid Cisco

service contracts, the Cisco Technical Assistance Center (TAC) provides 24-hour,

award-winning technical support services, online and over the phone. Cisco.com

features the Cisco TAC website as an online starting point for technical assistance.

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Preface Obtaining Technical Assistance

Cisco TAC Website

The Cisco TAC website (http://www.cisco.com/tac) provides online documents

and tools for troubleshooting and resolving technical issues with Cisco products

and technologies. The Cisco TAC website is available 24 hours a day, 365 days a

year.

Accessing all the tools on the Cisco TAC website requires a Cisco.com user ID

and password. If you have a valid service contract but do not have a login ID or

password, register at this URL:

http://tools.cisco.com/RPF/register/register.do

Opening a TAC Case

The online TAC Case Open Tool (http://www.cisco.com/tac/caseopen) is the

fastest way to open P3 and P4 cases. (Your network is minimally impaired or you

require product information). After you describe your situation, the TAC Case

Open Tool automatically recommends resources for an immediate solution. If

your issue is not resolved using these recommendations, your case will be

assigned to a Cisco TAC engineer.

For P1 or P2 cases (your production network is down or severely degraded) or if

you do not have Internet access, contact Cisco TAC by telephone. Cisco TAC

engineers are assigned immediately to P1 and P2 cases to help keep your business

operations running smoothly.

To open a case by telephone, use one of the following numbers:

Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)

EMEA: +32 2 704 55 55

USA: 1 800 553-2447

For a complete listing of Cisco TAC contacts, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

TAC Case Priority Definitions

To ensure that all cases are reported in a standard format, Cisco has established

case priority definitions.

Preface

Obtaining Additional Publications and Information

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Priority 1 (P1)—Your network is “down” or there is a critical impact to your

business operations. You and Cisco will commit all necessary resources around

the clock to resolve the situation.

Priority 2 (P2)—Operation of an existing network is severely degraded, or

significant aspects of your business operation are negatively affected by

inadequate performance of Cisco products. You and Cisco will commit full-time

resources during normal business hours to resolve the situation.

Priority 3 (P3)—Operational performance of your network is impaired, but most

business operations remain functional. You and Cisco will commit resources

during normal business hours to restore service to satisfactory levels.

Priority 4 (P4)—You require information or assistance with Cisco product

capabilities, installation, or configuration. There is little or no effect on your

business operations.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is

available from various online and printed sources.

•The Cisco Product Catalog describes the networking products offered by

Cisco Systems, as well as ordering and customer support services. Access the

Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

•Cisco Press publishes a wide range of networking publications. Cisco

suggests these titles for new and experienced users: Internetworking Terms

and Acronyms Dictionary, Internetworking Technology Handbook,

Internetworking Troubleshooting Guide, and the Internetworking Design

Guide. For current Cisco Press titles and other information, go to Cisco Press

online at this URL:

http://www.ciscopress.com

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Preface Obtaining Additional Publications and Information

•Packet magazine is the Cisco quarterly publication that provides the latest

networking trends, technology breakthroughs, and Cisco products and

solutions to help industry professionals get the most from their networking

investment. Included are networking deployment and troubleshooting tips,

configuration examples, customer case studies, tutorials and training,

certification information, and links to numerous in-depth online resources.

You can access Packet magazine at this URL:

http://www.cisco.com/go/packet

•iQ Magazine is the Cisco bimonthly publication that delivers the latest

information about Internet business strategies for executives. You can access

iQ Magazine at this URL:

http://www.cisco.com/go/iqmagazine

•Internet Protocol Journal is a quarterly journal published by Cisco Systems

for engineering professionals involved in designing, developing, and

operating public and private internets and intranets. You can access the

Internet Protocol Journal at this URL:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_

protocol_journal.html

•Training—Cisco offers world-class networking training. Current offerings in

network training are listed at this URL:

http://www.cisco.com/en/US/learning/index.html

Preface

Obtaining Additional Publications and Information

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CHAPTER

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Product Overview

This chapter provides an overview of the features and components of the

Catalyst 2948G, 2948G-GE-TX, and 2980G switches. It contains these sections:

•Switch Description, page 1

•Switch Components, page 7

Note Throughout this guide, Catalyst 2980G switch refers to both the Catalyst 2980G

switch and the Catalyst 2980G-A switch, unless otherwise noted.

Switch Description

The Catalyst 2948G, 2948G-GE-TX, and 2980G switches are designed for

high-performance, high-density wiring-closet applications. Figure 1-1 through

Figure 1-3 show the switches.

Chapter 1 Product Overview

Switch Description

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Figure 1-1 Catalyst 2948G Switch

Figure 1-2 Catalyst 2948G-GE-TX Switch

Figure 1-3 Catalyst 2980G Switch

The Catalyst 2948G, 2948G-GE-TX, and 2980G switches interface with

networking equipment using Ethernet (10BASE-T), Fast Ethernet (100BASE-T),

and Gigabit Ethernet (1000BASE-T) interfaces. Depending on the model, the

switches also support Gigabit Interface Converters (GBICs) or small form-factor

pluggable (SFP) modules.

98431

CONSOLE1000Base - X

10BaseT

STATUS

Catalyst 2948G

98434

STATUS

SLOT 2

SLOT 3

10/100/1000 ETHERENET

171819

202122232425262728293031

171819

202122232425262728293031

33343536 3738394041424344454647

3334PWR

CONSOLE

CATALYST 2986

10MB MGT

RESET

50747

345678910 11 12 13 14 15 16

12345678910111213141516

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Chapter 1 Product Overview Switch Description

The Catalyst 2948G switch has 48 autosensing and autoconfiguring

10/100BASE-T Fast Ethernet fixed ports. The Catalyst 2948G-GE-TX switch has

48 autosensing and autoconfiguring 10/100/1000BASE-T ports. The

Catalyst 2980G switch has 80 autosensing and autoconfiguring 10/100BASE-T

Fast Ethernet fixed ports.

GBIC Module Support

The Catalyst 2948G and 2980G switches each have two Gigabit Ethernet uplink

ports with modular Gigabit Interface Converters (GBICs).

A GBIC is a hot-swappable input/output device that plugs into a Gigabit Ethernet

port module and links the port module with a fiber-optic network. For a detailed

description of Gigabit Ethernet ports, see the “GBIC Features” section on

page 4-2.

For a complete list of supported GBIC modules, see Table 4-1 on page 4-3.

Note The Catalyst 2948G-GE-TX switch does not support GBIC modules.

The Gigabit Ethernet ports can be configured with any combination of GBIC

types.

The Gigabit Ethernet ports on these modules are used primarily for backbone

interconnection of other high-performance switches and routers.

SFP Module Support

The Catalyst 2948G-GE-TX switch has four small form-factor pluggable (SFP)

module slots. The switch uses SFP modules to establish Gigabit connections. The

SFP module slots are located on the front of the switch.

An SFP module is a hot-swappable input/output device that plugs into an SFP

module slot, linking the port module with a fiber-optic network.

For a list of SFP modules supported by the Catalyst 2948G-GE-TX switch, see

Table 4-4 on page 4-12.

Chapter 1 Product Overview

Switch Description

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Note Catalyst 2948G-GE-TX switch only supports 1000 Mbps and full-duplex modes

on SFP modules.

Except for the 1000BASE-T SFP module, all of the SFP modules are used to

establish fiber-optic connections. You use fiber-optic cables with Lucent (LC)

connectors to connect to an SFP module. The SFP modules support 850 to 1550

nanometer nominal wave lengths. These field-replaceable modules provide the

uplink optical interfaces, laser send (TX) and laser receive (RX). For a detailed

description of Gigabit Ethernet ports see the “Connecting To an SFP Module”

section on page 4-12.

Switch Features

Table 1-1 describes the Catalyst 2948G, 2948G-GE-TX, and 2980G switch

features.

Table 1-1 Catalyst 2948G, 2948G-GE-TX, and 2980G Switch Features

Feature Description

Ethernet speeds •Ethernet (10BASE-T) interface to workstations and repeaters

•Fast Ethernet (100BASE-T) interface to workstations, servers,

switches, and routers

Note Autonegotiation of link speed on each 10/100 and 10/100/1000

port allows migration to 100BASE-T or 1000BASE-T from a

10BASE-T or 100BASE-T installed base.

•Gigabit Ethernet (1000BASE-T) copper and Gigabit Ethernet

(1000BASE-X) fiber-optic interface for backbone interconnection of

high-performance switches and routers

Standard management and

support • Layer 2 forwarding with an aggregate forwarding rate of greater than

17.8 million packets per second

•16,000 MAC addresses per system

1-5

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Chapter 1 Product Overview Switch Description

Standard management and

support (continued) •Up to 1,024 VLANs with IEEE 802.1Q VLAN tagging on all ports

and support for VTP1

•Port aggregation using PAgP2 for 100-Mbps and 1-Gbps

EtherChannel

Software management •CLI3 and SNMP interfaces consistent with the Catalyst 4500 series

and 6500 family switches

•Development of new features compatible with the Catalyst 6500

family switches

•Out-of-band management through the RJ-45 10BASE-T console

serial port

•10BASE-T out-of-band management and in-band management

through any switch port with SNMP, Telnet client, and TFTP

Note The Catalyst 2948G-GE-TX and 2980G-A switches have a

10/100BASE-T management port.

•RMON4 with RMON 1

•Standard Layer 2 elements:

–

802.1D Spanning Tree

–

CDP5

–

VTP6 version 2 with pruning extensions

–

CGMP7 client

Table 1-1 Catalyst 2948G, 2948G-GE-TX, and 2980G Switch Features (continued)

Feature Description

Chapter 1 Product Overview

Switch Description

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Port Locations

This section describes the port locations and numbering on the switches.

10/100 and 10/100/1000 Ports

The 10/100 and 10/100/1000 ports are configured in vertical pairs. Each vertical

pair has two Link Status LEDs below it. The LED on the left is for the top port;

the LED on the right is for the bottom port. For example, LED 1 is for the upper

port (port 1) and LED 2 is for the bottom port (port 2).

Embedded management •Full SNMP implementation, including entity-MIB, all relevant

standard MIBs, and all relevant Cisco MIBs

•The first four RMON groups (Ethernet statistics, Alarms, Events, and

History) supported on a per port basis without an optional RMON

processing module

•Redirection of traffic from any port to a “sniff” port. (Any switching

port can be designated as a “sniff” port.)

•Performance management information

Power supplies •120 W AC internal power supply on the Catalyst 2948G switch

•156 W AC internal power supply on the Catalyst 2948G-GE-TX

switch

•175 W AC internal power supply on the Catalyst 2980G switch

1. VTP = VLAN Trunking Protocol

2. PAgP = Port Aggregation Protocol

3. CLI = command-line interface

4. RMON = Remote Monitoring

5. CDP = Cisco Discovery Protocol

6. VTP = Virtual Terminal Protocol

7. CGMP = Cisco Group Management Protocol

Table 1-1 Catalyst 2948G, 2948G-GE-TX, and 2980G Switch Features (continued)

Feature Description

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Catalyst 2948G and 2980G Switch Ports

The Catalyst 2948G switch 10/100BASE-T ports are configured in two rows. The

top row contains odd-numbered ports (1 through 47), and the bottom row contains

even-numbered ports (2 through 48).

The Catalyst 2980G switch 10/100BASE-T ports are configured in four rows. The

top two rows are numbered 1 through 48, with the first row odd-numbered (1

through 47) and the second row even-numbered (2 through 48). The bottom two

rows are numbered 1 through 32, with the first row odd-numbered (1 through 31)

and the second row even-numbered (2 through 32).

Two GBIC ports are at the right of the front panel on the Catalyst 2948G and

Catalyst 2980G switches:

•On the Catalyst 2948G switches, these ports are located at the far right of the

front panel. The upper Gigabit Ethernet port is port 49; the lower is port 50.

The Link Status LEDs for these ports are below port 50.

•On the Catalyst 2980G switches, the GBIC Ethernet ports are located

immediately to the right of ports 31 and 32. The port on the left is port 33; the

port on the right is port 34. The Link Status LEDs for the Gigabit Ethernet

ports are located below each port.

Catalyst 2948G-GE-TX Switch Ports

The Catalyst 2948G-GE-TX 10/100/1000BASE-T Gigabit Ethernet ports are

configured in two rows. The top row contains odd-numbered ports (1 through 47),

and the bottom row contains even-numbered ports (2 through 48).

The SFP module slots are numbered left to right 49 through 52.

Switch Components

This section describes the following Catalyst 2948G and 2980G switch

components:

•Management Ports, page 8

•Front Panel LEDs, page 8

Chapter 1 Product Overview

Switch Components

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•Airflow, page 9

•Power Supplies, page 11

Management Ports

The Catalyst 2948G, 2948G-GE-TX, and 2980G switches have two kinds of

management ports: console serial and Ethernet. The Catalyst 2948G switches

have a 10BASE-T management port. The Catalyst 2948G-GE-TX and 2980G-A

switches have a 10/100BASE-T management port.

Table 1-2 on page 1-9 lists the management options for the switches.

Console Serial Port

An RJ-45 console serial port allows you to perform switch-management functions

using a terminal. See Table A-1 on page A-1 for the console connector pinouts.

10BASE-T and 10/100BASE-T Ports

An RJ-45 10BASE-T port allows you to perform TCP/IP switch-management

functions (Telnet, SNMP, FTP), configure IP addresses with BOOTP, and

download software images.

Note The Catalyst 2948G-GE-TX and 2980G-A switches have a 10/100BASE-T

management port.

This port is for network management only; it is not for switching. Connectivity is

not available between this port and the 10/100BASE-T switching ports.

Front Panel LEDs

The LEDs on the front panels of the Catalyst 2948G, 2948G-GE-TX, and 2980G

switches perform the following functions:

•STATUS LEDs indicate the operating state of the switches.

•Link Status LEDs provide management and indicate switching port status.

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Chapter 1 Product Overview Switch Components

•PSI LED indicates the internal power supply status on the Catalyst 2948G

switch.

•PWR LED indicates the internal power supply status on the Catalyst 2980G

switch.

•RPS LED provides the external redundant power supply status.

Table 1-2 describes the LEDs.

Airflow

Note For environmental specifications, see Chapter 2, “Site Planning.”

On the Catalyst 2948G and 2980G switches, the system fan assembly provides

cooling air for the internal chassis components. The fans exhaust warm air from

one end and draw in cool air at the other end.

Table 1-2 Front Panel LEDs

LED Color/Statue Description

STATUS Indicates the results of a series of self-test diagnostics.

Green

Red

Amber

Off

All tests pass.

A test other than an individual port test fails.

System boot or diagnostic tests in progress.

Switch is disabled.

Link Status Indicates the link status of a port.

Green

Amber

Flashing

Off

Port is operational.

Port is disabled by user.

Power-on self-test indicates faulty port.

No signal detected, or link configuration failure.

PSI, PWR, and RPS Indicates power supply operation or failure.

Green

Amber Power supply is operational.

Power supply has failed or is in Standby mode.

Chapter 1 Product Overview

Switch Components

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If an individual fan fails, the other fans continue to run. Sensors monitor the

internal air temperatures. If the air temperature exceeds a tolerable threshold, the

environmental monitor displays warning messages.

On the Catalyst 2948G-GE-TX, a blower system draws cool air in from the front

and sides of the switch and exhausts air out the back.

Figure 1-4 shows the direction of airflow through the Catalyst 2948G switch.

Figure 1-5 shows the direction of airflow through the Catalyst 2948G-GE-TX

switch.

Figure 1-6 shows the direction of airflow through the Catalyst 2980G switch.

Figure 1-4 Catalyst 2948G Airflow

Figure 1-5 Catalyst 2948G-GE-TX Airflow

98432

CONSOLE1000Base - X

10BaseT

STATUS

Catalyst 2948G

98720

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Chapter 1 Product Overview Switch Components

Figure 1-6 Catalyst 2980G Airflow

Power Supplies

There is no power switch on the switches. AC power is present in the power

supply when the power cord is plugged in.

The environmental monitoring and reporting functions allow you to maintain

normal system operation by correcting adverse environmental conditions before

loss of operation.

Each power supply monitors its own temperature and output voltages. If the power

supply becomes excessively hot, it shuts down to prevent damage. The switches

monitor the operating condition of the power supply and report the status using

switch software.

The switches have the following power supplies:

•120 W AC internal power supply—Catalyst 2948G switch

•156 W AC internal power supply—Catalyst 2948G-GE-TX switch

•175 W AC internal power supply—Catalyst 2980G switch

•156 W AC internal power supply—Catalyst 2980G-A switch

Note For complete power specifications for the Catalyst 2948G, 2948G-GE-TX,

and 2980G switches, see Appendix A, “Specifications.”

These switches also be used with an optional Cisco Redundant Power System

(RPS).

32064

STATUS

SLOT 2

SLOT 3

10/100/1000 ETHERENET

171819

202122232425262728293031

171819

202122232425262728293031

33343536 3738394041424344454647

3334PWR

CONSOLE

CATALYST 2986

10MB MGT

RESET

345678910 11 12 13 14 15 16

12345678910111213141516

Chapter 1 Product Overview

Switch Components

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•The Catalyst 2948G switch uses the Cisco RPS 600 AC power supply

(PWR600-AC-RPS-CAB).

The Cisco RPS 600 supports four external devices that use up to 150 W DC

each. Use a one-to-one cable (one connector at each cable end) to connect

four external devices to the four DC output power modules.

The power source is partially redundant. There are two AC input power

modules for the Cisco RPS and one DC output power module for each

external device. The AC input to the Cisco RPS is fully redundant, but the DC

output to the external devices is not.

Warning

Attach only the Cisco RPS (model PWR600-AC-RPS) to the RPS receptacle.

Statement 112

•The Catalyst 2948G-GE-TX switch uses the Cisco RPS 675 (model

PWR675-AC-RPS-N1).

The RPS 675 supports six external network devices and provides DC power

to one failed device at a time. It automatically senses when the internal power

supply of a connected device fails and provides power to that device, which

prevents loss of network traffic.

Warning

Attach only the Cisco RPS (model PWR675-AC-RPS-N1=) to the RPS receptacle.

Statement 100C

•The Catalyst 2980G-A switch uses the Cisco RPS 300

(PWR300-AC-RPS-N1).

The RPS 300 supports six external network devices and provides power to

one failed device at a time. It automatically senses when the power supply of

a connected device fails and provides the necessary power to the failed device

to prevent loss of network traffic. When the internal power supply of the

device has been brought up or replaced, the RPS automatically stops

powering the device.

Warning

Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle.

Statement 100B

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Chapter 1 Product Overview Switch Components

A Cisco RPS can only power one switch at a time. If more than one switch fails

at the same time, any subsequent switch is not supported by the RPS until the first

switch failure is resolved. For more information, refer to the documentation that

was included with your RPS.

On the Catalyst 2948G switch, you must use a Y cable to connect the switch to

two RPS 600 power supplies. Each RPS 600 has status LEDs (PSI and RPS).

On the Catalyst 2980G-A switch, each RPS 300 power supply has an individual

power cord and has status LEDs (PSI, PWR, and RPS).

The RPS uses redundant power supplies. If one of the power supplies in the RPS

fails, the RPS will automatically switch over to the other power supply without

forcing the switch to reboot.

Note On the Catalyst 2948G-GE-TX and 2948G switches, only one power source can

supply power to the switch at any one time. When you are using an RPS, unplug

the local power cord for the switch. If you are using the local power supply, the

RPS can be connected but must not be powered on. The switches can be powered

by both the internal power supply and the RPS at the same time.

Chapter 1 Product Overview

Switch Components

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CHAPTER

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Site Planning

Warning

Before you install, operate, or service the system, read the Site Preparation and

Safety Guide. This guide contains important safety information you should know

before working with the system.

Statement 200

Warning

Only trained and qualified personnel should be allowed to install, replace, or

service this equipment.

Statement 1030

This chapter describes how to prepare your site for the installation of your switch

and contains these sections:

•Site Power Requirements and Heat Dissipation, page 2

•System Ground Connection Guidelines (Catalyst 2948G and 2980G Switches

Only), page 3

•Site-Planning Checklist, page 7

Note See the “Site-Planning Checklist” section on page 7 to help ensure that you

complete all site-planning activities before you install the switch.

Chapter 2 Site Planning

Site Power Requirements and Heat Dissipation

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Site Power Requirements and Heat Dissipation

Note Catalyst 2948G, 2948G-GE-TX, and 2980G switches have internal power

supplies. All of the switches support Cisco Redundant Power System (RPS) for

redundant operation.

This section provides site power requirements and heat dissipation specifications

for the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. You should verify

site power before you install a switch.

Power requirements can vary for each Catalyst switch. Knowing the power

requirements can be useful for planning the power distribution system needed to

support the switches. Heat specifications are used for determining the

air-conditioning requirements for an installation.

Note Refer to the Site Preparation and Safety Guide for site power requirements,

preinstallation requirements, and EMI recommendations.

Table 2-1 describes the power requirements and heat dissipation specifications for

the Catalyst 2948G, 2948G-GE-TX, and 2980G switches.

Table 2-1 Power Requirements and Heat Dissipation Specifications

Model Number/

Module Type

Power

Supply

Output

(Watts)

AC Input

Power

(Watts) Heat Diss

(BTU/Hr) AC Input Current (Amps)

Catalyst 2948G switch 120 200 645 90 VAC: 2.0

120 VAC: 1.6

180 VAC: 1.0

240 VAC: 0.9

Catalyst 2948G-GE-TX switch 156 130 445 100 VAC: 1.5

240 VAC: 0.8

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Chapter 2 Site Planning System Ground Connection Guidelines (Catalyst 2948G and 2980G Switches Only)

System Ground Connection Guidelines

(Catalyst 2948G and 2980G Switches Only)

Two system (earth) grounding holes are provided in an enclosure near the power

supplies.

Note These guidelines do not apply to the Catalyst 2948G-GE-TX switches.

See Figure 2-1 for the location of the grounding holes on the Catalyst 2948G

switches and Figure 2-2 for the location on the Catalyst 2980G switches.

Catalyst 2980G switch 175 300 950 90 VAC: 3.0

120 VAC: 2.4

180 VAC: 1.6

240 VAC: 1.0

Catalyst 2980G-A switch 156 208 670 90 VAC: 2.3

120 VAC: 1.7

180 VAC: 1.1

240 VAC: 0.9

Table 2-1 Power Requirements and Heat Dissipation Specifications (continued)

Model Number/

Module Type

Power

Supply

Output

(Watts)

AC Input

Power

(Watts) Heat Diss

(BTU/Hr) AC Input Current (Amps)

Chapter 2 Site Planning

System Ground Connection Guidelines (Catalyst 2948G and 2980G Switches Only)

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Figure 2-1 Grounding Holes on the Catalyst 2948G Switch

Figure 2-2 Grounding Holes on the Catalyst 2980G Switch

To make an adequate grounding connection, you need these components and

tools:

•Grounding lug—The grounding lug must have two M4 screw holes. See

Figure 2-1 for the location of the M4 screw holes on the Catalyst 2948G

switch and Figure 2-2 for the Catalyst 2980G switch.

The grounding lugs are not available from Cisco Systems; any

electrical-connector vendor can provide this lug.

•Two M4 (metric) hex-head screws with locking washers—These screws are

not available from Cisco Systems; they are available from any commercial

hardware vendor.

•One grounding wire (6 AWG recommended)—The length of the grounding

wires depends on the location of your switch within the site and its proximity

to proper grounding facilities. The grounding wire is not available from Cisco

Systems; it is available from any commercial cable vendor.

M4 screw holes (2)

33110

M4 screw holes (2)

33109

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Chapter 2 Site Planning System Ground Connection Guidelines (Catalyst 2948G and 2980G Switches Only)

•Number 2 Phillips head screwdriver.

•Crimping tool—This must be large enough to accommodate the girth of the

grounding lug when you crimp the grounding cable into the lug.

•Wire-stripping tool.

Connecting the Switch to Earth Ground

This procedure describes how to connect the Catalyst 2948G, 2948G-GE-TX,

and 2980G switches to earth ground. We strongly recommend that you complete

this procedure before connecting system power or turning on your switch.

To attach the grounding lug and cable to the grounding pad on the Catalyst 2948G,

2948G-GE-TX, and 2980G switches, follow these steps:

Step 1 Use a wire-stripping tool to remove approximately 0.75 inches (19 mm) of the

covering from the end of the grounding wire.

Step 2 Insert the stripped end of the grounding wire into the open end of the grounding

lug.

Step 3 Use the crimping tool to secure the grounding wire in place in the grounding lug.

Step 4 Locate the grounding pad on the switch.

See Figure 2-3 for the location of the grounding pad on the Catalyst 2948G switch

and Figure 2-4 for the Catalyst 2980G switch.

Chapter 2 Site Planning

System Ground Connection Guidelines (Catalyst 2948G and 2980G Switches Only)

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Figure 2-3 Connecting System Ground on the Catalyst 2948G Switch

Figure 2-4 Connecting System Ground on the Catalyst 2980G Switch

Step 5 Remove the label that covers the grounding pad.

Step 6 Place the grounding lug against the grounding pad on the rear panel of the switch.

Step 7 Install locking washers; tighten them to secure the grounding lug to the grounding

pad.

Step 8 Insert two screws through the holes in the grounding lug and the grounding pad.

Ensure that the grounding lug and the attached wire will not interfere with other

switch hardware or rack equipment.

33112

Grounding

pad

Grounding lug

Wire

Screws

Grounding

pad

Grounding lug

Wire

Screws

33111

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Chapter 2 Site Planning Site-Planning Checklist

Step 9 Prepare the other end of the grounding wire and connect it to an appropriate

grounding point at your site to ensure adequate earth ground for the switch.

Site-Planning Checklist

Table 2-2 lists the site-planning activities that you should complete before you

install the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. Completing

each activity helps ensure a successful switch installation.

Table 2-2 Site-Planning Checklist

Task No. Planning Activity Verified By Time Date

1 Space evaluation:

Space and layout

Floor covering

Impact and vibration

Lighting

Maintenance access

2 Environmental evaluation:

Ambient temperature

Humidity

Altitude

Atmospheric contamination

Airflow

3 Power evaluation:

Input power type

Proximity of receptacle to the equipment

Dedicated (separate) circuits for redundant power supplies

UPS for power failures

4 Grounding evaluation:

Circuit breaker size

Chapter 2 Site Planning

Site-Planning Checklist

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5 Cable and interface equipment evaluation:

Cable type

Connector type

Cable distance limitations

Interface equipment (transceivers)

6EMI evaluation:

Distance limitations for signaling

Site wiring

RFI levels

Table 2-2 Site-Planning Checklist (continued)

Task No. Planning Activity Verified By Time Date

CHAPTER

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Installing the Switch

Warning

Before you install, operate, or service the system, read the Site Preparation and

Safety Guide. This guide contains important safety information you should know

before working with the system.

Statement 200

Warning

Only trained and qualified personnel should be allowed to install, replace, or

service this equipment.

Statement 1030

This chapter describes how to install the Catalyst 2948G, 2948G-GE-TX,

and 2980G switches. For first-time installations, perform the procedures in these

sections in the order listed:

•Preparing for Installation, page 2

•Installing the Catalyst 2948G and 2980G Switches, page 6

•Installing the Catalyst 2948G-GE-TX Switch, page 9

•Connecting Power to the Switches, page 19

•Connecting a Terminal to the Console Serial and Ethernet Management Ports,

page 22

Note Before starting the installation procedures in this chapter, complete the

site-planning checklist in Chapter 2, “Site Planning.”

Chapter 3 Installing the Switch

Preparing for Installation

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Preparing for Installation

This section provides information about these topics:

•EMC Regulatory Statements, page 2

•Checking the Shipping Container, page 4

EMC Regulatory Statements

This section includes specific regulatory statements about the switches.

U.S.A.

U.S. regulatory information for this product is in the front matter of this manual.

Taiwan

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.

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Chapter 3 Installing the Switch Preparing for Installation

VCCI Class A Notice for Japan

Korea

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.

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.

Chapter 3 Installing the Switch

Preparing for Installation

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Class A Notice for Hungary

Checking the Shipping Container

Do not discard the packing carton and other packing materials after you unpack

the switch. Flatten the packing carton and store it. You will need the packing

materials if you need to move or ship the switch in the future. Repacking

instructions are provided in Appendix B, “Repacking a Switch.”

Check the contents of the accessory kit against the accessories checklist and the

packing slip. Verify that you received all listed equipment.

Catalyst 2948G and 2980G Switches

The Catalyst 2948G and 2980G switches are shipped with these items:

•This hardware guide

•AC power cord

•RJ-45 to DB-9 cable

•DB-9 to RJ-45 cable

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.

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Chapter 3 Installing the Switch Preparing for Installation

•ESD wrist strap

•Mounting kit

Catalyst 2948G-GE-TX Switches

The Catalyst 2948G-GE-TX switch is shipped with these items:

•This hardware guide

•About the Catalyst 2948G Documentation flyer

•AC power cord

•One RJ-45-to-DB-9 adapter cable (78-3383-XX)

•Mounting kit containing:

–

Four rubber feet for mounting the switch on a table (51-0089)

–

Two 19-inch rack-mounting brackets (700-08209-XX)

–

Four Phillips machine screws for attaching the brackets to a rack

(48-0655-XX)

–

One cable guide (700-05613-XX)

–

One black Phillips machine screw for attaching the cable guide to one of

the mounting brackets (48-0654-XX)

–

One Redundant Power System (RPS) connector cover for wall mounting

(700-16465-XX)

–

Two Phillips pan-head screws for attaching the RPS cover (48-0482-XX)

–

Four Phillips truss-head screws for attaching wall-mounting brackets

(48-0656-XX)

–

Four Phillips pan-head screws for attaching the switch to a rack

(48-0523-XX)

Chapter 3 Installing the Switch

Installing the Catalyst 2948G and 2980G Switches

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Installing the Catalyst 2948G and 2980G Switches

A standard rack-mount kit is included for mounting the switch in a

standard 19-inch (48.3 cm) equipment rack with two unobstructed outer posts.

This kit is not suitable for racks with obstructions (such as a power strip) that

could impair access to the switch.

Required Installation Tools

You will need the following tools and equipment to install the switch chassis in a

rack:

•Rack-mount kit

•Tape measure and level

•Number 1 Phillips, number 2 Phillips, or a 3/16-inch flat-blade screwdriver

•Antistatic mat or antistatic foam

•Your own electrostatic discharge (ESD) grounding strap or the disposable

ESD strap included with the switch

Note For more information about ESD, refer to the Site Preparation and Safety Guide.

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you

must take special precautions to ensure that the system remains stable. The

following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the

top with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting

or servicing the unit in the rack.

Statement 1006

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Chapter 3 Installing the Switch Installing the Catalyst 2948G and 2980G Switches

Rack-Mounting the Catalyst 2948G and 2980G Switches

To install Catalyst 2940G and 2980G switches in a 19-inch rack, follow these

steps:

Step 1 Prepare for installation as follows:

a. Place the chassis on the floor or on a sturdy table, as close as possible to the

rack. Leave enough clearance to allow yourself to move around the chassis.

b. Use the tape measure to measure the depth of the rack. Measure from the

outside of the front-mounting posts to the outside of the rear-mounting strip.

The depth must be at least 19.25 inches (48.9 cm) and not greater than

32 inches (81.3 cm).

c. Measure the space between the inner edges of the left front- and right front-

mounting posts to ensure that it is 17.75 inches (45.09 cm) wide. (The chassis

is 17.5 inches [44 cm] wide and must fit between the mounting posts. See

Figure 3-2.)

d. Open the rack-mount kit and refer to the component checklist in Table 3-1 to

verify that all parts are included.

Note Some equipment racks have a power strip along the length of one of the rear posts.

If the rack has this feature, consider the position of the strip when planning

fastener points. Before installing the L brackets on the chassis, determine whether

to install the chassis from the front or the rear of the rack.

Step 2 Attach the left and right L brackets using the four M4 Phillips pan-head screws

provided in the rack-mount kit (see Figure 3-1).

Table 3-1 Rack-Mount Kit Checklist

Part Description Quantity

L brackets 2

M4 Phillips pan-head screws 4

12-24 x 3/4-inch Phillips binder-head screws 6

Chapter 3 Installing the Switch

Installing the Catalyst 2948G and 2980G Switches

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The L brackets connect the switch chassis to the rack. You can mount the

L brackets to the front- or rear-mounting holes of the chassis, depending on which

end is in the front of the rack.

Note The Catalyst 2948G switch is shown in the rack-mounting illustrations.

The rack-mounting procedure for the Catalyst 2980G switch is the same.

Figure 3-1 Attaching the L Brackets

Step 3 Figure 3-2 shows how to attach the front of the switch to the rack. You can also

attach the rear of the switch to the rack, depending on the configuration of your

rack.

Install the chassis in the rack as follows:

a. Position the switch chassis in the rack (see Figure 3-2):

•If the chassis front panel is to be in the front of the rack, insert the rear

of the chassis between the mounting posts.

•If the rear of the chassis is to be in the front of the rack, insert the front

of the chassis between the mounting posts.

b. Align the mounting holes in the L bracket with the mounting holes in the

equipment rack.

c. Secure the chassis using six 12-24 x 3/4-inch screws (three per side) through

the elongated holes in the L bracket and into the threaded holes in the

mounting post.

d. Use the tape measure and level to ensure that the chassis is installed straight

and level.

98435

CONSOLE1000Base - X

10BaseT

STATUS

Catalyst 2948G

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Chapter 3 Installing the Switch Installing the Catalyst 2948G-GE-TX Switch

Figure 3-2 Installing the Switch in the Rack

Installing the Catalyst 2948G-GE-TX Switch

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you

must take special precautions to ensure that the system remains stable. The

following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the

top with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting

or servicing the unit in the rack.

Statement 1006

98436

CONSOLE1000Base - X

10BaseT

STATUS

Catalyst 2948G

17.75 inches (45.09 cm)

Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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To install a Catalyst 2948G-GE-TX switch, follow the steps described in these

procedures:

•Rack-Mounting the Catalyst 2948G-GE-TX Switch, page 10

•Wall-Mounting the Catalyst 2948G-GE-TX Switch, page 16

•Mounting the Catalyst 2948G-GE-TX Switch on a Table or Shelf, page 19

Rack-Mounting the Catalyst 2948G-GE-TX Switch

To install a Catalyst 2948G-GE-TX switch in a 19-inch rack (24-inch racks

require optional mounting hardware), follow the instructions described in these

procedures:

•Removing Screws from the Switch, page 10

•Attaching Brackets to the Switch, page 11

•Mounting the Switch in a Rack, page 14

•Attaching the Cable Guide, page 15

•Attaching the Brackets to the Switch for Wall-Mounting, page 16

•Attaching the RPS Connector Cover, page 17

•Mounting the Switch on a Wall, page 17

•Mounting the Catalyst 2948G-GE-TX Switch on a Table or Shelf, page 19

Note Installing the switch in a 24-inch rack requires an optional bracket kit not included

with the switch. You can order a kit containing the 24-inch rack-mounting

brackets and hardware (order part number RCKMNT-1RU=) from Cisco.

Removing Screws from the Switch

If you plan to install the switch in a rack, you must first remove screws in the

switch chassis so that mounting brackets can be attached. Figure 3-3 shows how

to remove the chassis screws from the switch.

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Chapter 3 Installing the Switch Installing the Catalyst 2948G-GE-TX Switch

Figure 3-3 Removing Screws from the Catalyst 2948G-GE-TX Switch

Attaching Brackets to the Switch

The bracket orientation and the brackets you use depend on whether you are

attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use the

brackets that are included in the mounting kit.

Note Installing the switch in a 24-inch rack requires an optional bracket kit not included

with the switch. You can order a kit containing the 24-inch rack-mounting

brackets and hardware (order part number RCKMNT-1RU=) from Cisco.

Figure 3-4 through Figure 3-9 show how to attach each type of bracket to one side

of the switch. Follow the same steps to attach the second bracket to the opposite

side of the switch.

98659

Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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Figure 3-4 Attaching Brackets for 19-Inch Racks, Front Panel Forward

Figure 3-5 Attaching Brackets for 19-Inch Racks, Rear Panel Forward

1Phillips flat-head screws

98660

1Phillips flat-head screws

98657

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Chapter 3 Installing the Switch Installing the Catalyst 2948G-GE-TX Switch

Figure 3-6 Attaching Brackets for 24-Inch Racks, Front Panel Forward

Figure 3-7 Attaching Brackets for 24-Inch Racks, Rear Panel Forward

1Phillips flat-head screws

98661

1Phillips flat-head screws

98662

Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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Figure 3-8 Attaching Brackets for 19-Inch Telco Racks

Figure 3-9 Attaching Brackets for 24-Inch Telco Racks

Mounting the Switch in a Rack

After the brackets are attached to the switch, use the four supplied number-12

Phillips machine screws to securely attach the brackets to the rack, as shown in

Figure 3-10.

1Phillips flat-head screws

98663

1Phillips flat-head screws

98664

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Chapter 3 Installing the Switch Installing the Catalyst 2948G-GE-TX Switch

Figure 3-10 Mounting the Catalyst 2948G-GE-TX Switch In a Rack

Attaching the Cable Guide

We recommend attaching the cable guide to the left or right bracket to prevent the

cables from obscuring the front panel of the switch and the other devices installed

in the rack. Use the supplied black screw, as shown in Figure 3-11, to attach the

cable guide to the left or right bracket.

Figure 3-11 Attaching the Cable Guide on the Catalyst 2948G-GE-TX Switch

Note The Catalyst 2948G-GE-TX switch ships with a special cable guide, as shown in

Figure 3-11. This cable guide secures up to 48 cables. Use the supplied black

screw to mount it on the left or right bracket.

1Phillips machine screws

98665

1Cable guide screw

98666

Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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Wall-Mounting the Catalyst 2948G-GE-TX Switch

To install the Catalyst 2948G-GE-TX switch on a wall, follow the instructions in

these procedures:

•Attaching the Brackets to the Switch for Wall-Mounting, page 16

•Attaching the RPS Connector Cover, page 17

•Mounting the Switch on a Wall, page 17

Attaching the Brackets to the Switch for Wall-Mounting

Figure 3-12 shows how to attach a 19-inch bracket to one side of the switch.

Follow the same steps to attach the second bracket to the opposite side of the

switch.

Figure 3-12 Attaching the 19-Inch Brackets for Wall-Mounting

1Phillips truss-head screws

98667

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Chapter 3 Installing the Switch Installing the Catalyst 2948G-GE-TX Switch

Attaching the RPS Connector Cover

If you are not using a Cisco RPS with your switch, use the two Phillips pan-head

screws to attach the RPS connector cover to the back of the switch before you

mount it, as shown in Figure 3-13.

Warning

If an RPS is not connected to the switch, install an RPS connector cover on the

back of the switch.

Statement 265

Figure 3-13 Attaching the RPS Connector Cover on the Catalyst 2948G-GE-TX

Switch

Mounting the Switch on a Wall

For the best support of the switch and cables, make sure the switch is attached

securely to wall studs or to a firmly attached plywood mounting backboard.

Mount the switch with the front panel facing up, as shown in Figure 3-14.

1Phillips pan-head screws 3RPS connector

2RPS connector cover

1 2

RATING

100-200V ~

1.6A-0>9A, 50-60 HZ

DC INPUTS FOR REMOTE

POWER SUPPLY

SPECIFIED IN MANUAL

+12v @8.5a

98668

Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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Warning

To comply with safety regulations, mount the switches on a wall with the front

panel facing up.

Statement 266

Figure 3-14 Mounting the Switch on a Wall

1User-supplied screws

98669

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Chapter 3 Installing the Switch Connecting Power to the Switches

Mounting the Catalyst 2948G-GE-TX Switch on a Table or Shelf

To install the switch on a table or shelf, follow these steps:

Step 1 Locate the adhesive strip with the rubber feet in the mounting-kit envelope.

Step 2 Attach the four rubber feet to the recessed areas on the bottom of the unit.

Step 3 Place the switch on the table or shelf near an AC power source.

Connecting Power to the Switches

To connect power to Catalyst 2948G, 2948G-GE-TX, and 2980G switches, follow

these steps:

Step 1 Before you connect the power supply to a power source, ensure that all site power

and grounding requirements described in “Site Planning” section on page 2-1

have been met.

Step 2 Plug the power cord into the chassis.

Step 3 Connect the other end of the power cord to an AC-power input source.

Step 4 Verify power supply operation by checking the front panel power supply LEDs:

•When the power supply is operational, the LED is green.

•When the power supply has failed, the LED is amber.

From the system console, enter the show system command to display the power

supply and system status. For more information on commands, refer to the

command reference for your switch.

Chapter 3 Installing the Switch

Connecting to 10/100 and 10/100/1000 Ports

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If the LEDs or the show system command indicate a power problem or other

system problem, see Appendix D, “Translated Safety Warnings” for more

information.

Connecting to 10/100 and 10/100/1000 Ports

The 10/100 ports on the Catalyst 2948G and 2980G switches configure

themselves to operate at the speed and duplex settings of attached devices. They

operate at 10 or 100 Mbps in half- or full-duplex mode. If the attached devices do

not support autonegotiation, the speed should resolve correctly. You can also

explicitly set the speed and duplex parameters.

The 10/100/1000 ports on the Catalyst 2948G-GE-TX switches configure

themselves to operate at the speed setting of attached devices. These ports operate

at 10, 100, or 1000 Mbps in full-duplex mode. If the attached devices do not

support autonegotiation, you can set the speed.

Connecting devices that do not autonegotiate or devices with manually set speed

and duplex parameters can reduce performance or result in link failures between

the devices. To maximize performance, choose one of these methods for

configuring the ports:

•Allow the ports to autonegotiate both speed and duplex for 10/100 ports and

only speed for 10/100/1000 ports.

•Set the speed and duplex parameters on both ends of the connection.

Caution To comply with the intrabuilding lightning surge requirements, intrabuilding

wiring must be shielded, and the shield for the wiring must be grounded at both

ends.

Caution To prevent electrostatic-discharge (ESD) damage, follow your normal board and

component handling procedures.

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Chapter 3 Installing the Switch Connecting to 10/100 and 10/100/1000 Ports

To connect the switch to 10BASE-T, 100BASE-TX, or 1000BASE-T devices,

follow these steps:

Step 1 When connecting to servers, workstations, and routers, insert a twisted-pair

straight-through cable in a front-panel RJ-45 connector, as shown in Figure 3-15.

When connecting to switches or repeaters, insert a twisted-pair crossover cable.

(See the Appendix A, “Specifications,” for cable-pinout descriptions.)

Note When connecting to 1000BASE-T devices, be sure to use a four twisted-pair,

Category 5 cable.

Figure 3-15 Connecting to a 10/100 or 10/100/1000 Port

Step 2 Insert the other cable end in an RJ-45 connector on the target device.

STATUS

Catalyst 2948G

98654

Chapter 3 Installing the Switch

Connecting a Terminal to the Console Serial and Ethernet Management Ports

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Step 3 Observe the port STATUS LED:

•The LED turns amber while Spanning Tree Protocol (STP) discovers the

network topology and searches for loops. This process takes about 30

seconds.

•The LED turns green when the switch and the target device have an

established link.

The LED does not light when the target device is not turned on, a cable problem

exists, or a problem exists with the adapter installed in the target device.

If the STATUS LED does not turn green or does not light at all, see

“Troubleshooting the Installation” section on page 5-1 for solutions to cabling

problems.

Step 4 Reconfigure and restart the target device if necessary.

Step 5 Repeat Steps 1 through 4 to connect each port.

Connecting a Terminal to the Console Serial and

Ethernet Management Ports

The console serial and Ethernet management ports are located on the front panel

of the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. These ports use an

RJ-45 media-dependent interface crossed-over (MDIX) connector, as shown in

Figure 3-16. For information about port pinouts, see Appendix A,

“Specifications.”

The Catalyst 2948G switches have a 10BASE-T management port. The

Catalyst 2948G-GE-TX and 2980G-A switches have a 10/100BASE-T

management port.

Note The MDIX Ethernet ports are crossed over internally. For an MDI-to-MDI or

MDIX-to-MDIX connection, use a crossover cable. For an MDI-to-MDIX

connection, use a straight-through cable, which allows the Tx pins to connect with

the Rx pins.

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Chapter 3 Installing the Switch Verifying Switch Operation

Figure 3-16 Ethernet Cable with RJ-45 Connector

Verifying Switch Operation

After you have connected all the interfaces, check all connections, and then

perform the following steps to power on the system to verify that it is operational:

Step 1 Before powering on the system, make sure the connector is installed securely in a

grounded outlet at the power-source end of the power cord and that the source

power is within the range labeled on the back of the switch. When two power

supplies are present, make sure that the second cord is connected to a separate line

from the first, if possible.

Step 2 Check the console terminal and make sure it is powered on.

Step 3 Connect the power cords to the switch.

Step 4 Verify that the PSI or PWR LEDs on the power supply front panel is green.

Step 5 Listen for the system fans to ensure that they are operational.

Step 6 While the system initializes, check that the STATUS LED on the supervisor

engine is amber until the boot is complete.

Note Many of the interface LEDs do not illuminate until you configure the

interfaces.

When the system boot is complete (it takes a few seconds), the supervisor engine

begins to initialize the interfaces. During this initialization, the interface LEDs

flash on and off. When initialization is complete, the console screen displays a

script and system banner.

98459

Chapter 3 Installing the Switch

Verifying Switch Operation

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Note When interface LEDs are on, the interface ports may not be functional or enabled.

Although the LEDs for many interface types might turn on at system startup, they

do not indicate an accurate status until the interface is configured.

Note If the system does not complete this verification process, see Chapter 5,

“Troubleshooting the Installation.”

CHAPTER

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Configuring the Gigabit Ethernet Ports

Warning

Before you install, operate, or service the system, read the Site Preparation and

Safety Guide. This guide contains important safety information you should know

before working with the system.

Statement 200

Warning

Only trained and qualified personnel should be allowed to install, replace, or

service this equipment.

Statement 1030

This chapter describes how to configure the Gigabit Ethernet ports on the Catalyst

2948G and 2980G switches and how to configure the small form-factor-pluggable

(SFP) module slot on the Catalyst 2948G-GE-TX switches. The chapter contains

these sections:

•Installing, Removing, and Maintaining GBICs, page 4-2

•Connecting To an SFP Module, page 4-12

The Gigabit Ethernet ports can be configured with any combination of GBICs.

The Gigabit Ethernet ports on these modules are used primarily for backbone

interconnection of other high-performance switches and routers.

Chapter 4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and Maintaining GBICs

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Installing, Removing, and Maintaining GBICs

The following sections describe Gigabit Interface Converters (GBICs) and how to

install, remove, and maintain them:

•GBIC Features, page 4-2

•Port Cabling Specifications, page 4-4

•GBIC Optical Power Characteristics, page 4-5

•GBIC Cabling Restrictions, page 4-5

•Installing GBICs, page 4-6

•Removing GBICs, page 4-9

•GBIC Maintenance Guidelines, page 4-10

•Patch Cord, page 4-10

GBIC Features

Warning

Because invisible laser radiation may be emitted from the aperture of the port

when no cable is connected, avoid exposure to laser radiation and do not stare

into open apertures.

Statement 70

GBICs (see Figure 4-1) are hot-swappable input/output devices that plug into a

Gigabit Ethernet switching module, linking the module with a fiber-optic

network. The GBICs use SC-type connectors and plug into connectors on the

module. You can install any combination of GBICs in the Gigabit Ethernet

switching module.

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Chapter 4 Configuring the Gigabit Ethernet Ports Installing, Removing, and Maintaining GBICs

Figure 4-1 GBIC Module

Table 4-1 lists the GBIC modules that are supported by the Catalyst 2948G and

2980G switches.

Note Cisco 1000BASE-LX/LH interfaces fully comply with the IEEE 802.3z

1000BASE-LX standard. However, their higher optical quality allows them to

reach 10 kilometers over single-mode fiber (SMF) versus the 5 kilometers

specified in the standard.

Other GBIC media types may be supported as additional technology becomes

available.

11825

Receiver Transmitter

Table 4-1 Supported GBIC modules

GBIC Type Model Number

Fiber-optic 1000BASE-SX WS-G5484=

Fiber-optic 1000BASE-LX/LH WS-G5486=

Fiber-optic 1000BASE-ZX WS-G5487=

Copper 1000BASE-TX GBIC WS-G5483=

Coarse Wave Division Multiplexing (CWDM)

fiber-optic 1000BASE-X GBIC CWDM-GBIC-1470=

CWDM-GBIC-1490=

CWDM-GBIC-1510=

CWDM-GBIC-1530=

CWDM-GBIC-1550=

CWDM-GBIC-1570=

CWDM-GBIC-1590=

CWDM-GBIC-1610=

Chapter 4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and Maintaining GBICs

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Note Because of interoperability issues, Cisco does not support GBICs purchased from

third-party vendors.

Port Cabling Specifications

Table 4-2 provides cabling specifications for the GBICs. The minimum cable

distance for all GBICs listed (MMF [multimode fiber] and SMF) is 6.5 feet (2

meters).

Note For information about the Coarse Wave Division Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

Table 4-2 GBIC Port Cabling Specifications

GBIC Wavelength1 (nm)

1. Nominal fiber specification wavelength.

Fiber Type Core Size

(microns) Modal Bandwidth

(MHz/km) Maximum Cable

Distance

SX2

2. MMF only.

850 MMF 62.5 160 722 ft (220 m)

62.5 200 902 ft (275 m)

50.0 400 1640 ft (500 m)

50.0 500 1804 ft (550 m)

LX/LH 1300 MMF3

3. Patch cord required (refer to the “Patch Cord” section on page 4-10 for details).

62.5 500 1804 ft (550 m)

50.0 400 1804 ft (550 m)

50.0 500 1804 ft (550 m)

SMF 9/10 – 6.2 mi (10 km)

ZX 1550 SMF 9/10 – 43.5 mi (70 km)

SMF4

4. Dispersion-shifted single-mode fiber-optic.

– – 62.1 mi (100 km)

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Chapter 4 Configuring the Gigabit Ethernet Ports Installing, Removing, and Maintaining GBICs

GBIC Optical Power Characteristics

Table 4-3 provides the GBIC optical power characteristics.

Note For information about the Coarse Wave Division Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

GBIC Cabling Restrictions

You must observe the following fiber-optic cabling restrictions when using

GBICs:

•The minimum cabling distance for 1000BASE-SX and 1000BASE-LX/LH

GBICs is 6.5 feet (2 meters).

•The maximum cabling distance for each GBIC type is listed in Table 4-2.

Table 4-3 GBIC Optical Power Characteristics

Parameter 1000BASE-SX

(WS-G5484) 1000BASE-LX/LH

(WS-G5486) 1000BASE-ZX

(WS-G5487)

Transmitter output power

(min/max) 0/–9.5 dBm –3/–9.5 dBm 0/4.77 dBm

Receiver maximum input

power 0 dBm –3 dBm –3 dBm

Receiver sensitivity –17 dBm –19 dBm –23 dBm

Channel insertion loss

50/125 micron1 MMF

1. 1 micron (µ) equals 1 micrometer or 10-6 meters

3.4 dBm 4.4 dBm –

62.5/125 micron MMF 3.2 dBm 6 dBm –

9/10 micron SMF – 6.5 dBm 21.5 dBm

Chapter 4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and Maintaining GBICs

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•When using the 1000BASE-LX/LH GBIC with 62.5-micron diameter MMF,

you must install a mode-conditioning patch cord between the MMF

fiber-optic network and the GBIC. The mode-conditioning patch cord

(CAB-GELX-625 or equivalent) is required to comply with IEEE standards.

See the “Patch Cord” section on page 4-10 for more information.

•You must insert a 10-dB inline optical attenuator between the single-mode

fiber-optic network and the receiving port on the 1000BASE-ZX GBIC at

each end of the link if the link length is less than 15.5 miles (25 km).

•You must insert a 5-dB inline optical attenuator between the single-mode

fiber-optic network and the receiving port on the 1000BASE-ZX GBIC at

each end of the link if the link is greater than 15.5 miles (25 km), but less than

31 miles (50 km).

Installing GBICs

This section describes how to install GBICs.

Caution Unnecessary removal and insertion of a GBIC could lead to premature failure of

the GBIC. A GBIC has a lifetime of 100 to 500 removals and insertions.

A switch can be shipped with or without GBICs installed.

Caution When removing or inserting a GBIC, always wear an ESD wrist strap connected

to the ESD wrist strap connector. For more information about ESD, refer to the

Site Preparation and Safety Guide.

Note GBICs are online swappable.

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Chapter 4 Configuring the Gigabit Ethernet Ports Installing, Removing, and Maintaining GBICs

To install a GBIC, perform these steps:

Step 1 Remove the GBIC from its protective packaging.

Step 2 Verify that the GBIC is the correct type for your network by checking the part

number.

The part number indicates whether it is 1000BASE-SX, 1000BASE-LX/LH, or

1000BASE-ZX.

Step 3 Grip the sides of the GBIC with your thumb and forefinger; insert the GBIC into

the slot on the front of the module.

See Figure 4-2 for GBIC installation on a Catalyst 2948G switch. See Figure 4-3

for GBIC installation on a Catalyst 2980G switch.

Note GBICs are keyed to prevent incorrect slot insertion. See Figure 4-4.

Figure 4-2 Installing a GBIC on a Catalyst 2948G Switch

CONSOLE 1000Base - X

10BaseT

STATUS

Catalyst 2948G

98456

Plug GBIC

Chapter 4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and Maintaining GBICs

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Figure 4-3 Installing a GBIC on a Catalyst 2980G Switch

Step 4 Slide the GBIC into the slot until you hear a click. The click indicates that the

GBIC is locked into the slot.

Step 5 When you are ready to attach the fiber-optic cable, remove the plug from the

GBIC and save it for future use.

Caution Do not remove the plug from the GBIC optical bores or the fiber-optic cable until

you are ready to connect the cable. The plug protects the GBIC optical bores and

cable from contamination.

Step 6 Remove the protective plug from the SC-type connector on the fiber-optic cable

if necessary. Insert the connector into the GBIC.

When you plug the SC-type connector into the GBIC, make sure that both the Tx

and Rx fiber-optic cables are already fully inserted into the SC-type connector.

98458

STATUS

SLOT 2

SLOT 3

10/100/1000 ETHERENET

171819

202122232425262728293031

171819

202122232425262728293031

33343536 3738394041424344454647

3334PWR

CONSOLE

CATALYST 2986

10MB MGT

RESET

345678910 11 12 13 14 15 16

12345678910111213141516

Plug GBIC

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Chapter 4 Configuring the Gigabit Ethernet Ports Installing, Removing, and Maintaining GBICs

Figure 4-4 Connecting the SC-Type Connector

Note If you are using the LX/LH GBIC with MMF, you need to install a patch cord

between the GBIC and the MMF cable. See the “Patch Cord” section on page 4-10

for details.

Removing GBICs

Note If you are removing the GBIC from an online switch, enter the show port

command to verify the type of GBIC that is installed.

To remove a GBIC, perform these steps:

Step 1 Disconnect the fiber-optic cable from the GBIC SC-type connector.

Step 2 Release the GBIC from the slot by simultaneously squeezing the plastic tabs (one

on each side of the GBIC).

Cable

Receptacle

Key slots

Keys

Receiver

Transmitter

Light out

of fiber

Light into

fiber

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Installing, Removing, and Maintaining GBICs

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Step 3 Slide the GBIC out of the slot.

Step 4 Install the plug into the GBIC optical bores and place the GBIC in its protective

packaging.

GBIC Maintenance Guidelines

Follow these GBIC maintenance guidelines:

•GBICs are static sensitive. To prevent ESD damage, follow your normal

board and component handling procedures.

•GBICs are dust sensitive. When the GBIC is stored or when a fiber-optic

cable is not plugged in, always keep plugs in the GBIC optical bores.

•The most common source of contaminants in the optical bores is debris

picked up on the ferrules of the optical connectors. Use an alcohol swab or

Kim-Wipe to clean the ferrules of the optical connector.

Patch Cord

When using the LX/LH GBIC with a 62.5-micron diameter core size MMF, you

must install a mode-conditioning patch cord (Cisco product number

CAB-GELX-625 or equivalent) between the GBIC and the MMF cable on both

the transmit and receive ends of the link. The patch cord is required for link

distances greater than 984 feet (300 meters).

Note We do not recommend using the LX/LH GBIC with MMF without a patch cord

for very short link distances (tens of meters). The result could be an elevated bit

error rate (BER).

Note The patch cord is required to comply with IEEE standards. The IEEE found that

link distances could not be achieved with certain types of fiber-optic cable due to

a problem in the center of some fiber-optic cable cores. The solution is to launch

light from the laser at a precise offset from the center by using the patch cord. At

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Chapter 4 Configuring the Gigabit Ethernet Ports Installing, Removing, and Maintaining GBICs

the output of the patch cord, the LX/LH GBIC is compliant with the IEEE 802.3z

standard for 1000BASE-LX. For a detailed description of this problem, refer to

Appendix C, “Differential Mode Delay.”

Note Cisco Gigabit Ethernet products have been tested and evaluated to comply with

the standards listed in Appendix A, “Specifications.” Equivalent cables should

also meet these standards.

Patch Cord Configuration Example

Figure 4-5 shows a typical configuration using patch cords.

Figure 4-5 Patch Cord Configuration

Patch Cord Installation

Plug the end of the patch cord labeled “To equipment” into the GBIC (see

Figure 4-6). Plug the end labeled “To cable plant” into the patch panel. The patch

cord is 9.84 feet (3 meters) long and has duplex SC-type male connectors at each

end.

1000BASE-LX/LH

port Patch

panel

Link span greater than 984 ft

(300 m)

1000BASE-LX/LH

port

Patch

panel

Patch

cord Building

cable plant

Patch

cord

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Connecting To an SFP Module

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Figure 4-6 Patch Cord Installation

Connecting To an SFP Module

This section describes how to connect to an SFP module. For instructions about

how to install or remove an SFP module, refer to the Cisco Small Form-Factor

Pluggable Modules Installation Notes (not orderable but is available on

Cisco.com) and to the documentation that came with your SFP module.

Table 4-4 lists the SFP modules supported by the Catalyst 2948G-GE-TX switch.

To equipment To cable plant

13089

Table 4-4 Supported SFP Modules

SFP Type Model Number

Fiber-optic 1000BASE-LX GLC-LS-SM=

Fiber-optic 1000BASE-SX GLC-SX-MM=

Fiber-optic 1000BASE-ZX GLC-ZX-SM=

Copper 1000BASE-T GLC-T=

Coarse Wave Division Multiplexing

(CWDM) fiber-optic SFP modules CWDM-SFP-1470=

CWDM-SFP-1490=

CWDM-SFP-1510=

CWDM-SFP-1530=

CWDM-SFP-1550=

CWDM-SFP-1570=

CWDM-SFP-1590=

CWDM-SFP-1610=

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Chapter 4 Configuring the Gigabit Ethernet Ports Connecting To an SFP Module

The restrictions are that each port must match the wave-length specifications on

the other end of the cable, and the cable must not exceed the recommended cable

length for reliable communications. Table 4-5 lists these recommendations.

Note For information about the Coarse Wave Division Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

The 1000BASE-T (copper) SFP module is used to establish a Gigabit Ethernet

connection through a Category 5 Category 5 cable.

Use only Cisco SFP modules on the Catalyst 2948G-GE-TX switch. Each SFP

module has an internal serial EEPROM that is encoded with security information.

This encoding provides a way for Cisco to identify and validate that the SFP

module meets the requirements for the switch.

Table 4-5 Fiber-Optic SFP Module Port Cabling Specifications

SFP Module Wavelength

(nanometers) Fiber Type Core Size

(micron)

Modal

Bandwidth

(MHz/km) Cable Distance

1000BASE-SX 850 MMF 62.5

62.5

50.0

160

200

400

500

722 ft (220 m)

902 ft (275 m)

1640 ft (500 m)

1804 ft (550 m)

1000BASE-LX/LH 1300 MMF1

SMF

1. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP modules, and

a short link distance can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH

SFP module with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cord between the SFP module

and the MMF cable on both the sending and receiving ends of the link. The mode-conditioning patch cord is required for link

distances greater than 984 feet (300 m).

62.5

50.0

9/10

500

400

500

—

1804 ft (550 m)

6.2 mi (10 km)

1000BASE-ZX 1550 SMF 9/10 — 43.4 to 62 mi (70 to

100 km)2

2. 1000BASE-ZX SFP modules can reach up to 100 km by using dispersion-shifted SMF or low-attenuation SMF; the distance

depends on the fiber quality, the number of splices, and the connectors.

Chapter 4 Configuring the Gigabit Ethernet Ports

Connecting To an SFP Module

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For more information about these SFP modules, refer to your SFP module

documentation and to the Cisco Small Form-Factor Pluggable Modules

Installation Notes (not orderable but is available on Cisco.com.)

For the latest information about SFP modules supported by the switch, refer to the

release notes.

Caution Do not remove the rubber plugs from the ports on fiber-optic SFP modules or the

rubber caps from the the fiber-optic cable until you are ready to connect the cable.

The plugs and caps protect the SFP module ports and cables from contamination

and ambient light.

Before connecting to an SFP module, be sure that you understand the port and

cabling stipulations in Table 4-5. See Appendix A, “Specifications,” for

information about the LC on the SFP modules for fiber-optic connections.

Follow these steps to connect a fiber-optic cable to an SFP module:

Warning

Invisible laser radiation may be emitted from disconnected fibers or

connectors. Do not stare into beams or view directly with optical instruments.

Statement 272

Step 1 Remove the rubber plugs from the module port and fiber-optic cable, and store

them for future use.

Step 2 Insert one end of the fiber-optic cable into the SFP module port, as shown in

Figure 4-7.

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Chapter 4 Configuring the Gigabit Ethernet Ports Connecting To an SFP Module

Figure 4-7 Connecting to an SFP Module Port

Step 3 Insert the other cable end in a fiber-optic receptacle on a target device.

Step 4 Observe the port LED.

•The LED turns green when the switch and the target device have an

established link.

•The LED turns amber while the STP discovers the network topology and

searches for loops. This process takes about 30 seconds, and then the port

LED turns green.

•If the LED is off, the target device might not be turned on, there might be a

cable problem, or there might be problem with the adapter installed in the

target device. See Chapter 5, “Troubleshooting the Installation,” for solutions

to cabling problems.

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Connecting To an SFP Module

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Step 5 If necessary, reconfigure and restart the switch or target device.

The Gigabit Ethernet ports on these modules are used primarily for backbone

interconnection of other high-performance switches and routers.

After you have connected all the interfaces, check all connections, and then

perform the steps described in the “Verifying Switch Operation” section on

page 3-23 to verify that the switch is operational.

CHAPTER

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Troubleshooting the Installation

This chapter describes how to troubleshoot the Catalyst 2948G, 2948G-GE-TX,

and 2980G switch installations. It contains these sections:

•Getting Started, page 5-2

•Problem Solving to the System Component Level, page 5-2

•Identifying Startup Problems, page 5-3

•Troubleshooting the Power Supply, page 5-4

•Contacting Customer Service, page 5-5

If you have problems starting up your system, use the information in this chapter

to help isolate the cause. Problems with the initial startup are often caused by poor

or improper connections. Temperature conditions above the maximum acceptable

level are rarely the source of problems at startup; however, environmental

monitoring functions are included in the following sections because they also

monitor DC-line voltages.

For configuration questions or problems, refer to the software configuration guide

or the command reference for your switch.

Chapter 5 Troubleshooting the Installation

Getting Started

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Getting Started

When the initial system boot is complete, verify the following:

•Power supplies are supplying power to the system.

•On Catalyst 2948G and 2980G switches, the system fan assembly is

operating.

•On Catalyst 2948G-GE-TX switches, the blower is operating.

If all of these conditions are met and the hardware installation is complete, refer

to the software configuration guide and the command reference for your switch to

troubleshoot the software. However, if any of these conditions is not met, use the

procedures in this chapter to isolate and, if possible, resolve the problem.

Problem Solving to the System Component Level

The key to success when troubleshooting the system is to isolate the problem to a

specific system component. The first step is to compare what the system is doing

to what it should be doing. Because a startup problem can usually be attributed to

a single component, it is more efficient to isolate the problem to a subsystem

rather than troubleshoot each component in the system separately.

The switch consists of the following subsystems:

•Power supply—Includes the power supplies and power supply fans (see

“Troubleshooting the Power Supply” section on page 5-4)

•Fans—The fan assembly should operate whenever system power is on. The

fan assembly continues to operate even when the environmental monitor

shuts the system down because of an overtemperature or overvoltage

condition (although it will shut down in the event of a power supply

shutdown).

The following are simple checks you can make to determine if there is a fan

problem:

•Determine if the software is reporting a temperature problem.

•Listen to the fan assembly to determine if it is operating.

•Check for any obstructions that might be restricting the airflow through the

switch.

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Chapter 5 Troubleshooting the Installation Identifying Startup Problems

If you encounter a problem in performing any of the above checks, you should

contact a customer service representative.

Identifying Startup Problems

LEDs indicate all system states in the startup sequence. By checking the LEDs,

you can determine when and where the system failed in the startup sequence. If

you have problems after the switch is powered on and the startup sequence is

complete, refer to the software configuration guide for your switch.

After you connect the power cord to the Catalyst 2948G, 2948G-GE-TX,

or 2980G switches, follow these steps:

Step 1 You should immediately hear the system fans begin to operate. If you do not, see

the “Troubleshooting the Power Supply” section on page 5-4. If you determine

that the power supplies are functioning normally and that the fans are faulty,

contact a customer service representative.

Step 2 Check the power supply LEDs as follows:

•The power supply LED should turn green immediately when power is applied

to the switch. The LED should remain on during normal system operation.

•If the LED turns amber, see the section, “Troubleshooting the Power Supply”

section on page 5-4.

Step 3 Check that the LEDs on the front panel light as follows:

•The STATUS LED flashes amber once and stays amber during diagnostic

boot tests. It turns green when the switch is operational (on line). If the

system software is unable to start up, this LED stays amber.

•The Link LED flashes amber once after diagnostic boot tests, and turns green

when the module is operational (on line). If no signal is detected, the Link

LED turns off. The Link LED blinks amber continuously if the port is bad.

Note After the diagnostic boot tests, the single flash of amber on the Link LED

may occur too quickly to be detected visually.

•If a STATUS LED is red or amber, contact a customer service representative

for instructions.

Chapter 5 Troubleshooting the Installation

Troubleshooting the Power Supply

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Step 4 If the boot information and system banner are not displayed, verify that the

terminal is set correctly and that it is connected properly to the console port.

Troubleshooting the Power Supply

To help isolate a power subsystem problem, follow these steps:

Step 1 Check the power supply LED:

Note Power supply LEDs are labeled PSI, PWR, and RPS.

•If the LED is either off or amber, unplug the power cord, and then plug the

power cord in again.

•If the LED remains off, there might be a problem with the AC source, or the

power cable. Connect the power cord to another power source (if one is

available).

If the LED then lights, the problem is the first power source.

•If the LED fails to light after you connect the power supply to a new power

source, replace the power cord.

If the LED still fails to light, the power supply is probably faulty.

Step 2 If a Redundant Power System (RPS) is installed, check the RPS LED:

If the LED is amber or off, repeat the previous procedure to troubleshoot the

second power supply.

Note If the power supply is a Cisco RPS 675 and the LED is amber, the RPS may be in

standby mode. Press the Standby/Active button on the RPS to put it in active mode

and the LED should then turn to green.

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Chapter 5 Troubleshooting the Installation Contacting Customer Service

Note If you are using an RPS, do not apply power to the RPS and the switch

simultaneously. Disconnect power from the internal power supply before

turning the power on for the RPS. The RPS contains multiple power

supplies for redundant power protection. Refer to the RPS documentation

for installation and configuration details.

Step 3 If you are unable to resolve the problem, contact a customer service representative

for instructions.

Contacting Customer Service

If you are unable to solve a startup problem after using the troubleshooting

suggestions in this chapter, contact a customer service representative for

assistance and further instructions. Before you call, have the following

information ready to help your customer service representative assist you as

quickly as possible:

•Date you received the switch

•Chassis serial number (located on a label on the right of the rear panel of the

chassis)

•Type of software and release number

•Maintenance agreement or warranty information

•Brief description of the problem

•Brief explanation of the steps you have already taken to isolate and resolve

the problem

Chapter 5 Troubleshooting the Installation

Contacting Customer Service

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APPENDIX

Specifications

This appendix provides management port and technical specifications for the

Catalyst 2948G, 2948G-GE-TX, and 2980G switches.

Console Serial Port

The console serial port is an RJ-45 receptacle. Data terminal ready (DTR) and

data set ready (DSR) handshake signals are supported on this port. The Request

To Send (RTS) signal tracks the state of the Clear To Send (CTS) input. Table A-1

lists the console port pinouts.

Table A-1 Console Port Pinouts

Pin Signal Direction Description

1 RTS output request to send

2 DTR output data terminal ready

3 TXD output transmit data

4 GND

5 GND

6 RXD input receive data

7 DSR input data set ready

8 CTS input clear to send

Appendix A Specifications

10BASE-T and 10/100BASE-T Ethernet Management Ports

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10BASE-T and 10/100BASE-T Ethernet Management

Ports

The Ethernet management port on each switch is an RJ-45 receptacle with a Link

Status LED. Table A-2 lists the port pinouts.

Catalyst 2948G Switch Specifications

Table A-3 lists the Catalyst 2948G specifications.

Table A-2 10BASE-T Port Pinouts

Pin Signal Direction Description

1 RXD+ input receive data

2 RXD- input receive data

3 TXD+ output transmit data

4 unused

5 unused

6 TXD- output transmit data

7 unused

8 unused

Table A-3 Catalyst 2948G Switch Specifications

Item Specification

Environmental

Temperature, ambient

operating 32°F (0°C) to 104°F (40°C)

Temperature, ambient

nonoperating and storage –40°F (–40°C) to 167°F (75°C)

Humidity (RH), ambient

(noncondensing) operating 10% to 90%

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Appendix A Specifications Catalyst 2948G Switch Specifications

Environmental (continued)

Humidity (RH), ambient

(noncondensing)

nonoperating and storage

5% to 95%

Altitude,

operating and nonoperating 0 to 65621.7 ft (0 to 2,000 m)

Switching Components

Backplane 12 Gbps full duplex

Microprocessor 150-MHz R5000 RISC–Y2K compliant

Memory 64 MB SDRAM, 12 MB Flash (onboard),

512 KB NVRAM, 8 MB synchronous SRAM,

256 bytes serial EEPROM

Physical Characteristics

Dimensions (H x W x D) 2.625 x 17.5 x 15 in. (6.6 x 44 x 38 cm)

Weight 13 lb. (5.9 kg)

AC Power

Power supply output 120 W

System power dissipation 189 W

System heat dissipation 645 BTU/hr.

AC input current 2.5 A maximum at 100 VAC

1.3 A maximum at @ 240 VAC

AC frequency 50 to 60 Hz

KVA rating 0.20

Airflow Front side in, back side out

Table A-3 Catalyst 2948G Switch Specifications (continued)

Item Specification

Appendix A Specifications

Catalyst 2948G Switch Specifications

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Standards Compliance

Compliance CE Marking

Safety UL1 1950, CSA2-C22.2 No. 950, EN360950,

IEC4 60950

EMI5CFR6 47, part 15 Class A (FCC), ICES7 003

Class A with UTP cables, EN55022 Class A

with UTP cables, CISPR228 Class A with UTP

cables, AS/NZS 3548 Class A with UTP

cables, and VCCI9 Class A with UTP cables

EN55024, ETS 300 386

EN55022 Class B with FTP cables, CISPR22

Class B with FTP cables, AS/NZS 3548

Class B with FTP cables, and VCCI Class B

with FTP cables

1. UL = Underwriters Laboratory

2. CSA = Canadian Standards Association

3. EN = European Norm

4. IEC = International Electrotechnical Commission

5. EMI = electromagnetic interference

6. CFR = Code of Federal Regulations

7. ICES = International Commerce Exchange Systems

8. CISPR = Comite International Special des Perturbation Radioelectriques

9. VCCI = Voluntary Control Council for Information Technology Equipment

Table A-3 Catalyst 2948G Switch Specifications (continued)

Item Specification

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Appendix A Specifications Catalyst 2948G-GE-TX Switch Specifications

Catalyst 2948G-GE-TX Switch Specifications

Table A-4 lists the Catalyst 2948G-GE-TX specifications.

Table A-4 Catalyst 2948G-GE-TX Switch Specifications

Item Specification

Environmental

Temperature, ambient

operating 32°F (0°C) to 104°F (45°C)

Temperature, ambient

nonoperating and storage –40°F (–40°C) to 167°F (75°C)

Humidity (RH), ambient

(noncondensing) operating 10% to 90%

Humidity (RH), ambient

(noncondensing)

nonoperating and storage

5% to 95%

Altitude,

operating and nonoperating 0 to 65621.7 ft (0 to 2,000 m)

Physical Characteristics

Dimensions (H x W x D) 1.75 x 17.5 x 17 in.

(4.45 x 44.5 x 43.1 cm)

Weight 13 lb. (5.9 kg)

AC Power

Power supply output 110 W

System power dissipation 130 W

System heat dissipation 445 BTU/hr.

AC input current 1.5 A maximum at 100 VAC

0.8 A maximum at 240 VAC

AC frequency 50 to 60 Hz

KVA rating 0.13

Airflow Front side in, back side out

Appendix A Specifications

Catalyst 2980G Switch Specifications

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Catalyst 2980G Switch Specifications

Table A-5 lists the Catalyst 2980G switch specifications.

Standards Compliance

Compliance CE Marking

Safety UL1 1950, CSA2-C22.2 No. 950, EN360950,

IEC4 60950

EMI5CFR6 47, part 15 Class A (FCC), ICES7 003

Class A with UTP cables, EN55022 Class A

with UTP cables, CISPR228 Class A with UTP

cables, AS/NZS 3548 Class A with UTP

cables, and VCCI9 Class A with UTP cables

EN55024, ETS 300 386

1. UL = Underwriters Laboratory

2. CSA = Canadian Standards Association

3. EN = European Norm

4. IEC = International Electrotechnical Commission

5. EMI = electromagnetic interference

6. CFR = Code of Federal Regulations

7. ICES = International Commerce Exchange Systems

8. CISPR = Comite International Special des Perturbation Radioelectriques

9. VCCI = Voluntary Control Council for Information Technology Equipment

Table A-4 Catalyst 2948G-GE-TX Switch Specifications (continued)

Item Specification

Table A-5 Catalyst 2980G Switch Specifications

Item Specification

Environmental

Temperature, ambient

operating 32°F (0°C) to 104°F (40°C)

Temperature, ambient

nonoperating and storage –4°F (–20°C) to 149°F (65°C)

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Appendix A Specifications Catalyst 2980G Switch Specifications

Humidity (RH), ambient

(noncondensing) operating 10% to 90%

Humidity (RH), ambient

(noncondensing) nonoperating

and storage

5% to 95%

Altitude, operating and

nonoperating 6561.7 ft. (0 to 2,000 m)

Switching Components

Backplane 12 Gbps full duplex

Microprocessor 150-MHz R5000 RISC–Y2K compliant

Memory 64 MB SDRAM, 16 MB Flash (onboard),

512 KB NVRAM, 8 MB synchronous SRAM,

256 bytes serial EEPROM

Physical Characteristics

Dimensions (H x W x D) 3.38 x 17.17 x 14.3 in. (8.6 x 43.6 x 36.3 cm)

Weight 13 lb. (5.9 kg)

AC Power

Power supply output 175 W (156 W on the Catalyst 2980G-A)

System power dissipation 270 W

System heat dissipation 950 BTU/hr. (670 BTU/hr. on the

Catalyst 2980G-A)

AC input current 3 A maximum at 100 VAC

1 A maximum at 240 VAC

AC frequency 50 to 60 Hz

KVA rating 0.30

Airflow Right side in, left side out

Standards Compliance

Compliance CE Marking

Table A-5 Catalyst 2980G Switch Specifications (continued)

Item Specification

Appendix A Specifications

Catalyst 2980G Switch Specifications

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Safety UL1 1950, CSA2-C22.2 No. 950, EN360950,

IEC4 60950

EMI5FCC6 Class A (CFR7 47, part 15), ICES8-003

Class A, EN55022 Class A, CISPR229

Class A, AS/NZS 3548 Class A, and VCCI10

Class A with FTP11 cables

EN55022 Class B, CISPR22 Class B, AS/NZS

3548 Class B, and VCCI Class B with FTP

cables

1. UL = Underwriters Laboratories

2. CSA = Canadian Standards Association

3. EN = European Norm

4. IEC = International Electrotechnical Commission

5. EMI = electromagnetic interference

6. FCC = Federal Communications Commission

7. CFR = Code of Federal Regulations

8. ICES = International Commerce Exchange Systems

9. CISPR = Comite International Special des Perturbation Radioelectriques

10. VCCI = Voluntary Control Council for Information Technology Equipment

11. FTP = foil-twisted pair

Table A-5 Catalyst 2980G Switch Specifications (continued)

Item Specification

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APPENDIX

Repacking a Switch

This appendix provides repacking and shipping instructions for the

Catalyst 2948G, 2948G-GE-TX, and 2980G switches if you need to return your

switch to the factory.

To repack the switch using the original packaging material, follow these steps:

Step 1 Slide the pieces of the packing foam over the switch. (See Figure B-1.)

Note The Catalyst 2948G switch is shown in Figure B-1. The repackaging

procedure for the other switches is identical.

Step 2 Place the documentation and accessory kit in the box or poly bag provided.

Step 3 Place the box or poly bag containing the documentation and accessory kit on top

of the packing material.

Step 4 Place the switch (with packing foam pieces) into the packing carton.

Step 5 Fold in the top flaps of the packing carton and seal with packing tape.

Appendix B Repacking a Switch

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Figure B-1 Switch Packing Material

CONSOLE

1000Base - X

10BaseT

STATUS

Catalyst 2948G

Packing foam

Packing

carton

Packing foam

Documentation and

accessories in poly bag

29715

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APPENDIX

Differential Mode Delay

When an unconditioned laser source designed for operation on a single-mode

fiber (SMF) cable is directly coupled to a multimode fiber (MMF) cable,

differential mode delay (DMD) might occur. DMD can degrade the modal

bandwidth of the fiber-optic cable. This degradation causes a decrease in the link

span (the distance between the transmitter and the receiver) that can be reliably

supported.

The Gigabit Ethernet specification (IEEE 802.3z) outlines parameters for

Ethernet communications at a gigabit-per-second rate. The specification describes

a higher-speed version of Ethernet for backbone and server connectivity using

existing deployed MMF cable. It does this by defining the use of laser-based

optical components to propagate data over MMF cable.

Lasers function at the baud rates and longer distances required for Gigabit

Ethernet. The IEEE 802.3z Gigabit Ethernet Task Force has identified the DMD

condition that occurs in certain circumstances with particular combinations of

lasers and MMF cable. The resulting characteristics create an additional element

of jitter, which limits the reach of Gigabit Ethernet over MMF cable.

When DMD occurs, a single laser light pulse excites a few modes equally within

an MMF cable. These modes, or light pathways, then follow two or more different

paths. The paths might have different lengths and transmission delays as the light

travels through the cable. When DMD occurs, a distinct pulse propagating down

the cable no longer remains distinct or, in extreme cases, might become two

independent pulses. Strings of pulses tend to interfere with each other, making it

difficult to recover data in a reliable fashion.

Appendix C Differential Mode Delay

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DMD does not occur in all deployed fibers; rather, it occurs with certain

combinations of worst-case fibers and worst-case transceivers. Gigabit Ethernet

is the first technology to experience this problem because of its very high baud

rate and its long MMF cable lengths. SMF cable and copper cable are not affected

by DMD.

MMF cable has been tested for use only with LED sources. LEDs create a

condition within a fiber-optic cable referred to as an overfilled launch condition.

The overfilled launch condition describes the way LED transmitters couple light

into the fiber-optic cable in a broad spread of modes. Similar to a light bulb

radiating light in a dark room, the generated light that shines in multiple directions

can overfill the existing cable space and excite a large number of modes. (See

Figure C-1.)

Figure C-1 LED Transmission Compared to Laser Transmission

Lasers launch light in a more concentrated fashion. A laser transmitter couples

light into only a fraction of the existing modes or optical pathways present in the

fiber-optic cable. (See Figure C-1.)

The solution to DMD in this case is to condition the laser light launched from the

source (transmitter) so that it spreads the light evenly across the diameter of the

fiber-optic cable, making the launch look more like an LED source to the cable.

The objective is to scramble the modes of light to distribute the power more

equally in all modes and prevent the light from being concentrated in just a few

LED transmission

Laser transmission

12871

LED

Laser

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Appendix C Differential Mode Delay

modes. This is in contrast to an unconditioned launch, which, in the worst case,

might concentrate all of its light in the center of the fiber-optic cable, exciting

only two or more modes equally.

A significant variation in the amount of DMD is produced from one MMF cable

to the next. No reasonable test can be performed to survey an installed cable plant

to assess the effect of DMD. Therefore, you must use a mode-conditioning patch

cord for all interfaces using MMF when the link span exceeds 984 feet (300

meters). For link spans less than this, you can omit the patch cord (there is no

problem using it on short links).

Appendix C Differential Mode Delay

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APPENDIX

Translated Safety Warnings

This appendix repeats in multiple languages the warnings in this guide. These

translated warnings can be used with other documents related to this guide.

Appendix D Translated Safety Warnings

Warning Definition

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Warning Definition

Warning

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause

bodily injury. Before you work on any equipment, be aware of the hazards

involved with electrical circuitry and be familiar with standard practices for

preventing accidents. Use the statement number provided at the end of each

warning to locate its translation in the translated safety warnings that

accompanied this device.

Statement 1071

SAVE THESE INSTRUCTIONS

Waarschuwing

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die

lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat

werken, dient u zich bewust te zijn van de bij elektrische schakelingen

betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken

om ongelukken te voorkomen. Gebruik het nummer van de verklaring

onderaan de waarschuwing als u een vertaling van de waarschuwing die bij

het apparaat wordt geleverd, wilt raadplegen.

BEWAAR DEZE INSTRUCTIES

Varoitus

TÄRKEITÄ TURVALLISUUSOHJEITA

Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia

vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien

käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin

ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen

mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta

varoitusten lopussa näkyvien lausuntonumeroiden avulla.

SÄILYTÄ NÄMÄ OHJEET

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Appendix D Translated Safety Warnings Warning Definition

Attention

IMPORTANTES INFORMATIONS DE SÉCURITÉ

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une

situation pouvant entraîner des blessures ou des dommages corporels. Avant

de travailler sur un équipement, soyez conscient des dangers liés aux circuits

électriques et familiarisez-vous avec les procédures couramment utilisées

pour éviter les accidents. Pour prendre connaissance des traductions des

avertissements figurant dans les consignes de sécurité traduites qui

accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la

fin de chaque avertissement.

CONSERVEZ CES INFORMATIONS

Warnung

WICHTIGE SICHERHEITSHINWEISE

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die

zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit

den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur

Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung

angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den

übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät

ausgeliefert wurden.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

Avvertenza

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe

causare infortuni alle persone. Prima di intervenire su qualsiasi

apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti

elettrici e conoscere le procedure standard per la prevenzione di incidenti.

Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per

individuare le traduzioni delle avvertenze riportate in questo documento.

CONSERVARE QUESTE ISTRUZIONI

Appendix D Translated Safety Warnings

Warning Definition

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Advarsel

VIKTIGE SIKKERHETSINSTRUKSJONER

Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade

på person. Før du begynner å arbeide med noe av utstyret, må du være

oppmerksom på farene forbundet med elektriske kretser, og kjenne til

standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver

advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som

fulgte med denne enheten.

TA VARE PÅ DISSE INSTRUKSJONENE

Aviso

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você está em uma situação que poderá

ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer

equipamento, tenha conhecimento dos perigos envolvidos no manuseio de

circuitos elétricos e familiarize-se com as práticas habituais de prevenção de

acidentes. Utilize o número da instrução fornecido ao final de cada aviso para

localizar sua tradução nos avisos de segurança traduzidos que acompanham

este dispositivo.

GUARDE ESTAS INSTRUÇÕES

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Appendix D Translated Safety Warnings Warning Definition

¡Advertencia!

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Este símbolo de aviso indica peligro. Existe riesgo para su integridad física.

Antes de manipular cualquier equipo, considere los riesgos de la corriente

eléctrica y familiarícese con los procedimientos estándar de prevención de

accidentes. Al final de cada advertencia encontrará el número que le ayudará

a encontrar el texto traducido en el apartado de traducciones que acompaña

a este dispositivo.

GUARDE ESTAS INSTRUCCIONES

Varning!

VIKTIGA SÄKERHETSANVISNINGAR

Denna varningssignal signalerar fara. Du befinner dig i en situation som kan

leda till personskada. Innan du utför arbete på någon utrustning måste du vara

medveten om farorna med elkretsar och känna till vanliga förfaranden för att

förebygga olyckor. Använd det nummer som finns i slutet av varje varning för

att hitta dess översättning i de översatta säkerhetsvarningar som medföljer

denna anordning.

SPARA DESSA ANVISNINGAR

Appendix D Translated Safety Warnings

Warning Definition

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Appendix D Translated Safety Warnings Safety Information Referral Warning

Safety Information Referral Warning

Warning

Before you install, operate, or service the system, read the Site Preparation

and Safety Guide. This guide contains important safety information you should

know before working with the system.

Statement 200

Waarschuwing

Lees de handleiding Voorbereiding en veiligheid van de locatie Handleiding

voordat u het systeem installeert of gebruikt of voordat u onderhoud aan het

systeem uitvoert. Deze handleiding bevat belangrijke

beveiligingsvoorschriften waarvan u op de hoogte moet zijn voordat u met het

systeem gaat werken.

Appendix D Translated Safety Warnings

Safety Information Referral Warning

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Varoitus

Ennen kuin asennat järjestelmän tai käytät tai huollat sitä, lue Asennuspaikan

valmistelu-jaturvaopas -opasta. Tässä oppaassa on tärkeitä

turvallisuustietoja, jotka tulisi tietää ennen järjestelmän käyttämistä.

Attention

Avant d'installer le système, de l'utiliser ou d'assurer son entretien, veuillez

lire le Guide de sécurité et de préparation du site. Celui-ci présente des

informations importantes relatives à la sécurité, dont vous devriez prendre

connaissance.

Warnung

Warnhinweis Bevor Sie das System installieren, in Betrieb setzen oder

warten, lesen Sie die Anleitung zur Standortvorbereitung und

Sicherheitshinweise. Dieses Handbuch enthält wichtige Informationen zur

Sicherheit, mit denen Sie sich vor dem Verwenden des Systems vertraut

machen sollten.

Avvertenza

Prima di installare, mettere in funzione o effettuare interventi di

manutenzione sul sistema, leggere le informazioni contenute nella

documentazione sulla Guida alla sicurezza. Tale guida contiene importanti

informazioni che è necessario acquisire prima di iniziare qualsiasi intervento

sul sistema.

Advarsel

Før du installerer, tar i bruk eller utfører vedlikehold på systemet, må du lese

Veiledning for stedsklargjøring og sikkerhet. Denne håndboken inneholder

viktig informasjon om sikkerhet som du bør være kjent med før du begynner å

arbeide med systemet.

Aviso

Antes de instalar, funcionar com, ou prestar assistência ao sistema, leia o

Guia de Preparação e Segurança do Local. Este guia contém informações de

segurança importantes que deve conhecer antes de trabalhar com o sistema.

¡Advertencia!

Antes de instalar, manejar o arreglar el sistema, le aconsejamos que consulte

la Guía de prevención y preparación de una instalación. Esta guía contiene

importante información para su seguridad que debe saber antes de comenzar

a trabajar con el sistema.

Varning!

Innan du installerar, använder eller utför service på systemet ska du läsa

Förberedelser och säkerhet Handbok. Denna handbok innehåller viktig

säkerhetsinformation som du bör känna till innan du arbetar med systemet.

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Appendix D Translated Safety Warnings Qualified Personnel Warning

Qualified Personnel Warning

Warning

Only trained and qualified personnel should be allowed to install or replace

this equipment.

Statement 1030

Waarschuwing

Installatie en reparaties mogen uitsluitend door getraind en bevoegd

personeel uitgevoerd worden.

Varoitus

Ainoastaan koulutettu ja pätevä henkilökunta saa asentaa tai vaihtaa tämän

laitteen.

Avertissement

Tout installation ou remplacement de l'appareil doit être réalisé par du

personnel qualifié et compétent.

Achtung

Gerät nur von geschultem, qualifiziertem Personal installieren oder

auswechseln lassen.

Avvertenza

Solo personale addestrato e qualificato deve essere autorizzato ad installare

o sostituire questo apparecchio.

Advarsel

Kun kvalifisert personell med riktig opplæring bør montere eller bytte ut dette

utstyret.

Aviso

Este equipamento deverá ser instalado ou substituído apenas por pessoal

devidamente treinado e qualificado.

¡Atención!

Estos equipos deben ser instalados y reemplazados exclusivamente por

personal técnico adecuadamente preparado y capacitado.

Varning

Denna utrustning ska endast installeras och bytas ut av utbildad och

kvalificerad personal.

Appendix D Translated Safety Warnings

Invisible Laser Radiation Warning

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Invisible Laser Radiation Warning

Warning

Because invisible laser radiation may be emitted from the aperture of the port

when no cable is connected, avoid exposure to laser radiation and do not

stare into open apertures.

Statement 70

Waarschuwing

Omdat er onzichtbare laserstraling uit de opening van de poort geëmitteerd

kan worden wanneer er geen kabel aangesloten is, dient men om blootstelling

aan laserstraling te vermijden niet in de open openingen te kijken.

Varoitus

Kun porttiin ei ole kytketty kaapelia, portin aukosta voi vuotaa näkymätöntä

lasersäteilyä. Älä katso avoimiin aukkoihin, jotta et altistu säteilylle.

Attention

Etant donné qu’un rayonnement laser invisible peut être émis par l’ouverture

du port quand aucun câble n’est connecté, ne pas regarder dans les

ouvertures béantes afin d’éviter tout risque d’exposition au rayonnement

laser.

Warnung

Aus der Öffnung des Ports kann unsichtbare Laserstrahlung austreten, wenn

kein Kabel angeschlossen ist. Kontakt mit Laserstrahlung vermeiden und nicht

in offene Öffnungen blicken.

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Appendix D Translated Safety Warnings Laser Radiation

Laser Radiation

Avvertenza

Poiché quando nessun cavo è collegato alla porta, da quest’ultima potrebbe

essere emessa radiazione laser invisibile, evitare l’esposizione a tale

radiazione e non fissare con gli occhi porte a cui non siano collegati cavi.

Advarsel

Usynlige laserstråler kan sendes ut fra åpningen på utgangen når ingen kabel

er tilkoblet. Unngå utsettelse for laserstråling og se ikke inn i åpninger som

ikke er tildekket.

Aviso

Evite uma exposição à radiação laser e não olhe através de aberturas

expostas, porque poderá ocorrer emissão de radiação laser invisível a partir

da abertura da porta, quando não estiver qualquer cabo conectado.

¡Advertencia!

Cuando no esté conectado ningún cable, pueden emitirse radiaciones láser

invisibles por el orificio del puerto. Evitar la exposición a radiaciones láser y

no mirar fijamente los orificios abiertos.

Varning!

Osynliga laserstrålar kan sändas ut från öppningen i porten när ingen kabel är

ansluten. Undvik exponering för laserstrålning och titta inte in i ej täckta

öppningar.

Warning

Invisible laser radiation may be emitted from disconnected fibers or

connectors. Do not stare into beams or view directly with optical instruments.

Statement 272

Waarschuwing

Losgekoppelde of losgeraakte glasvezels of aansluitingen kunnen

onzichtbare laserstraling produceren. Kijk niet rechtstreeks in de straling en

gebruik geen optische instrumenten rond deze glasvezels of aansluitingen.

Varoitus

Irrotetuista kuiduista tai liittimistä voi tulla näkymätöntä lasersäteilyä. Älä

tuijota säteitä tai katso niitä suoraan optisilla välineillä.

Appendix D Translated Safety Warnings

Laser Radiation

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Attention

Les fibres ou connecteurs débranchés risquent d'émettre des rayonnements

laser invisibles à l'œil. Ne regardez jamais directement les faisceaux laser à

l'œil nu, ni d'ailleurs avec des instruments optiques.

Warnung

Unterbrochene Fasern oder Steckerverbindungenkönnen unsichtbare

Laserstrahlung abgeben. Blicken Sie weder mit bloßem Auge noch mit

optischen Instrumenten direkt in Laserstrahlen.

Avvertenza

Le fibre ottiche ed i relativi connettori possono emettere radiazioni laser. I

fasci di luce non devono mai essere osservati direttamente o attraverso

strumenti ottici.

Advarsel

Det kan forekomme usynlig laserstråling fra fiber eller kontakter som er

frakoblet. Stirr ikke direkte inn i strålene eller se på dem direkte gjennom et

optisk instrument.

Aviso

Radiação laser invisível pode ser emitida de conectores ou fibras

desconectadas. Não olhe diretamente para os feixes ou com instrumentos

ópticos.

¡Advertencia!

Es posible que las fibras desconectadas emitan radiación láser invisible. No

fije la vista en los rayos ni examine éstos con instrumentos ópticos.

Varning!

Osynlig laserstrålning kan avges från frånkopplade fibrer eller kontaktdon.

Rikta inte blicken in i strålar och titta aldrig direkt på dem med hjälp av

optiska instrument.

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Appendix D Translated Safety Warnings Attaching the Cisco RPS (model PWR300-AC-RPS-N1)

Attaching the Cisco RPS (model

PWR300-AC-RPS-N1)

Warning

Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle.

Statement 100B

Waarschuwing

Slechts de Cisco RPS (model PWR300-AC-RPS-N1) aan de RPS contactdoos

verbinden.

Varoitus

Kiinnitä RPS-vastakappaleeseen vain Cisco RPS (malli PWR300-AC-RPS-N1).

Avertissement

Raccordez le bloc d’alimentation Cisco RPS (modèle PWR300-AC-RPS-N1)

uniquement au connecteur RPS.

Warnung

An die RPS-Steckhülse darf nur das Cisco RPS (Modell PWR300-AC-RPS-N1)

angeschlossen werden.

Avvertenza

Collegare soltanto il Cisco RPS (modello PWR300-AC-RPS-N1) alla presa RPS.

Advarsel!

Koble bare Cisco RPS (modell PWR300-AC-RPS-N1) til RPS-stikkontakten.

Aviso

Anexe o RPS Cisco (modelo PWR300-AC-RPS-N1) apenas ao receptáculo RPS.

¡Advertencia!

Sólo conecte el Cisco RPS (modelo PWR300-AC-RPS-N1) al receptáculo RPS.

Appendix D Translated Safety Warnings

Attaching the Cisco RPS (model PWR600-AC-RPS)

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Varning!

Koppla endast Ciscos RPS (modell PWR300-AC-RPS-N1) till RPS-uttaget.

Warning

Attach only the Cisco RPS (model PWR600-AC-RPS) to the RPS receptacle.

Statement 112

Waarschuwing

Slechts de Cisco RPS (model PWR600-AC-RPS) aan de RPS contactdoos

verbinden.

Varoitus

Kiinnitä RPS-vastakappaleeseen vain Cisco RPS (malli PWR600-AC-RPS).

Avertissement

Raccordez le bloc d’alimentation Cisco RPS (modèle PWR600-AC-RPS)

uniquement au connecteur RPS.

Warnung

An die RPS-Steckhülse darf nur das Cisco RPS (Modell PWR600-AC-RPS)

angeschlossen werden.

Avvertenza

Collegare soltanto il Cisco RPS (modello PWR600-AC-RPS) alla presa RPS.

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Appendix D Translated Safety Warnings Attaching the Cisco RPS (model PWR675-AC-RPS-N1)

Attaching the Cisco RPS (model

PWR675-AC-RPS-N1)

Advarsel!

Koble bare Cisco RPS (modell PWR600-AC-RPS) til RPS-stikkontakten.

Aviso

Anexe o RPS Cisco (modelo PWR600-AC-RPS) apenas ao receptáculo RPS.

¡Advertencia!

Sólo conecte el Cisco RPS (modelo PWR600-AC-RPS) al receptáculo RPS.

Varning!

Koppla endast Ciscos RPS (modell PWR600-AC-RPS) till RPS-uttaget.

Warning

Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle.

Statement 100C

Waarschuwing

Slechts de Cisco RPS (model PWR675-AC-RPS-N1) aan de RPS contactdoos

verbinden.

Varoitus

Kiinnitä RPS-vastakappaleeseen vain Cisco RPS (malli PWR675-AC-RPS-N1).

Appendix D Translated Safety Warnings

Attaching the Cisco RPS (model PWR675-AC-RPS-N1)

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Avertissement

Raccordez le bloc d’alimentation Cisco RPS (modèle PWR675-AC-RPS-N1)

uniquement au connecteur RPS.

Warnung

An die RPS-Steckhülse darf nur das Cisco RPS (Modell PWR675-AC-RPS-N1)

angeschlossen werden.

Avvertenza

Collegare soltanto il Cisco RPS (modello PWR675-AC-RPS-N1) alla presa RPS.

Advarsel!

Koble bare Cisco RPS (modell PWR675-AC-RPS-N1) til RPS-stikkontakten.

Aviso

Anexe o RPS Cisco (modelo PWR675-AC-RPS-N1) apenas ao receptáculo RPS.

¡Advertencia!

Sólo conecte el Cisco RPS (modelo PWR675-AC-RPS-N1) al receptáculo RPS.

Varning!

Koppla endast Ciscos RPS (modell PWR675-AC-RPS-N1) till RPS-uttaget.

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Appendix D Translated Safety Warnings Redundant Power Supply Connection Warning

Redundant Power Supply Connection Warning

Warning

If a redundant power system (RPS) is not connected to the switch, install an

RPS connector cover on the back of the switch.

Statement 265

Waarschuwing

Als er geen redundant voedingssysteem (RPS) aan de schakelaar is

gekoppeld, dient u een RPS-connectorkapje op de achterkant van de

schakelaar te installeren.

Varoitus

Jos korvautuvaa tehojärjestelmää (redundant power system, RPS) ei ole

liitetty kytkimeen, kiinnitä RPS-liittimen suojus kytkimen takapuolelle.

Attention

Si un système d’alimentation électrique redondant (RPS) n’est pas connecté

au commutateur, installez un cache de connecteur RPS à l’arrière du

commutateur.

Warnung

Wenn keine redundante Stromversorgung (RSV) an den Schalter

angeschlossen ist, eine RSV-Steckerabdeckung an der Rückseite des

Schalters anbringen.

Avvertenza

Se un sistema RPS (Redundant Power System ) di alimentazione ridondante

non è collegato al dispositivo switch, installare un copri-connettore RPS sul

retro del switch.

Advarsel

Dersom et redundant strømsystem ( Redundant Power System -RPS) ikke er

koblet til bryteren, skal det installeres et RPS-koblingsdeksel på baksiden av

bryteren.

Aviso

Se um sistema de alimentação redundante (RPS) não estiver conectado a um

switch, instale uma capa de conector RPS na parte de trás do switch.

¡Advertencia!

Si no se conecta un sistema de potencia redundante (RPS) al interruptor,

instale una cubierta de conector RPS en la parte posterior del interruptor.

Appendix D Translated Safety Warnings

Switch Installation Warning

D-18

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Switch Installation Warning

Varning!

Om ett redundant strömförsörjningssystem (redundant power system, RPS) inte

finns anslutet till switchen skall ett RPS-kontaktskydd installeras på

switchens baksida.

Warning

To comply with safety regulations, mount switches on a wall with the front

panel facing up.

Statement 266

Waarschuwing

Om te voldoen aan de veiligheidsvoorschriften dient u de schakelaars op een

muur te monteren met het voorpaneel omhoog.

Varoitus

Turvallisuusmääräykset edellyttävät, että kytkimet kiinnitetään seinään

etupaneeli ylöspäin.

Attention

Pour satisfaire aux dispositions de sécurité, installez les commutateurs

muraux avec le panneau frontal vers le haut.

D-19

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78-6286-05

Appendix D Translated Safety Warnings Switch Installation Warning

Warnung

Zur Einhaltung der Sicherheitsvorschriften die Schalter so an einer Wand

montieren, dass die Frontplatte nach oben zeigt.

Figyelem!

A biztonsági elõírások betartása érdekében a kapcsolókat úgy szerelje a

falra, hogy az elõlapjuk felfelé nézzen.

Avvertenza

In conformità ai regolamenti di sicurezza, installare i dispositivi switch a

muro con il pannello frontale rivolto in su.

Advarsel

For å etterkomme sikkerhetsreglene skal brytere monteres på en vegg med

frontpanelet vendt opp.

Aviso

Para cumprir com os regulamentos de segurança, faça a montagem de

switches em uma parede com o painel frontal virado para cima.

¡Advertencia!

Para cumplir con las reglas de seguridad, instale los interruptores en una

pared con el panel del frente hacia arriba.

Varning!

För att uppfylla säkerhetsföreskrifter skall omkopplarna monteras på en vägg

med frampanelen riktad uppåt.

Appendix D Translated Safety Warnings

Chassis Warning for Rack-Mounting and Servicing

D-20

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

Chassis Warning for Rack-Mounting and Servicing

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you

must take special precautions to ensure that the system remains stable. The

following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the

top with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting

or servicing the unit in the rack.

Statement 1006

Waarschuwing

Om lichamelijk letsel te voorkomen wanneer u dit toestel in een rek monteert

of het daar een servicebeurt geeft, moet u speciale voorzorgsmaatregelen

nemen om ervoor te zorgen dat het toestel stabiel blijft. De onderstaande

richtlijnen worden verstrekt om uw veiligheid te verzekeren:

• Dit toestel dient onderaan in het rek gemonteerd te worden als het toestel het enige

in het rek is.

• Wanneer u dit toestel in een gedeeltelijk gevuld rek monteert, dient u het rek van

onderen naar boven te laden met het zwaarste onderdeel onderaan in het rek.

• Als het rek voorzien is van stabiliseringshulpmiddelen, dient u de stabilisatoren te

monteren voordat u het toestel in het rek monteert of het daar een servicebeurt geeft.

Varoitus

Kun laite asetetaan telineeseen tai huolletaan sen ollessa telineessä, on

noudatettava erityisiä varotoimia järjestelmän vakavuuden säilyttämiseksi,

jotta vältytään loukkaantumiselta. Noudata seuraavia turvallisuusohjeita:

• Jos telineessä ei ole muita laitteita, aseta laite telineen alaosaan.

• Jos laite asetetaan osaksi täytettyyn telineeseen, aloita kuormittaminen sen

alaosasta kaikkein raskaimmalla esineellä ja siirry sitten sen yläosaan.

• Jos telinettä varten on vakaimet, asenna ne ennen laitteen asettamista telineeseen

tai sen huoltamista siinä.

D-21

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78-6286-05

Appendix D Translated Safety Warnings Chassis Warning for Rack-Mounting and Servicing

Attention

Pour éviter toute blessure corporelle pendant les opérations de montage ou de

réparation de cette unité en casier, il convient de prendre des précautions

spéciales afin de maintenir la stabilité du système. Les directives ci-dessous

sont destinées à assurer la protection du personnelþ:

• Si cette unité constitue la seule unité montée en casier, elle doit être placée dans le

bas.

• Si cette unité est montée dans un casier partiellement rempli, charger le casier de

bas en haut en plaçant l'élément le plus lourd dans le bas.

• Si le casier est équipé de dispositifs stabilisateurs, installer les stabilisateurs avant

de monter ou de réparer l'unité en casier.

Warnung

Zur Vermeidung von Körperverletzung beim Anbringen oder Warten dieser

Einheit in einem Gestell müssen Sie besondere Vorkehrungen treffen, um

sicherzustellen, daß das System stabil bleibt. Die folgenden Richtlinien sollen

zur Gewährleistung Ihrer Sicherheit dienen:

• Wenn diese Einheit die einzige im Gestell ist, sollte sie unten im Gestell angebracht

werden.

• Bei Anbringung dieser Einheit in einem zum Teil gefüllten Gestell ist das Gestell von

unten nach oben zu laden, wobei das schwerste Bauteil unten im Gestell anzubringen

ist.

• Wird das Gestell mit Stabilisierungszubehör geliefert, sind zuerst die Stabilisatoren

zu installieren, bevor Sie die Einheit im Gestell anbringen oder sie warten.

Avvertenza

Per evitare infortuni fisici durante il montaggio o la manutenzione di questa

unità in un supporto, occorre osservare speciali precauzioni per garantire che

il sistema rimanga stabile. Le seguenti direttive vengono fornite per garantire

la sicurezza personale:

• Questa unità deve venire montata sul fondo del supporto, se si tratta dell’unica unità

da montare nel supporto.

• Quando questa unità viene montata in un supporto parzialmente pieno, caricare il

supporto dal basso all’alto, con il componente più pesante sistemato sul fondo del

supporto.

• Se il supporto è dotato di dispositivi stabilizzanti, installare tali dispositivi prima di

montare o di procedere alla manutenzione dell’unità nel supporto.

Appendix D Translated Safety Warnings

Chassis Warning for Rack-Mounting and Servicing

D-22

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

Advarsel

Unngå fysiske skader under montering eller reparasjonsarbeid på denne

enheten når den befinner seg i et kabinett. Vær nøye med at systemet er stabilt.

Følgende retningslinjer er gitt for å verne om sikkerheten:

• Denne enheten bør monteres nederst i kabinettet hvis dette er den eneste enheten i

kabinettet.

• Ved montering av denne enheten i et kabinett som er delvis fylt, skal kabinettet lastes

fra bunnen og opp med den tyngste komponenten nederst i kabinettet.

• Hvis kabinettet er utstyrt med stabiliseringsutstyr, skal stabilisatorene installeres før

montering eller utføring av reparasjonsarbeid på enheten i kabinettet.

Aviso

Para se prevenir contra danos corporais ao montar ou reparar esta unidade

numa estante, deverá tomar precauções especiais para se certificar de que o

sistema possui um suporte estável. As seguintes directrizes ajudá-lo-ão a

efectuar o seu trabalho com segurança:

• Esta unidade deverá ser montada na parte inferior da estante, caso seja esta a única

unidade a ser montada.

• Ao montar esta unidade numa estante parcialmente ocupada, coloque os itens mais

pesados na parte inferior da estante, arrumando-os de baixo para cima.

• Se a estante possuir um dispositivo de estabilização, instale-o antes de montar ou

reparar a unidade.

¡Advertencia!

Para evitar lesiones durante el montaje de este equipo sobre un bastidor, o

posteriormente durante su mantenimiento, se debe poner mucho cuidado en

que el sistema quede bien estable. Para garantizar su seguridad, proceda

según las siguientes instrucciones:

• Colocar el equipo en la parte inferior del bastidor, cuando sea la única unidad en el

mismo.

• Cuando este equipo se vaya a instalar en un bastidor parcialmente ocupado,

comenzar la instalación desde la parte inferior hacia la superior colocando el equipo

más pesado en la parte inferior.

• Si el bastidor dispone de dispositivos estabilizadores, instalar éstos antes de montar

o proceder al mantenimiento del equipo instalado en el bastidor.

D-23

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

Appendix D Translated Safety Warnings Chassis Warning for Rack-Mounting and Servicing

Varning!

För att undvika kroppsskada när du installerar eller utför underhållsarbete på

denna enhet på en ställning måste du vidta särskilda försiktighetsåtgärder för

att försäkra dig om att systemet står stadigt. Följande riktlinjer ges för att

trygga din säkerhet:

• Om denna enhet är den enda enheten på ställningen skall den installeras längst ned

på ställningen.

• Om denna enhet installeras på en delvis fylld ställning skall ställningen fyllas

nedifrån och upp, med de tyngsta enheterna längst ned på ställningen.

• Om ställningen är försedd med stabiliseringsdon skall dessa monteras fast innan

enheten installeras eller underhålls på ställningen.

•

Appendix D Translated Safety Warnings

Chassis Warning for Rack-Mounting and Servicing

D-24

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

•

IN-1

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

INDEX

Numerics

10/100/1000 ports

connecting to 3-20 to 3-22

described 1-3

10/100BASE-T 1-8

10/100 ports

connecting to 3-20 to 3-22

described 1-3

1000BASE-LX/LH GBICs 4-3

1000BASE-LX SFP modules 4-12

1000BASE-SX GBICs 4-3

1000BASE-SX SFP modules 4-12

1000BASE-T 1-4, 1-6, 1-7

1000BASE-T SFP modules 4-12

1000BASE-TX GBICs 4-3

1000BASE-X 1-2

1000BASE-X (CWDM) GBICs 4-3

1000BASE-X (CWDM) SFP modules 4-12

1000BASE-ZX GBICs 4-3

1000BASE-ZX SFP modules 4-12

100BASE-T 1-4

10BASE-T 1-4, 1-8

10BASE-TX RJ-45 connector 3-23

19- and 24-inch racks 3-7

802.1D Spanning Tree 1-5

802.3z, IEEE C-1

802.3z 1000BASE-LX, IEEE standard 4-3, 4-11

airflow 1-9 to 1-11

attaching the cable guide 3-15

autonegotiation 1-4

BER 4-10

bit error rate

See BER

blower

see airflow

boot process

observing LEDs 3-23

brackets

See mounting brackets

Index

IN-2

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

cable guide

attaching 3-15

cabling

GBIC 4-4, 4-5

mode-conditioning 4-10

Catalyst 2948G-GE-TX switch

10/100/1000 ports 1-3

heat dissipation 2-2

illustration 1-2

management ports 1-8, 3-22

Catalyst 2948G switch

10/100 ports 1-2

heat dissipation 2-2

illustration 1-2

management ports 1-8, 3-22

Catalyst 2980G-A switch

heat dissipation 2-3

management ports 1-8, 3-22

referred to with Catalyst 2980G switch 1-1

Catalyst 2980G switch

10/100 ports 1-2

heat dissipation 2-3

illustration 1-2

CDP 1-5

CGMP 1-5

checking

shipping container contents (Catalyst 2948G

and 2980G switches) 3-4

shipping container contents (Catalyst

2948G-GE-TX) 3-5

checklist

rack-mount 3-7

site planning 2-7

Cisco Discovery Protocol

See CDP

Cisco Group Management Protocol

See CGMP

CLI 1-5

command-line interface

See CLI

commands

show port 4-9

configuration, patch cord (figure) 4-11

connecting

to 10/100/1000 ports 3-20 to 3-22

to 10/100 ports 3-20 to 3-22

to console serial port 3-22

to Ethernet management port 3-22

to SFP modules 4-12 to 4-16

connections, earth ground 2-3

connectors

10BASE-TX RJ-45 3-23

SC-type 4-8

console serial port

connecting 3-22

description 1-8

conventions, document xvii

IN-3

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

Index

cooling

See airflow

crossover cable

connecting to

10/100/1000 ports 3-21

10/100 ports 3-21

customer service, contacting 5-5

CWDM GBICs

see 1000BASE-X (CWDM) GBICs

CWDM SFP modules

see 1000BASE-X (CWDM) SFP modules

differential mode delay C-1

dimensions, chassis

Catalyst 2948G A-3

Catalyst 2948G-GE-TX A-7

Catalyst 2980G A-7

documentation, obtaining xxiii

document conventions xvii

EMC regulatory statements 3-2 to 3-4

Ethernet interfaces 1-4

Ethernet management port

connecting 3-22

Ethernet speeds

1000BASE-X 1-2

100BASE-T 1-4

10BASE-T 1-4

fan assembly 1-9

see airflow

features, switch 1-4 to 1-6

frequency, specifications A-3, A-5, A-7

GBICs

cabling 4-4

cabling restrictions 4-5

care and handling 4-6, 4-8, 4-9, 4-10

description 1-3

Ethernet interfaces 1-2

features 4-2

installing 4-6

maintenance guidelines 4-6, 4-8, 4-9 to 4-10

optical power 4-5

patch cord 4-10

port configuration 4-1

removing 4-9

speeds 1-2

Gigabit Interface Converter

See GBICs

Index

IN-4

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

grounding

holes 2-4

procedure 2-5 to 2-7

tools 2-4

heat dissipation

Catalyst 2948G-GE-TX switches 2-2, A-3, A-5

Catalyst 2948G switches 2-2, A-3, A-5

Catalyst 2980G switches 2-2, A-7

IEEE 802.1D Spanning Tree 1-5

IEEE 802.3z C-1

IEEE 802.3z 1000BASE-LX standard 4-3

installations

connecting a terminal to the console serial

and Ethernet management ports 3-22

rack-mounting

Catalyst 2948G and 2980G

switches 3-7 to 3-9

Catalyst 2948G-GE-TX

switches 3-10 to 3-15

tools required 3-6

table- or shelf-mounting

Catalyst 2948G-GE-TX switch 3-19

troubleshooting 5-1

wall-mounting 3-16

Catalyst 2948G-GE-TX switch 3-16 to 3-18

invisible radiation warning D-10 to D-11

laser radiation warning D-11 to D-13

laser transmission C-1

Layer 2 forwarding 1-4

LEDs

Link Status 1-8, A-2

power supply 3-19, 5-3

PSI 1-9

PWR 1-9

RPS 1-9

STATUS 1-9

Link Status LED 1-8, A-2

MAC addresses 1-4

management, software 1-5

management ports 1-8

10/100BASE-T 1-8

10BASE-T 1-8

console serial 1-8

MDIX connectors

See media-dependent interface crossed-over

connectors

IN-5

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

Index

Media Access Control addresses

See MAC addresses

media-dependent interface crossed-over

connectors 3-22

memory A-3, A-7

microprocessor A-3, A-7

MMF 4-4

mounting, table- or shelf- 3-19

mounting, wall-mounting 3-16

mounting brackets

Catalyst 2948G and 2980A

switches 3-7 to 3-8

Catalyst 2948G-GE-TX switch 3-10 to 3-14

multimode fiber-optic

See MMF

obtaining technical assistance xxiv

overfilled launch condition C-2

packaging materials B-1

packing list 3-5

PAgp

for port aggregation 1-5

patch cord

configuration (figure) 4-11

description 4-10

installing 4-11

mode-conditioning 4-4, 4-6

Port Aggregation Protocol

See PAgP

port cabling specifications 4-4

ports

locations 1-6

management 1-8

power

requirements 2-2

site planning 2-2

specifications

Catalyst 2948G-GE-TX switch A-3, A-5

Catalyst 2948G switch A-3, A-5

Catalyst 2980G switch A-7

troubleshooting 5-2

power supplies

connecting system ground 2-3

description 1-11

internal 1-11

LEDs 5-3

RPS 1-11

RPS 300 1-12

RPS 600 1-12

RPS 675 1-12

supported 1-6

troubleshooting 5-2, 5-3, 5-4

Index

IN-6

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

procedures

connecting system ground 2-3

connecting to an SFP module 4-12 to 4-16

connecting to the console serial port 3-22

connecting to the Ethernet management

port 3-22

installing a GBIC 4-6

installing a patch cord 4-11

removing a GBIC 4-9

repacking a switch B-1

protocols

802.1D Spanning Tree 1-5

CDP 1-5

CGMP 1-5

PAgP 1-5

SNMP 1-6

TFTP 1-5

VTP (Virtual Terminal Protocol) 1-5

PSI LED 1-9

PWR LED 1-9

qualified personnel warning D-9 to D-10

rack-mounting

Catalyst 2948G and 2980G

switches 3-7 to 3-9

Catalyst 2948G-GE-TX switch 3-10 to 3-15

rack-mounting kit 3-7

rack-mounting warning D-20 to D-24

Redundant Power System

See RPS

regulatory statements, EMC 3-2 to 3-4

Remote Monitoring

See RMON

repacking instructions B-1

returns B-1

RMON 1-5, 1-6

RPS 1-11, 5-4

See power supplies

RPS 300 1-12

RPS 300 warning D-13 to D-14

RPS 600 1-12

RPS 600 warning D-14 to D-15

RPS 675 1-12

RPS 675 warning D-15 to D-16

RPS LED 1-9

safety information warning D-7 to D-8

IN-7

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide

78-6286-05

Index

SFP modules

connecting to 4-12 to 4-16

shelf-mounting 3-19

shipping

container contents (Catalyst 2948G and

2980G switches) 3-4

container contents (Catalyst 2948G-GE-TX

switches) 3-5

instructions B-1

show port command 4-9

Simple Network Management Protocol

See SNMP

site planning

checklist 2-7

heat dissipation 2-2

small form-factor pluggable modules

see SFP modules 4-12

SNMP 1-5

software management 1-5

specifications

Catalyst 2948G switch A-2, A-5

Catalyst 2980G switch A-6

GBIC optical power 4-5

startup problems 5-3

STATUS LED 1-9

straight-through cable

connecting to

10/100/1000 ports 3-21

10/100 ports 3-21

switch installation warning D-18 to D-19

switch verification 3-23

system component level problems 5-2

table-mounting 3-19

technical assistance, obtaining xxiv

telco racks 3-7

terminals

connecting to the console serial port 3-22

connecting to the Ethernet management

port 3-22

tools, installation 3-6

troubleshooting

contacting customer service 5-5

getting started 5-2

identifying startup problems 5-3

initial boot 5-2

methodology 5-2

power supplies 5-2, 5-3, 5-4

verifying switch operation 3-23

virtual LANs

See VLANs

Virtual Terminal Protocol

See VTP (Virtual Terminal Protocol)

VLANs 1-5

Index

IN-8

Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide 78-6286-05

VLAN Trunk Protocol

See VTP (VLAN Trunk Protocol)

VTP (Virtual Terminal Protocol) 1-5

VTP (VLAN Trunk Protocol) 1-5

wall-mounting 3-16

warning

definition D-2 to D-4

invisible radiation D-10 to D-11

laser radiation D-11 to D-13

qualified personnel information D-9 to D-10

rack mounting D-20 to D-24

RPS 300 D-13 to D-14

RPS 600 D-14 to D-15

RPS 675 D-15 to D-16

safety information D-7 to D-8

switch installation D-18 to D-19

weight, chassis

Catalyst 2948G A-3

Catalyst 2948G-GE-TX A-5

Catalyst 2980G A-7

Cisco Systems 2948G Ge Tx Users Manual Gbook

2984G to the manual 596af074-99f0-40a8-8c84-af3b8ff0a809

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