Catalyst 2970 Switch

Hardware Installation Guide

November 2004

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

Text Part Number: OL-6422-01

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
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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
part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

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All other trademarks mentioned in this document or Website 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. (0406R)

Catalyst 2970 Switch Hardware Installation Guide

Copyright © 2004 Cisco Systems, Inc. All rights reserved.
 C O N T E N T S

Preface ix
Audience ix
Purpose ix
Organization x
Conventions x
Related Publications xv
Obtaining Documentation xvi
Cisco.com xvi
Documentation CD-ROM xvii
Ordering Documentation xvii
Documentation Feedback xviii
Obtaining Technical Assistance xviii
Cisco TAC Website xviii
Opening a TAC Case xix
TAC Case Priority Definitions xix
Obtaining Additional Publications and Information xx

CHAPTER 1 Product Overview 1-1

Features 1-1
Front Panel Description 1-3
10/100/1000 Ports 1-4
SFP Module Slots 1-5
LEDs 1-6
System LED 1-7

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RPS LED 1-8

Port LEDs and Modes 1-8
Rear Panel Description 1-11
Power Connectors 1-12
Internal Power Supply Connector 1-12
Cisco RPS Connector 1-13
Console Port 1-13
Management Options 1-13
Network Configurations 1-15

CHAPTER 2 Switch Installation 2-1

Preparing for Installation 2-1
Warnings 2-2
Installation Guidelines 2-5
Verifying Package Contents 2-7
Verifying Switch Operation 2-8
Installing the Switch 2-9
Rack-Mounting 2-9
Removing Screws from the Switch 2-10
Attaching Brackets to the Catalyst 2970 Switch 2-11
Mounting the Switch in a Rack 2-18
Attaching the Cable Guide 2-19
Wall-Mounting 2-20
Attaching the Brackets to the Switch for Wall-Mounting 2-20
Attaching the RPS Connector Cover 2-20
Mounting the Switch on a Wall 2-21
Table- or Shelf-Mounting 2-23
Installing and Removing SFP Modules 2-23
Installing SFP Modules into SFP Module Slots 2-24

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Removing SFP Modules from SFP Module Slots 2-26

Connecting to the 10/100/1000 Ports 2-27
Connecting to SFP Modules 2-30
Connecting to Fiber-Optic SFP Modules 2-30
Connecting to 1000BASE-T SFP Modules 2-31
Where to Go Next 2-34

CHAPTER 3 Troubleshooting 3-1

Understanding POST Results 3-1
Diagnosing Problems 3-2

APPENDIX A Technical Specifications A-1

APPENDIX B Connector and Cable Specifications B-1

Connector Specifications B-1
10/100/1000 Ports B-1
Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices B-2
Connecting to 1000BASE-T Devices B-2
SFP Module Ports B-3
Console Port B-4
Cable and Adapter Specifications B-5
Two Twisted-Pair Cable Pinouts B-5
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports B-5
Crossover Cable and Adapter Pinouts B-7
Identifying a Crossover Cable B-7
Adapter Pinouts B-7

APPENDIX C Configuring the Switch with the CLI-Based Setup Program C-1
Accessing the CLI C-2

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Accessing the CLI Through Express Setup C-2

Accessing the CLI Through the Console Port C-3
Taking Out What You Need C-4
Connecting to the Console Port C-5
Starting the Terminal Emulation Software C-6
Connecting to a Power Source C-7
Entering the Initial Configuration Information C-8
IP Settings C-8
Completing the Setup Program C-9

INDEX

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 Preface

Audience
This guide is for the networking or computer technician responsible for installing
the Catalyst 2970 switch, hereafter known as the switch. We assume that you are
familiar with the concepts and terminology of Ethernet and local area networking.

Purpose
This guide describes the hardware features of the Catalyst 2970 switch. It
describes the physical and performance characteristics of the switch, explains
how to install it, and provides troubleshooting information.
This guide does not describe system messages that you might receive or how to
configure your switch. For more information, refer to the switch software
configuration guide, the switch command reference, and the switch system
message guide on the Cisco.com Product Documentation home page. For
information about the standard Cisco IOS Release 12.1 or 12.2 commands, see
the Cisco IOS documentation set from the Cisco.com home page at Service and
Support > Technical Documents. On the Cisco Product Documentation home
page, select Release 12.1 or 12.2 from the Cisco IOS Software drop-down list.

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 Preface
Organization

Organization
This guide is organized into these chapters:
Chapter 1, “Product Overview,” is a physical and functional overview of the
Catalyst 2970 switch. It describes the switch ports, the standards they support,
and the switch LEDs.
Chapter 2, “Switch Installation,” contains the procedures on how to power the
switch, how to install the switch in a rack, on a wall, on a table, or on a shelf, and
how to make port connections.
Chapter 3, “Troubleshooting,” describes how to identify and resolve some of the
problems that might arise when installing the switch.
Appendix A, “Technical Specifications,” lists the physical and environmental
specifications for the switches.
Appendix B, “Connector and Cable Specifications,” describes the connectors,
cables, and adapters that can be used to connect to the switch.
Appendix C, “Configuring the Switch with the CLI-Based Setup Program,” has
an installation and setup procedure for a standalone switch.

Conventions
This document uses these conventions and symbols for notes, cautions, and
warnings:

Note Means reader take note. Notes contain helpful suggestions or references to
materials not contained in this manual.

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Conventions

Caution Means reader be careful. In this situation, you might do something that could
result in equipment damage or loss of data.

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.

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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Conventions

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

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Conventions

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

¡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

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Conventions

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

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Related Publications

Related Publications
You can order printed copies of documents with a DOC-xxxxxx= number. For
more information, see the “Obtaining Documentation” section on page xvi.
These documents provide complete information about the switch and are available
from this Cisco.com site:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2970/index.htm
• Catalyst 2970 Switch Getting Started Guide (order number DOC-7816685=)
• Regulatory Compliance and Safety Information for the Catalyst 2970 Switch
(order number DOC-7816686=)
• Release Notes for the Catalyst 2970 Switch (not orderable but available on
Cisco.com)

Note Before installing, configuring, or upgrading the switch, refer to the release notes
on Cisco.com for the latest information.

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Obtaining Documentation

• Catalyst 2970 Switch Software Configuration Guide (order number

DOC-7815462=)
• Catalyst 2970 Switch Command Reference (order number DOC-7815464=)
• Catalyst 2970 Switch System Message Guide (order number DOC-7815465=)
• Device manager online help (available on the switch)
• Getting Started with Cisco Network Assistant (not orderable but available on
Cisco.com)
• Catalyst 2970 Switch Hardware Installation Guide (order number
DOC-7815469=)
• Cisco Small Form-Factor Pluggable Modules Installation Notes (order
number DOC-7815160=)
• Cisco Small Form-Factor Pluggable Modules Compatibility Matrix (not
orderable but available on Cisco.com)
• Compatibility Matrix for 1000BASE-T Small Form-Factor Pluggable
Modules (not orderable but available on Cisco.com)
• Cisco CWDM GBIC and CWDM SFP Installation Notes (not orderable but
available on Cisco.com)

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

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Obtaining Documentation

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

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).

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Obtaining Technical Assistance

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.

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

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Obtaining Technical Assistance

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.
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.

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Obtaining Additional Publications and Information

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
• 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

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Obtaining Additional Publications and Information

• 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

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Obtaining Additional Publications and Information

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 C H A P T E R 1
Product Overview

The Catalyst 2970 switch—also referred to as the switch—is an Ethernet switch

to which you can connect devices like Cisco Wireless Access Point workstations,
Cisco IP Phones, and other network devices such as servers, routers, and other
switches. This chapter provides a functional overview of the Catalyst 2970
switch. These topics are included:
• Features, page 1-1
• Front Panel Description, page 1-3
• Rear Panel Description, page 1-11
• Management Options, page 1-13

Features
The Catalyst 2970 switch can be deployed as a backbone switch, aggregating
10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet traffic from other network
devices. See the switch software configuration guide for examples showing how
you might deploy the switch in your network.

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Features

These are the switch features:

• Hardware
– Catalyst 2970G-24T switch—24 10/100/1000 Ethernet ports
– Catalyst 2970G-24TS—24 10/100/1000 Ethernet ports and 4 small
form-factor pluggable (SFP) module slots
• The switches support these SFP modules:
– 1000BASE-SX
– 1000BASE-LX
– 1000BASE-ZX
– 1000BASE-T
– 100BASE-FX
– CWDM

Note When installed in Catalyst 2970 switches, 1000BASE-T SFP modules can
operate at 10, 100, or 1000 Mbps in full-duplex mode or at 10 or 100
Mbps in half-duplex mode.

• Configuration
– 10/100/1000 ports autonegotiate speed and support only full-duplex
mode.
• Switches are hot-swappable.
• Power redundancy
– Connection for optional Cisco RPS 675 redundant power system that
operates on AC input and supplies backup DC power output to the switch.

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Front Panel Description

Front Panel Description

The 10/100/1000 ports on the Catalyst 2970G-24T switch are grouped in pairs.
The first member of the pair (port 1) is above the second member (port 2) on the
left, as shown in Figure 1-1. Port 3 is above port 4, and so on.

Figure 1-1 Catalyst 2970G-24T Switch Front Panel

SYST
RPS
1 2
3 4
STAT 1X 5 6
7 8

87618
DUPLX 9 10
SPEED 11 12

MODE 11X

13 14
15 16
13X 17 18
2X 19 20
21 22
23 24

23X
Catalyst 2970
12X SERIES

14X

24X

1 10/100/1000 ports

The 10/100/1000 ports on the Catalyst 2970G-24TS switch are grouped in pairs.
The first member of the pair (port 1) is above the second member (port 2) on the
left, as shown in Figure 1-2. Port 3 is above port 4, and so on. The SFP module
slots are numbered 25 to 28.

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Front Panel Description

Figure 1-2 Catalyst 2970G-24TS Switch Front Panel

SYST
RPS
1 2
STAT 3 4
5 6

97400
1X
DUPLX 7 8
9 10
SPEED 11 12

MODE
11X

13 14 Catalyst 297
15 16
17 18
0 SERIES
13X
19 20
21 22
23 24

23X
12X

25
14X 26
27
28

24X

1
2

1 10/100/1000 ports 2 SFP module slots

10/100/1000 Ports
You can set the 10/100/1000 ports to operate at 10 Mbps, 100 Mbps, or
1000 Mbps in full-duplex mode. You can also set these ports for speed and duplex
autonegotiation in compliance with IEEE 802.3AB. (The default setting is
autonegotiate.) When set for autonegotiation, the port senses the speed and duplex
settings of the attached device and advertises its own capabilities. If the connected
device also supports autonegotiation, the switch port negotiates the best
connection (that is, the fastest line speed that both devices support and full-duplex
transmission if the attached device supports it) and configures itself accordingly.
In all cases, the attached device must be within 328 feet (100 meters).

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Front Panel Description

Note 100BASE-TX and 1000BASE-T traffic requires Category 5 cable. 10BASE-T

traffic can use Category 3 or Category 4 cables.

When connecting the switch to workstations, servers, routers, and Cisco IP

Phones, be sure that the cable is a straight-through cable. When connecting the
switch to switches or hubs, use a crossover cable. When using a straight-through
or crossover cable for 1000BASE-T connections, be sure to use a twisted
four-pair, Category 5 cable for proper operation. Pinouts for the cables are
described in Appendix B, “Connector and Cable Specifications.”

Note You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the
switch, regardless of the type of device on the other end of the connection.

The Auto-MDIX feature is enabled by default on switches running Cisco IOS

Release 12.2(18)SE or later. For releases between Cisco IOS
Release 12.1(14)EA1 and 12.2(18)SE, the Auto-MDIX feature is disabled by
default. For configuration information for this feature, see the switch software
configuration guide or the switch command reference.

SFP Module Slots

The Catalyst 2970 switch uses Gigabit Ethernet SFP modules to establish
fiber-optic connections. These transceiver modules are field-replaceable,
providing the uplink interfaces when inserted in an SFP module slot. You can use
the SFP modules for Gigabit uplink connections to other switches. You use
fiber-optic cables with LC or MT-RJ connectors to connect to a fiber-optic SFP
module. You use Category 5 cable with RJ-45 connectors to connect to a copper
SFP module.

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Front Panel Description

The Catalyst 2970 models support these Cisco SFP modules:

• 1000BASE-LX
• 1000BASE-SX
• 1000BASE-ZX
• 1000BASE-T
• 100BASE-FX
• CWDM
For more information about these SFP modules, see your SFP module
documentation.

LEDs
You can use the switch LEDs to monitor switch activity and its performance.
Figure 1-3 shows the switch LEDs and the Mode button that you use to select one
of the port modes.
All LEDs are visible through the GUI management applications—the Network
Assistant application for multiple switches and the device manager GUI for a
single switch. The switch software configuration guide describes how to use the
command-line interface (CLI) to configure and to monitor individual switches
and switch clusters.

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Front Panel Description

Figure 1-3 Catalyst 2970 Switch LEDs

SYST
RPS
1 2
3 4
STAT 1X 5 6
7 8
DUPLX 9 10
SPEED 11 12
1X
MODE 11X

2X

2X
12X

87619
1 2 3 4 5 6

1 Mode button 5 RPS LED

2 Speed LED 6 System LED
3 Duplex LED 7 Port LEDs
4 Status LED

System LED
The System LED shows whether the system is receiving power and is functioning
properly. Table 1-1 lists the LED colors and their meanings.

Table 1-1 System LED

Color System Status

Off System is not powered on.
Green System is operating normally.
Amber System is receiving power but is not functioning properly.

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For information on the System LED colors during the power-on self-test (POST),
see the “Connecting to the 10/100/1000 Ports” section on page 2-27.

RPS LED
The RPS LED shows the RPS status. Table 1-2 lists the LED colors and their
meanings.

Table 1-2 RPS LED

Color RPS Status

Off RPS is off or not properly connected.
Green RPS is connected and ready to provide back-up power, if required.
Blinking green RPS is connected but is unavailable because it is providing power to another device
(redundancy has been allocated to a neighboring device).
Amber The RPS is in standby mode or in a fault condition. Press the Standby/Active button
on the RPS, and the LED should turn green. If it does not, the RPS fan could have
failed. Contact Cisco Systems.
Blinking amber The internal power supply in a switch has failed, and the RPS is providing power
to the switch (redundancy has been allocated to this device).

For more information about the Cisco RPS 675, see the Cisco RPS 675 Redundant
Power System Hardware Installation Guide.

Port LEDs and Modes

Each RJ-45 port and SFP module slot has a port LED. These port LEDs, as a group
or individually, display information about the switch and about the individual
ports. The port modes determine the type of information displayed through the
port LEDs. Table 1-3 lists the mode LEDs and their associated port mode and
meaning.
To select or change a mode, press the Mode button until the desired mode is
highlighted. When you change port modes, the meanings of the port LED colors
also change. Table 1-4 explains how to interpret the port LED colors in different
port modes.

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Table 1-3 Port Mode LEDs

Mode LED Port Mode Description

STAT Port status The port status. This is the default mode.
DUPLX Port duplex mode The port duplex mode: full duplex or half duplex.
SPEED Port speed The port operating speed: 10, 100, or 1000 Mbps.

Table 1-4 Meaning of LED Colors in Different Modes on the Switch

Port Mode LED Color Meaning

STAT Off No link, or port was administratively shut down.
(port status) Green Link present.
Blinking green Activity. Port is transmitting or receiving data.
Alternating Link fault. Error frames can affect connectivity, and errors such as
green-amber excessive collisions, CRC errors, and alignment and jabber errors
are monitored for a link-fault indication.
Amber Port is blocked by Spanning Tree Protocol (STP) and is not
forwarding data.
Note After a port is reconfigured, the port LED can remain amber
for up to 30 seconds as STP checks the switch for possible
loops.
Blinking amber Port is blocked by STP and is transmitting or receiving packets.
DUPLX Off Port is operating in half duplex.
(duplex) Green Port is operating in full duplex.

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Table 1-4 Meaning of LED Colors in Different Modes on the Switch (continued)

Port Mode LED Color Meaning

SPEED 10/100/1000 ports
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
Blinking green Port is operating at 1000 Mbps.
SFP ports
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
Blinking green Port is operating at 1000 Mbps.
Note When installed in Catalyst 2970 switches, 1000BASE-T
SFP modules can operate at 10, 100, or 1000 Mbps in
full-duplex mode or at 10 or 100 Mbps in half-duplex mode.

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Rear Panel Description

Rear Panel Description

The Catalyst 2970G-24T switch rear panel has an AC power connector, an RPS
connector, and an RJ-45 console port. (See Figure 1-4.)

Figure 1-4 Catalyst 2970G-24T Switch Rear Panel

87620
CONSOLE

DC INP
UTS FOR
POWER REMOTE
RATING SPECIFI SUPPLY
100-240 ED IN
1.6A-0.9 V~ +12v MANUAL
A, 50-6 @13A
0 HZ

1 2 3 4

1 RJ-45 console port 3 AC power connector

2 Fan exhaust 4 RPS connector

The Catalyst 2970G-24TS switch rear panel has an AC power connector, an RPS
connector, and an RJ-45 console port. (See Figure 1-5.)

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 Chapter 1 Product Overview
Rear Panel Description

Figure 1-5 Catalyst 2970G-24TS Switch Rear Panel

DC INP
UTS FOR
POWER REMOTE
SUPPLY

97401
SPECIFI
ED IN
+12v MANUAL
@17a

CONSOLE

1 2 3 4

1 RJ-45 console port 3 AC power connector

2 Fan exhaust 4 RPS connector

Power Connectors
The switch is powered through the internal power supply. You can also connect
the Cisco RPS 675 to provide backup power if the switch internal power supply
should fail.

Note The Catalyst 2970 switch and the Cisco RPS 675 should be connected to the same
AC power source.

Internal Power Supply Connector

The internal power supply is an autoranging unit that supports input voltages
between 100 and 240 VAC. Use the supplied AC power cord to connect the AC
power connector to an AC power outlet.

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Management Options

Cisco RPS Connector

The Cisco RPS 675 has two output levels: –48 V and 12 V, with a total maximum
output power of 675 W. Use the supplied RPS connector cable to connect the RPS
to the switch.

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

The RPS is a redundant power system that can support six external network
devices and provides 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
the failed device, preventing loss of network traffic. For more information on the
Cisco RPS 675, see the Cisco RPS 675 Redundant Power System Hardware
Installation Guide.

Console Port
You can connect the switch to a PC by means of the console port and the supplied
RJ-45-to-DB-9 female cable. If you want to connect the switch console port to a
terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can
order a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco.
For console port and adapter pinout information, see the “Connector and Cable
Specifications” section on page B-1.

Management Options
The Catalyst 2970 switches offer several management options:
• Network Assistant
Cisco Network Assistant is a PC-based network management GUI
application optimized for LANs of small and medium-sized businesses. Cisco
Network Assistant offers centralized management of Cisco switches ranging
from the Catalyst 2950 switch to the Catalyst 4506 switch. Through a
user-friendly GUI, users can configure and manage switch clusters or
standalone switches.

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Management Options

Cisco Network Assistant is available at no cost and can be downloaded from

this URL:
http://www.cisco.com/go/networkassistant
For information on starting the Network Assistant application, see the Getting
Started with Cisco Network Assistant guide on Cisco.com.
• Device manager
You can use the device manager, which is in the switch memory, to manage
individual and standalone switches. Device manager is an easy-to-use web
interface that offers quick configuration and monitoring. You can access the
device manager from anywhere in your network through a web browser. For
more information, see the device manager online help.
• Cisco IOS command-line interface (CLI)
The switch CLI is based on Cisco IOS software and is enhanced to support
desktop-switching features. You can fully configure and monitor the switch
and switch cluster members from the CLI. You can access the CLI either by
connecting your management station directly to the switch console port or by
using Telnet from a remote management station. See the Catalyst 2970 Switch
Command Reference on Cisco.com for more information.
For setup instructions that use the CLI, go to Appendix C, “Configuring the
Switch with the CLI-Based Setup Program.”
• CiscoView application
The CiscoView device-management application displays the switch image
that you can use to set configuration parameters and to view switch status and
performance information. The CiscoView application, which you purchase
separately, can be a standalone application or part of a Simple Network
Management Protocol (SNMP) platform. See the CiscoView documentation
for more information.
• SNMP network management
You can manage switches from a SNMP-compatible management station that
is running platforms such as HP OpenView or SunNet Manager. The switch
supports a comprehensive set of Management Information Base (MIB)
extensions and four Remote Monitoring (RMON) groups. See the switch
software configuration guide on Cisco.com and the documentation that came
with your SNMP application for more information.

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Management Options

Network Configurations
See the switch software configuration guide on Cisco.com for an explanation of
network configuration concepts. The software configuration guide also provides
examples of network configurations that use the switch to create dedicated
network segments that are interconnected through Gigabit Ethernet connections.

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Management Options

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 C H A P T E R 2
Switch Installation

This chapter describes how to start your switch and how to interpret the power-on
self-test (POST) that ensures proper operation. It also describes how to install the
switch and how to make connections to the switch. Read the topics and perform
the procedures in this order:
• Preparing for Installation, page 2-1
• Verifying Switch Operation, page 2-8
• Installing the Switch, page 2-9
• Installing and Removing SFP Modules, page 2-23
• Connecting to the 10/100/1000 Ports, page 2-27
• Connecting to SFP Modules, page 2-30
• Where to Go Next, page 2-34

Preparing for Installation

This section covers these topics:
• Warnings, page 2-2
• Installation Guidelines, page 2-5
• Verifying Package Contents, page 2-7
• Verifying Switch Operation, page 2-8

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Preparing for Installation

Warnings
These warnings are translated into several languages in the Regulatory
Compliance and Safety Information for the Catalyst 2970 Switch document that
shipped with the switch.

Warning Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle.
Statement 100C

Warning Only trained and qualified personnel should be allowed to install, replace, or
service this equipment. Statement 1030

Warning Read the installation instructions before connecting the system to the power
source. Statement 1004

Warning Before working on equipment that is connected to power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects will heat up when
connected to power and ground and can cause serious burns or weld the metal
object to the terminals. Statement 43

Warning Do not stack the chassis on any other equipment. If the chassis falls, it can
cause severe bodily injury and equipment damage. Statement 48

Warning The plug-socket combination must be accessible at all times, because it serves
as the main disconnecting device. Statement 1019

Warning This equipment is intended to be grounded. Ensure that the host is connected to
earth ground during normal use. Statement 39

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Warning When installing or replacing the unit, the ground connection must always be
made first and disconnected last. Statement 1046

Warning To prevent the switch from overheating, do not operate it in an area that
exceeds the maximum recommended ambient temperature of 113°F (45°C). To
prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around
the ventilation openings. Statement 17B

Warning Do not work on the system or connect or disconnect cables during periods of
lightning activity. Statement 3

Warning Ultimate disposal of this product should be handled according to all national
laws and regulations. Statement 1040.

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

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

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Preparing for Installation

Warning To comply with safety regulations, mount switches on a wall with the front
panel facing up. Statement 266

Warning This unit is intended for installation in restricted access areas. A restricted
access area can be accessed only through the use of a special tool, lock and
key, or other means of security. Statement 1017

Warning Ethernet cables must be shielded when used in a central office environment.
Statement 171

Warning Avoid direct exposure to the laser beam. Statement 1012

Warning Invisible laser radiation may be emitted from disconnected fibers or

connectors. Do not stare into beams or view directly with optical instruments.
Statement 1051

Warning Class 1 laser product. Statement 1008

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Preparing for Installation

Installation Guidelines
When determining where to place the switch, be sure to observe these
requirements:
• For 10/100/1000 ports, including 1000BASE-T SFP module ports, cable
lengths from the switch to connected devices are up to 328 feet (100 meters).
• Table 2-1 lists the cable specifications for 1000BASE-SX, 1000BASE-LX,
and 1000BASE-ZX fiber-optic SFP module connections. Each port must
match the wave-length specifications on the other end of the cable, and the
cable must not exceed the stipulated cable length for reliable
communications.

Table 2-1 Fiber-Optic SFP Module Port Cabling Specifications

Modal
Wavelength Core Size Bandwidth
SFP Module (nanometers) Fiber Type (micron) (MHz/km) Cable Distance
1000BASE-SX 850 MMF 62.5 160 722 feet (220 m)
62.5 200 902 feet (275 m)
50 400 1640 feet (500 m)
50 500 1804 feet (550 m)
1000BASE-LX/LH 1300 MMF1 62.5 500 1804 feet (550 m)
50 400 1804 feet (550 m)
SMF 50 500 1804 feet (550 m)
9/10 — 32,810 feet (10 km)
1000BASE-ZX 1550 SMF 9/10 — 43.4 to 62 miles (70
to 100 km)2
100BASE-FX Min.: 1270 MMF 50/125 500 6,562 feet (2 km)
Typical: 1300 62.5/125
Max.: 1380

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Preparing for Installation

Table 2-1 Fiber-Optic SFP Module Port Cabling Specifications

Modal
Wavelength Core Size Bandwidth
SFP Module (nanometers) Fiber Type (micron) (MHz/km) Cable Distance
CWDM 1470, 1490, SMF 9/125 — 62 miles (100 km)
1510, 1530,
1550, 1570,
1590, 1610
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).
2. 1000BASE-ZX SFP modules can reach up to 62 miles (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.

Note When using shorter lengths of single-mode fiber cable, you might need to
insert an inline optical attenuator in the link to avoid overloading the
receiver.

When the fiber-optic cable span is less than 15.43 miles (25 km), you
should insert a 5-decibel (dB) or 10-dB inline optical attenuator between
the fiber-optic cable plant and the receiving port on the 1000BASE-ZX
SFP module at each end of the link.

• Operating environment is within the ranges listed in Appendix A, “Technical

Specifications.”
• Clearance to front and rear panels is such that
– Front-panel indicators can be easily read.
– Access to ports is sufficient for unrestricted cabling.
– Rear-panel power connector is within reach of an AC power receptacle.
• Cabling is away from sources of electrical noise, such as radios, power lines,
and fluorescent lighting fixtures. Make sure the cabling is safely away from
other devices that might damage the cables.

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Preparing for Installation

• Airflow around the switch and through the vents is unrestricted.

• Temperature around the unit does not exceed 113°F (45°C).

Note If the switch is installed in a closed or multirack assembly, the

temperature around it might be greater than normal room temperature.

Verifying Package Contents

Note Carefully remove the contents from the shipping container, and check each item
for damage. If any item is missing or damaged, contact your Cisco representative
or reseller for support. Return all packing material to the shipping container, and
save it.

The switch is shipped with these items:

• Catalyst 2970 Switch Getting Started Guide
• Regulatory Compliance and Safety Information for the Catalyst 2970 Switch
• AC power cord (AC-powered switches)
• One RJ-45-to-DB-9 adapter cable
• Mounting kit containing:
– Four rubber feet for mounting the switch on a table
– Two 19-inch rack-mounting brackets (also used for wall mounting)
– Six Phillips flat-head screws for attaching the brackets to the switch
– Four Phillips machine screws for attaching the brackets to a rack
– One cable guide and one black Phillips machine screw for attaching the
cable guide to one of the mounting brackets
– One Redundant Power System (RPS) connector cover (for wall
mounting)
– Two Phillips pan-head screws (for attaching the RPS cover)
– Four Phillips truss-head screws (for wall-mounting brackets)

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Preparing for Installation

Verifying Switch Operation

Before installing the switch in a rack, on a wall, or on a table or shelf, you should
power the switch and verify that the switch passes POST.
If your configuration has an RPS, connect the switch and the RPS to the same AC
power source. See the “Power Connectors” section on page 1-12, and see the
Cisco RPS documentation for more information.

Note Always put the RPS in standby mode when you are connecting devices to it and
in active mode during normal operation.

To power on the switch, connect one end of the AC power cord to the AC power
connector on the switch, and connect the other end of the power cord to an AC
power outlet.

Warning Attach only the Cisco RPS 675 (model PWR675-AC-RPS-N1=) to the RPS
receptacle.

As the switch powers on, it begins the power-on self test (POST), a series of tests
that runs automatically to ensure that the switch functions properly. POST lasts
approximately 1 minute. When the switch begins POST, the System, RPS, Status,
Duplex, and Speed LEDs turn green. The System LED blinks green, and the other
LEDs remain solid green.
When the POST completes successfully, the System LED remains green. The RPS
LED remains green for some time and then reflects the switch operating status.
The other LEDs turn off and then reflect the switch operating status. If a switch
fails POST, the System LED turns amber.

Note POST failures are usually fatal. Call Cisco Systems if your switch does not pass
POST.

After a successful POST, disconnect the power cord from the switch. Install the
switch in a rack, on a wall, on a table, or on a shelf as described in the “Installing
the Switch” section on page 2-9.

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 Chapter 2 Switch Installation
Installing the Switch

Installing the Switch

This section describes these installation procedures:
• Rack-Mounting, page 2-9
• Wall-Mounting, page 2-20
• Table- or Shelf-Mounting, page 2-23

Rack-Mounting

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 2 Switch Installation
Installing the Switch

To install the switch in a 19-inch or 24-inch rack (24-inch racks require optional
mounting hardware), follow the instructions described in these procedures:
• Removing Screws from the Switch, page 2-10
• Attaching Brackets to the Catalyst 2970 Switch, page 2-11
• Mounting the Switch in a Rack, page 2-18
• Attaching the Cable Guide, page 2-19

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 from Cisco. The kit part number is RCKMNT-1RU=.

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 2-1 shows how
to remove the chassis screws in a Catalyst 2970G-24T switch.

Figure 2-1 Removing Screws from the Catalyst 2970G-24T Switch

13 14

87642
15 16
13X 17 18
19 20
21 22
23 24

23X
Catalyst 29
70 SERIES

14X

24X

Figure 2-2 shows how to remove the chassis screws in a Catalyst 2970G-24TS
switch.

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-2 Removing Screws from the Catalyst 2970G-24TS Switch

Catalyst 29

97402
70 SERIES
23 24
24

25
26
27
28

Attaching Brackets to the Catalyst 2970 Switch

The bracket orientation and the brackets that you use depend on whether you are
attaching the brackets for a 19-inch or a 24-inch rack. For 19-inch racks, use
bracket part number 700-8209-01; for 24-inch racks, use bracket part number
700-13248-01. Figure 2-3 through Figure 2-14 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.

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-3 Attaching Brackets for 19-Inch Racks to a Catalyst 2970G-24T Switch, Front Panel
Forward

SYST
RPS
1 2
3 4
STAT 1X 5 6
7 8
DUPLX 9 10
SPEED 11 12
1X
MODE 11X

2X

2X
12X

87626
1 Phillips flat-head screws

Figure 2-4 Attaching Brackets for 19-Inch Racks to a Catalyst 2970G-24TS Switch, Front Panel
Forward

SYST
RPS
1 2
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1 Phillips flat-head screws

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-5 Attaching Brackets for 24-Inch Racks to a Catalyst 2970G-24T Switch, Front Panel
Forward

SYST
RPS
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3 4
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7 8
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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-6 Attaching Brackets for 24-Inch Racks to a Catalyst 2970G-24TS Switch, Front Panel
Forward

SYST
RPS
1 2
STAT 3 4
1X
5 6
DUPLX 7 8
9 10
SPEED 11 12

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1 Phillips flat-head screws

Figure 2-7 Attaching Brackets for 19-Inch Racks to a Catalyst 2970G-24T Switch, Rear Panel
Forward

DC INP
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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-8 Attaching Brackets for 19-Inch Racks to a Catalyst 2970G-24TS Switch, Rear Panel
Forward

DC IN
PUTS
FOR RE
POWE MO
SPECIFI R SUPPLY TE
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+12v MANU
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97405
1 Phillips flat-head screws

Figure 2-9 Attaching Brackets for 24-Inch Racks to a Catalyst 2970G-24T Switch, Rear Panel
Forward

DC INP
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SPECIF R SUPPLY
IED IN
+12v MANUA
@13A L

1
87629

1 Phillips flat-head screws

Catalyst 2970 Switch Hardware Installation Guide

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-10 Attaching Brackets for 24-Inch Racks to a Catalyst 2970G-24TS Switch, Rear Panel
Forward

DC IN
PUTS
FOR RE
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SPECIFI R SUPPLY TE
ED IN
+12v MANU
@17a AL

97406
1 Phillips flat-head screws

Figure 2-11 Attaching Brackets for 19-Inch Telco Racks to a Catalyst 2970G-24T Switch

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-12 Attaching Brackets for 19-Inch Telco Racks to a Catalyst 2970G-24TS Switch

Catalyst 29

97407
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1 Phillips flat-head screws

Figure 2-13 Attaching Brackets for 24-Inch Telco Racks to a Catalyst 2970G-24T Switch

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15 16
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19 20
21 22
23 24

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 Chapter 2 Switch Installation
Installing the Switch

Figure 2-14 Attaching Brackets for 24-Inch Telco Racks to a Catalyst 2970G-24TS Switch

97408
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1 Phillips flat-head screws

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 2-15.

Figure 2-15 Mounting the Catalyst 2970 Switch in a Rack

SYST
RPS
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3 4
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7 8
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Catalyst 2970 Switch Hardware Installation Guide

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 Chapter 2 Switch Installation
Installing the Switch

After the switch is mounted in the rack, you need to do these tasks to complete the
installation:
• Power on the switch. See the “Verifying Switch Operation” section on
page 2-8.
• Connect to a 10/100 or 10/100/1000 port and run Express Setup. See the
Catalyst 2970 Switch Getting Started Guide for instructions
• Connect to the front-panel ports. See the “Connecting to the 10/100/1000
Ports” section on page 2-27 and the “Connecting to SFP Modules” section on
page 2-30 to complete the installation.
For configuration instructions about using the CLI setup program, go to
Appendix C, “Configuring the Switch with the CLI-Based Setup Program.”

Attaching the Cable Guide

We recommend attaching the cable guide 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 shown in Figure 2-16 to attach the cable guide to the left or
right bracket.

Figure 2-16 Attaching the Cable Guide on the Catalyst 2970 Switch

SYST
RPS
1 2
3 4
STAT 1X 5 6
7 8
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MODE 11X

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OL-6422-01 2-19
 Chapter 2 Switch Installation
Installing the Switch

Wall-Mounting
To install the switch on a wall, follow the instructions in these procedures:
• Attaching the Brackets to the Switch for Wall-Mounting, page 2-20
• Attaching the RPS Connector Cover, page 2-20
• Mounting the Switch on a Wall, page 2-21

Attaching the Brackets to the Switch for Wall-Mounting

Figure 2-17 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.

Figure 2-17 Attaching the 19-inch Brackets for Wall-Mounting

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1 Phillips truss-head screws

Attaching the RPS Connector Cover

If you are not using an RPS with your switch, use the two Phillips pan-head
screws to attach the RPS connector cover to the back of the switch, as shown in
Figure 2-18.

Warning If an RPS is not connected to the switch, install an RPS connector cover on the
back of the switch.

Catalyst 2970 Switch Hardware Installation Guide

2-20 OL-6422-01
 Chapter 2 Switch Installation
Installing the Switch

Figure 2-18 Attaching the RPS Connector Cover on the Catalyst 2970 Switch

CONSOLE

DC INP
UTS FOR
POWER REMOTE
RATING SUPPLY
SPECIFI
100-200 ED IN
1.6A-0.9 V~ MANUAL
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0 @13A
HZ

87634
1 2 3

1 Phillips pan-head screws 3 RPS connector

2 RPS connector cover

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 2-19.

Warning To comply with safety regulations, mount the switches on a wall with the front
panel facing up.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 2-21
 Chapter 2 Switch Installation
Installing the Switch

Figure 2-19 Mounting the Switch on a Wall

S
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After the switch is mounted on the wall, you need to do these tasks to complete
the installation:
• Power on the switch. See the “Verifying Switch Operation” section on
page 2-8.
• Connect to a 10/100 or 10/100/1000 port and run Express Setup. See the
Catalyst 2970 Switch Getting Started Guide for instructions
• Connect to the front-panel ports. See the “Connecting to the 10/100/1000
Ports” section on page 2-27 and the “Connecting to SFP Modules” section on
page 2-30 to complete the installation.

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 Chapter 2 Switch Installation
Installing and Removing SFP Modules

For configuration instructions about using the CLI setup program, go to

Appendix C, “Configuring the Switch with the CLI-Based Setup Program.”

Table- or Shelf-Mounting
Follow these steps to install the switch on a table or shelf:

Step 1 Locate the adhesive strip with the rubber feet in the mounting-kit envelope. Attach
the four rubber feet to the recessed areas on the bottom of the unit.
Step 2 Place the switch on the table or shelf near an AC power source.
After the switch is mounted on the table, you need to do these tasks to complete
the installation:
• Power on the switch. See the “Verifying Switch Operation” section on
page 2-8.
• Connect to a 10/100 or 10/100/1000 port and run Express Setup. See the
Catalyst 2970 Switch Getting Started Guide for instructions
• Connect to the front-panel ports. See the “Connecting to the 10/100/1000
Ports” section on page 2-27 and the “Connecting to SFP Modules” section on
page 2-30 to complete the installation.
For configuration instructions about using the CLI setup program, go to
Appendix C, “Configuring the Switch with the CLI-Based Setup Program.”

Installing and Removing SFP Modules

These sections describe how to install and remove SFP modules. The modules are
inserted into the SFP module slots on the front of the Catalyst 2970G-24TS
switch. These field-replaceable modules provide uplink interfaces.
You can use any combination of SFP modules. See the Catalyst 2970 release notes
for the list of SFP modules that the Catalyst 2970G-24TS switch supports. Each
port must match the wave-length specifications on the other end of the cable, and
the cable must not exceed the stipulated cable length for reliable communications.
See the “Installation Guidelines” section on page 2-5 for cable stipulations for
SFP connections.

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 Chapter 2 Switch Installation
Installing and Removing SFP Modules

Use only Cisco SFP modules on the Catalyst 2970 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.
For detailed instructions on installing, removing, and cabling the SFP module, see
your SFP module documentation.

Installing SFP Modules into SFP Module Slots

Figure 2-20 shows an SFP module that has a bale-clasp latch.

Caution We strongly recommend that you do not install or remove fiber-optic SFP modules
with cables attached because of the potential damage to the cables, the cable
connector, or the optical interfaces in the SFP module. Disconnect all cables
before removing or installing an SFP module.

Removing and installing an SFP module can shorten its useful life. Do not remove
and insert SFP modules more often than is absolutely necessary.

Figure 2-20 SFP Module with a Bale-Clasp Latch

86575

To insert an SFP module into the module slot, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on
the chassis.
Step 2 Find the send (TX) and receive (RX) markings that identify the top side of the SFP
module.

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Chapter 2 Switch Installation
Installing and Removing SFP Modules

Note On some SFP modules, the send and receive (TX and RX) markings might
be replaced by arrows that show the direction of the connection, either
send or receive (TX or RX).

Step 3 Align the SFP module in front of the slot opening.

Step 4 Insert the SFP module into the slot until you feel the connector on the module snap
into place in the rear of the slot.

Figure 2-21 Installing an SFP Module into an SFP Module Slot

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Step 5 For fiber-optic SFP modules, remove the dust plugs from the optical ports, and
store them for later use.

Caution Do not remove the dust plugs from the fiber-optic SFP module port or the rubber
caps from 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.

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OL-6422-01 2-25
 Chapter 2 Switch Installation
Installing and Removing SFP Modules

Step 6 Insert the cable connector into the SFP module:

– For fiber-optic SFP modules, insert the LC or MT-RJ cable connector
into the SFP module.
– For copper SFP modules, insert the RJ-45 cable connector into the SFP
module.

Note When connecting to 1000BASE-T SFP modules, be sure to use a twisted

four-pair, Category 5 cable.

Removing SFP Modules from SFP Module Slots

To remove an SFP module from a module receptacle, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on
the chassis.
Step 2 Disconnect the cable from the SFP module.

Tip For reattachment, note which cable connector plug is send (TX) and which is
receive (RX).

Step 3 Unlock and remove the SFP module, as shown in Figure 2-22.
If the module has a bale-clasp latch, pull the bale out and down to eject the
module. If the bale-clasp latch is obstructed and you cannot use your index finger
to open it, use a small, flat-blade screwdriver or other long, narrow instrument to
open the bale-clasp latch.

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Chapter 2 Switch Installation
Connecting to the 10/100/1000 Ports

Figure 2-22 Removing a Bale-Clasp Latch SFP Module by Using a Flat-Blade

Screwdriver

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1 Bale clasp

Step 4 Grasp the SFP module between your thumb and index finger, and carefully
remove it from the module slot.
Step 5 For fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP
module to keep the optical interfaces clean.
Step 6 Place the removed SFP module in an antistatic bag or other protective
environment.

Connecting to the 10/100/1000 Ports

The switch 10/100/1000 ports configure themselves to operate at the speed of
attached devices. If the attached ports do not support autonegotiation, you can
explicitly set the speed and duplex parameters. Connecting devices that do not
autonegotiate or that have their speed and duplex parameters manually set can
reduce performance or result in no linkage.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 2-27
 Chapter 2 Switch Installation
Connecting to the 10/100/1000 Ports

To maximize performance, choose one of these methods for configuring the

Ethernet ports:
• Let the ports autonegotiate both speed and duplex.
• Set the port speed and duplex parameters on both ends of the connection.
Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T
devices:

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

Step 1 When connecting to workstations, servers, routers, and Cisco IP Phones, connect
a straight-through cable to an RJ-45 connector on the front panel. (See
Figure 2-23.) When connecting to switches or repeaters, use a crossover cable.
(See the “Cable and Adapter Specifications” section on page B-5 for cable-pinout
descriptions.)

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

four-pair, Category 5 cable.

Note You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the
switch, regardless of the type of device on the other end of the connection.

The Auto-MDIX feature is enabled by default on switches running Cisco IOS

Release 12.2(18)SE or later. For releases between Cisco IOS
Release 12.1(14)EA1 and 12.2(18)SE, the Auto-MDIX feature is disabled by
default. For configuration information for this feature, see the switch software
configuration guide or the switch command reference.

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 Chapter 2 Switch Installation
Connecting to the 10/100/1000 Ports

Step 2 Connect the other end of the cable to an RJ-45 connector on the other device. The
port LED turns on when both the switch and the connected device have
established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the
topology and searches for loops. This takes about 30 seconds, and then the port
LED turns green. If the port LED does not turn on, the device at the other end
might not be turned on, or there might be a cable problem or a problem with the
adapter installed in the attached device. See Chapter 3, “Troubleshooting,” for
solutions to cabling problems.
Step 3 Reconfigure and reboot the connected device if necessary.
Step 4 Repeat Steps 1 through 3 to connect each device.

Figure 2-23 Connecting to an Ethernet Port

SYST
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7 8
DUPLX 9 10
SPEED 11 12
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OL-6422-01 2-29
 Chapter 2 Switch Installation
Connecting to SFP Modules

Connecting to SFP Modules

This section describes how to connect to SFP modules. For instructions on how to
connect to fiber-optic SFP modules, see the “Connecting to Fiber-Optic SFP
Modules” section. For instructions on how to connect to copper 1000BASE-T SFP
modules, see the “Connecting to 1000BASE-T SFP Modules” section.
For instructions about how to install or remove an SFP module, see the “Installing
and Removing SFP Modules” section on page 2-23.

Connecting to Fiber-Optic SFP Modules

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

Warning Class 1 laser product. Statement 1008

Caution Do not remove the rubber plugs from the SFP module port or the rubber caps from
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 the SFP module, be sure that you understand the port and
cabling stipulations in the “Installation Guidelines” section on page 2-5 and in the
“SFP Module Slots” section on page 1-5. See Appendix B, “Connector and Cable
Specifications” for information about the LC on the SFP module.

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 (see Figure 2-24).
Step 3 Insert the other cable end into a fiber-optic receptacle on a target device.
Step 4 Observe the port status 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.

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 Chapter 2 Switch Installation
Connecting to SFP Modules

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 3, “Troubleshooting,” for solutions to cabling problems.

Figure 2-24 Connecting to a Fiber-Optic SFP Module Port

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1 LC connector

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

Connecting to 1000BASE-T SFP Modules

Follow these steps to connect a Category 5 cable to a 1000BASE-T SFP module:

Caution To prevent ESD damage, follow your normal board and component handling
procedures.

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OL-6422-01 2-31
 Chapter 2 Switch Installation
Connecting to SFP Modules

Step 1 When connecting to servers, workstations, and routers, insert a four twisted-pair,
straight-through cable in the RJ-45 connector. When connecting to switches or
repeaters, insert a four twisted-pair, crossover cable.

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

Category 5 cable.

Note You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the
switch, regardless of the type of device on the other end of the connection.

The Auto-MDIX feature is enabled by default on switches running Cisco IOS

Release 12.2(18)SE or later. For releases between Cisco IOS
Release 12.1(14)EA1 and 12.2(18)SE, the Auto-MDIX feature is disabled by
default. For configuration information for this feature, see the switch software
configuration guide or the switch command reference.

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Chapter 2 Switch Installation
Connecting to SFP Modules

Figure 2-25 Connecting to a 1000BASE-T SFP Module

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1 RJ-45 connector

Step 2 Insert the other cable end in an RJ-45 connector on a target device.
Step 3 Observe the port status 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 3, “Troubleshooting,” for solutions to cabling problems.
Step 4 If necessary, reconfigure and restart the switch or target device.

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 Chapter 2 Switch Installation
Where to Go Next

Where to Go Next
If the default configuration is satisfactory, the switch does not need further
configuration. You can use any of these management options to change the default
configuration:
• Start the device manager, which is in the switch memory, to manage
individual and standalone switches. The device manager is an easy-to-use
web interface that offers quick configuration and monitoring. You can access
the device manager from anywhere in your network through a web browser.
For more information, see the device manager online help.
• Start the Network Assistant application, which is described in the Getting
Started with Cisco Network Assistant guide. Through this GUI, you can
configure and monitor a switch cluster or an individual switch.
• Use the CLI from the console to configure the switch as a member of a cluster
or as an individual switch. See the Catalyst 2970 Switch Software
Configuration Guide and the Catalyst 2970 Switch Command Reference on
Cisco.com for information on using the CLI with a Catalyst 2970 switch.
• Start an SNMP application such as the CiscoView application.

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 C H A P T E R 3
Troubleshooting

The LEDs on the front panel provide troubleshooting information about the
switch. They show failures in the power-on self-test (POST), port-connectivity
problems, and overall switch performance. For a full description of the switch
LEDs, see the “LEDs” section on page 1-6.
You can also get statistics from the browser interface, from the command-line
interface (CLI), or from a Simple Network Management Protocol (SNMP)
workstation. See the software configuration guide, the switch command reference
guide on Cisco.com, or the documentation that came with your SNMP application
for details.
This chapter describes these topics for troubleshooting problems:
• Understanding POST Results, page 3-1
• Diagnosing Problems, page 3-2

Understanding POST Results

As the switch powers on, it begins POST, a series of tests that runs automatically
to ensure that the switch functions properly. When the switch begins POST, the
System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED
blinks green, and the other LEDs are solid green.
When the POST completes successfully, the System LED remains green. The RPS
LED remains green for some time and then reflects the RPS operating status. The
other LEDs turn off and then reflect the switch operating status.

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OL-6422-01 3-1
 Chapter 3 Troubleshooting
Diagnosing Problems

If a switch fails POST, the System LED turns solid amber. The RPS LED is either
solid or blinking amber. The other LEDs are off.

Note POST failures are usually fatal. Call Cisco Systems if your switch does not pass
POST.

Diagnosing Problems
The LEDs on the front panel provide troubleshooting information about the
switch. They show POST failures, port-connectivity problems, and overall switch
performance. For a full description of the switch LEDs, see the “LEDs” section
on page 1-6.
You can also get statistics from the browser interface, from the CLI, or from an
SNMP workstation. See the software configuration guide, the switch command
reference guide on Cisco.com, or the documentation that came with your SNMP
application for details.
You can access the Technical Support Website (http://www.cisco.com/tac) for a
list of known hardware problems and extensive troubleshooting documentation
including:
• Field notices
• Security advisories
• Troubleshooting resources
• Factory defaults
• Password recovery

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Chapter 3 Troubleshooting
Diagnosing Problems

• Recovery from corrupted or missing software

• Switch port problems
• Network interface cards
• Troubleshooting tools
Common switch problems fall into these categories:
• Poor performance
• No connectivity
• Corrupted software
Table 3-1 describes how to detect and resolve these problems.

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 Chapter 3 Troubleshooting
Diagnosing Problems

Table 3-1 Common Problems and Their Solutions

Symptom Possible Cause Resolution

Poor performance or excessive Duplex autonegotiation mismatch. See the switch software
errors configuration guide for
information on identifying
autonegotiation mismatches.
Cabling distance exceeded
• Port statistics show excessive • See the switch software
frame check sequence (FCS), configuration guide for
late-collision, or alignment information on displaying
errors. port statistics.

• For 10/100/1000BASE-T
connections:

– The distance between the • Reduce the cable length to

port and the attached device within the recommended
exceeds 328 feet (100 distances.
meters).
– If the switch is attached to a • See your repeater
repeater, the total distance documentation for cabling
between the two end guidelines.
stations exceeds the cabling
guidelines.
• For SFP module port • See your SFP module
connections: documentation for cabling
guidelines.
– The distance between the
SFP module port and the
attached device exceeds the
SFP module cabling
guidelines.
Bad adapter in attached device
• Excessive errors found in port • Run adapter card diagnostic
statistics. utility.
• STP checking for possible • Wait 30 seconds for the port
loops. LED to turn green.

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 Chapter 3 Troubleshooting
Diagnosing Problems

Table 3-1 Common Problems and Their Solutions (continued)

Symptom Possible Cause Resolution

No connectivity Incorrect or bad cable
These are results of no link at both
ends:
• A crossover cable was used • For the correct pinouts and
when a straight-through was the proper application of
required, or vice-versa. crossover vs.
straight-through cables, see
the “Two Twisted-Pair
Cable Pinouts” section on
page B-5.

• The cable is wired incorrectly. • Replace with a tested good

cable.
• A crossover or straight-through • For 1000BASE-T
cable is wired incorrectly. connections, be sure to use
a twisted four-pair,
Category 5 cable.
• STP checking for possible • Wait 30 seconds for the port
loops. LED to turn green.
Unreadable characters on the Incorrect baud rate. Reset the emulation software to
management console 9600 baud.
Amber system LED Fatal POST error detected. Contact Cisco Systems.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 3-5
 Chapter 3 Troubleshooting
Diagnosing Problems

Table 3-1 Common Problems and Their Solutions (continued)

Symptom Possible Cause Resolution

The switch port is placed in Bad or non-Cisco-approved SFP Remove the SFP module from
error-disabled state after SFP module. the switch, and replace it with a
module is inserted Cisco-approved module. Use the
errdisable recovery cause
gbic-invalid global
configuration command to
verify the port status, and enter a
time interval to recover from the
error-disable state.
See the switch command
reference guide for information
on the errdisable recovery
command.
Switch does not recognize the The SFP module might be installed Verify that the SFP module is
SFP module upside down. not installed upside down.
The SFP module does not snap into Remove the SFP module.
the slot. Inspect for physical damage to
the connector, the module, and
the module slot.
Replace the SFP module with a
known good SFP module.

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3-6 OL-6422-01
 A P P E N D I X A
Technical Specifications

This appendix lists the switch technical specifications in Table A-1 and
Table A-2.

Table A-1 Technical Specifications for the Catalyst 2970G-24T Switch

Environmental Ranges
Operating temperature 32 to 113°F (0 to 45°C)
Storage temperature –13 to 158°F (–25 to 70°C)
Relative humidity 10 to 85% (noncondensing)
Operating altitude Up to 10,000 ft (3049 m)
Storage altitude Up to 15,000 ft (4573 m)
Power Requirements
AC input voltage 100 to 240 VAC (autoranging)
1.6 A/0.9 A, 50 to 60 Hz
DC input voltage for RPS + 12 V @13 A
675
Power consumption 160 W, 545 BTUs per hour
Physical Dimensions
Weight 10 lb (4.55 kg)
Dimensions (H x D x W) 1.73 x 12.83 x 17.5 in. (4.39 x 32.59 x 44.45 cm)

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 A-1
 Appendix A Technical Specifications

Table A-2 Specifications for the Catalyst 2970G-24TS Switch

Environmental Ranges
Operating temperature 32 to 113°F (0 to 45°C)
Storage temperature –13 to 158°F (–25 to 70°C)
Relative humidity 10 to 85% (noncondensing)
Operating altitude Up to 10,000 ft (3049 m)
Storage altitude Up to 15,000 ft (4573 m)
Power Requirements
AC input voltage 100 to 240 VAC (autoranging)
2.3 A/1.5 A, 50 to 60 Hz
DC input voltages for + 12 V @17 A
RPS 675
Power consumption 190 W, 650 BTUs per hour
Power rating 0.190 kVA
Physical Dimensions
Weight 12.5 lb (5.68 kg)
Dimensions (H x D x W) 2.59 x 11.60 x 17.5 in. (6.59 x 29.46 x 44.45 cm)

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 A P P E N D I X B
Connector and Cable Specifications

This appendix describes the Catalyst 2970 switch ports and the cables and
adapters that you use to connect the switch to other devices.

Connector Specifications
These sections describe the connectors used with the Catalyst 2970 switch.

10/100/1000 Ports
The 10/100/1000 Ethernet ports on the Catalyst 2970 switch use standard RJ-45
connectors. Figure B-1 shows the pinout.

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OL-6422-01 B-1
 Appendix B Connector and Cable Specifications
Connector Specifications

Note You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the
switch, regardless of the type of device on the other end of the connection.

The Auto-MDIX feature is enabled by default on switches running Cisco IOS

Release 12.2(18)SE or later. For releases between Cisco IOS
Release 12.1(14)EA1 and 12.2(18)SE, the Auto-MDIX feature is disabled by
default. For configuration information for this feature, refer to the switch software
configuration guide or the switch command reference.

Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices

When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices,
such as servers, workstations, and routers, you can use a two or four twisted-pair,
straight-through cable wired for 10BASE-T and 100BASE-TX. Figure B-4 shows
the two twisted-pair, straight-through cable schematics. Figure B-6 shows the
four twisted-pair, straight-through cable schematics.
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices,
such as switches or repeaters, you can use a two or four twisted-pair, crossover
cable. Figure B-5 shows the two twisted-pair, crossover cable schematics.
Figure B-7 shows the four twisted-pair, crossover cable schematics.
You can use Category 3, 4, or 5 cabling when connecting to
10BASE-T-compatible devices. You must use Category 5 cabling when
connecting to 100BASE-TX-compatible devices.

Connecting to 1000BASE-T Devices

When connecting the ports to 1000BASE-T devices, such as servers,
workstations, and routers, you must use a four twisted-pair, Category 5,
straight-through cable wired for 10BASE-T, 100BASE-TX, and 1000BASE-T.
Figure B-6 shows the straight-through cable schematics.

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B-2 OL-6422-01
 Appendix B Connector and Cable Specifications
Connector Specifications

When connecting the ports to other devices, such as switches or repeaters, you
must use a four twisted-pair, Category 5, crossover cable. Figure B-7 shows the
crossover cable schematics.

Note Be sure to use a four twisted-pair, Category 5 cable when connecting to a

1000BASE-T-compatible device.

Note Use a straight-through cable to connect two ports only when one port is
designated with an X. Use a crossover cable to connect two ports when both ports
are designated with an X or when both ports do not have an X.

Figure B-1 10/100/1000 Port Pinouts

Pin Label 1 2 3 4 5 6 7 8

1 TP0+
2 TP0-
3 TP1+
4 TP2+
5 TP2-
6 TP1-
7 TP3+

60915
8 TP3-

SFP Module Ports

The Catalyst 2970 switch uses SFP modules for fiber-optic and copper uplink
ports. Refer to the Catalyst 2970 release notes for a list of supported SFP modules.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 B-3
 Appendix B Connector and Cable Specifications
Connector Specifications

Figure B-2 Fiber-Optic SFP Module LC Connector

58476
Warning Invisible laser radiation may be emitted from disconnected fibers or
connectors. Do not stare into beams or view directly with optical instruments.

Figure B-3 Copper SFP Module RJ-45 Connector

Pin Label 1 2 3 4 5 6 7 8

1 TP0+
2 TP0-
3 TP1+
4 TP2+
5 TP2-
6 TP1-
7 TP3+

60915
8 TP3-

Console Port
The console port uses an 8-pin RJ-45 connector, which is described in Table B-1
and Table B-2. The supplied RJ-45-to-DB-9 adapter cable is used to connect the
console port of the switch to a console PC. You need to provide a RJ-45-to-DB-25
female DTE adapter if you want to connect the switch console port to a terminal.
You can order a kit (part number ACS-DSBUASYN=) containing that adapter
from Cisco. For console port and adapter pinout information, see Table B-1 and
Table B-2.

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B-4 OL-6422-01
 Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Cable and Adapter Specifications

These sections describe the cables and adapters used with Catalyst 2970 switches.

Two Twisted-Pair Cable Pinouts

Figure B-4 and Figure B-5 show the schematics of two twisted-pair cables for
connecting to 10BASE-T- and 100BASE-TX-compatible devices.

Figure B-4 Two Twisted-Pair Straight-Through Cable Schematic

Switch Router or PC
3 TD+ 3 RD+
6 TD– 6 RD–

1 RD+ 1 TD+
H5578

2 RD– 2 TD–

Figure B-5 Two Twisted-Pair Crossover Cable Schematic

Switch Switch
3 TD+ 3 TD+
6 TD– 6 TD–

1 RD+ 1 RD+
H5579

2 RD– 2 RD–

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports

Figure B-6 and Figure B-7 show the schematics of four twisted-pair cables for
10/100/1000 ports on Catalyst 2970 switches.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 B-5
 Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Figure B-6 Four Twisted-Pair Straight-Through Cable Schematic for

10/100/1000 Ports

Switch Router or PC
1 TPO+ 1 TP1+
2 TPO- 2 TP1-
3 TP1+ 3 TPO+
6 TP1- 6 TPO-

4 TP2+ 4 TP3+
5 TP2- 5 TP3-
7 TP3+ 7 TP2+

65272
8 TP3- 8 TP2-

Figure B-7 Four Twisted-Pair Crossover Cable Schematics for 10/100/1000

Ports

Switch Switch
1 TPO+ 1 TP0+
2 TPO- 2 TP0-
3 TP1+ 3 TP1+
6 TP1- 6 TP1-

4 TP2+ 4 TP2+
5 TP2- 5 TP2-
7 TP3+ 7 TP3+
65274

8 TP3- 8 TP3-

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B-6 OL-6422-01
 Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Crossover Cable and Adapter Pinouts

This section describes how to identify a crossover cable and also describes the
adapter pinouts.

Identifying a Crossover Cable

To identify a crossover cable, compare the two modular ends of the cable. Hold
the cable ends side-by-side, with the tab at the back. The wire connected to the
pin on the outside of the left plug should be the same color as the wire connected
to the pin on the outside of the right plug. (See Figure B-8.)

Figure B-8 Identifying a Crossover Cable

Pin 1 on one connector and

pin 8 on the other connector
should be the same color.

Pin 1 Pin 8

H10632

Adapter Pinouts
Table B-1 lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable,
and the console device.

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OL-6422-01 B-7
 Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Table B-1 Console Port Signaling Using a DB-9 Adapter

Switch
Console RJ-45-to-DB-9 Console
Port (DTE) Terminal Adapter Device
Signal DB-9 Pin Signal
RTS 8 CTS
DTR 6 DSR
TxD 2 RxD
GND 5 GND
GND 5 GND
RxD 3 TxD
DSR 4 DTR
CTS 7 RTS

Table B-2 lists the pinouts for the console port, RJ-45-to-DB-25 female DTE
adapter, and the console device.

Note The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can
order a kit (part number ACS-DSBUASYN=) containing this adapter from Cisco.

Table B-2 Console Port Signaling Using a DB-25 Adapter

Switch
Console RJ-45-to-DB-25 Console
Port (DTE) Terminal Adapter Device
Signal DB-25 Pin Signal
RTS 5 CTS
DTR 6 DSR
TxD 3 RxD
GND 7 GND
GND 7 GND

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Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Table B-2 Console Port Signaling Using a DB-25 Adapter (continued)

Switch
Console RJ-45-to-DB-25 Console
Port (DTE) Terminal Adapter Device
Signal DB-25 Pin Signal
RxD 2 TxD
DSR 20 DTR
CTS 4 RTS

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OL-6422-01 B-9
 Appendix B Connector and Cable Specifications
Cable and Adapter Specifications

Catalyst 2970 Switch Hardware Installation Guide

B-10 OL-6422-01
 A P P E N D I X C
Configuring the Switch with the
CLI-Based Setup Program

This appendix provides a command-line interface (CLI)-based setup procedure

for a standalone switch. For product overview information, see Chapter 1,
“Product Overview.” Before connecting the switch to a power source, review the
safety warnings in Chapter 2, “Switch Installation.” For installation procedures
on rack-mounting your switch, connecting to the switch ports, or connecting to
the small form-factor pluggable (SFP) modules, see Chapter 2, “Switch
Installation.”
These steps describe how to do a simple installation:
1. Accessing the CLI, page C-2
2. Taking Out What You Need, page C-4
3. Connecting to the Console Port, page C-5
4. Starting the Terminal Emulation Software, page C-6
5. Connecting to a Power Source, page C-7
6. Entering the Initial Configuration Information, page C-8

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 Appendix C Configuring the Switch with the CLI-Based Setup Program
Accessing the CLI

Accessing the CLI

For an unconfigured switch, you can access the CLI through Express Setup or
through the console port.

Accessing the CLI Through Express Setup

Note Express Setup is supported on switches running Cisco IOS Release 12.1(14)EA1
or later. If you are installing a new switch, refer to the Cisco IOS release label on
the rear panel of the switch to determine the release.

For switches running releases earlier than Cisco IOS Release 12.1(14)EA1, go to
the “Taking Out What You Need” section on page C-4.

You can access the CLI on an unconfigured switch by placing the switch in
Express Setup mode and then connecting an Ethernet port of the switch to the
Ethernet port of your PC or workstation. To put the switch into Express Setup
mode, follow the steps described in the Catalyst 3750 Switch Getting Started
Guide for powering on the switch and using Express Setup.
After the switch is in Express Setup mode, open a Telnet session to the switch by
using the IP address 10.0.0.1, and enter the setup user EXEC command. See these
sections in this chapter to then configure the switch by using the CLI:
• Entering the Initial Configuration Information, page C-8
• Completing the Setup Program, page C-9
After you have entered the configuration information for the switch, save it to
flash memory by using the write memory privileged EXEC command.

Note While in Express Setup mode, the IP address 10.0.0.1 remains active on the switch
until you enter the write memory command. You lose the Telnet connection after
entering the write memory command.

For more information about using the CLI, refer to the command reference for this
release.

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C-2 OL-6422-01
 Appendix C Configuring the Switch with the CLI-Based Setup Program
Accessing the CLI

Accessing the CLI Through the Console Port

You can access the CLI on a configured or unconfigured switch by connecting the
console port of the switch to the serial port on your PC or workstation and
accessing the switch through a Telnet session.
To access the switch through the console port, follow these steps:
• “Taking Out What You Need” section on page C-4.
• “Connecting to the Console Port” section on page C-5
• “Starting the Terminal Emulation Software” section on page C-6
• “Connecting to a Power Source” section on page C-7
• “Entering the Initial Configuration Information” section on page C-8

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OL-6422-01 C-3
 Appendix C Configuring the Switch with the CLI-Based Setup Program
Taking Out What You Need

Taking Out What You Need

Remove the items shown in Figure C-1 from the shipping container:

Figure C-1 The Catalyst 2970 Switch, Adapter Cable, and AC Power Cord

1 SYST
RPS

STAT
1 2
3 4
1X
5 6
DUPLX 7 8
9 10
SPEED 11 12

MODE
11X

13 14 Catalyst 2970
15 16 SERIES
13X 17 18
19 20
21 22
23 24

23X
12X

25
14X 26
27
28

24X

97461
3

1 Catalyst 2970 switch 3 AC power cord

2 RJ-45-to-DB-9 adapter cable

Note You need to provide the Category 5 straight-through cables to connect the switch
ports to other Ethernet devices.

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C-4 OL-6422-01
Appendix C Configuring the Switch with the CLI-Based Setup Program
Connecting to the Console Port

Note You can use the mdix auto interface configuration command in the CLI to enable
the automatic medium-dependent interface crossover (Auto-MDIX) feature.
When the Auto-MDIX feature is enabled, the switch detects the required cable
type for copper Ethernet connections and configures the interfaces accordingly.
Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the
switch, regardless of the type of device on the other end of the connection.

The Auto-MDIX feature is enabled by default on switches running Cisco IOS

Release 12.2(18)SE or later. For releases between Cisco IOS
Release 12.1(14)EA1 and 12.2(18)SE, the Auto-MDIX feature is disabled by
default. For configuration information for this feature, refer to the switch software
configuration guide or the switch command reference.

Connecting to the Console Port

You can use the console port to perform the initial configuration. To connect the
switch console port to a PC, use the supplied RJ-45-to-DB-9 adapter cable.
Follow these steps to connect the PC or terminal to the switch:

Step 1 Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into
the console port on the rear of a switch, as shown in Figure C-2.
Step 2 Attach the DB-9 female DTE of the adapter cable to a PC serial port, or attach an
appropriate adapter to the terminal.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 C-5
 Appendix C Configuring the Switch with the CLI-Based Setup Program
Starting the Terminal Emulation Software

Figure C-2 Connecting a Switch to a PC

DC INPUT
S
POWE FOR REMO
SPECIFIEDR SUPP TE
LY
+12v IN MANUAL
@17a

CONSOLE

3
2

97460
1 Catalyst 2970 switch 3 RJ-45-to-DB-9 adapter cable
2 Power cord

Starting the Terminal Emulation Software

Before you power on the switch, start the terminal emulation session so that you
can see the output display from the power-on self-test (POST).
The terminal-emulation software—frequently a PC application such as
Hyperterminal or ProcommPlus—makes communication between the switch and
your PC or terminal possible.

Step 1 Start the terminal-emulation program if you are using a PC or terminal.

Step 2 Start a terminal-emulation session.

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C-6 OL-6422-01
Appendix C Configuring the Switch with the CLI-Based Setup Program
Connecting to a Power Source

Step 3 Configure the baud rate and character format of the PC or terminal to match these
console port default characteristics:
• 9600 baud
• 8 data bits
• 1 stop bit
• No parity
• None (flow control)

Connecting to a Power Source

Follow these steps to connect to a power source:

Step 1 Connect one end of the supplied AC power cord to the power connector on a
switch rear panel. See Figure C-2.
Step 2 Connect the other end of the power cable to a grounded AC outlet.

Note If you are connecting the switch to a Cisco redundant power system (RPS), refer
to the documentation that shipped with your RPS.

As the switch powers on, it begins the power-on self test (POST), a series of tests
that runs automatically to ensure that the switch functions properly. POST lasts
approximately 1 minute. When the switch begins POST, the System, RPS, Status,
Duplex, and Speed LEDs turn green. The System LED blinks green, and the other
LEDs remain solid green.
When the POST completes successfully, the System LED remains green. The RPS
LED remains green for some time and then reflects the switch operating status.
The other LEDs turn off and then reflect the switch operating status. If a switch
fails POST, the System LED turns amber.

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 C-7
 Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information

Note POST failures are usually fatal. Call Cisco Systems if your switch does not pass
POST.

If you started the terminal emulation program before you powered on your switch,
the PC or terminal displays the bootloader sequence. You need to press Enter to
display the setup program prompt.

Entering the Initial Configuration Information

To set up the switch, you need to complete the setup program, which runs
automatically after the switch is powered up. You must assign an IP address and
other configuration information necessary for the switch to communicate with the
local routers and the Internet. This information is also required if you plan to use
the Network Assistant to configure and manage the switch.

IP Settings
You will need this information from your network administrator before you
complete the setup program:
• Switch IP address
• Subnet mask (IP netmask)
• Default gateway (router)
• Enable secret password
• Enable password
• Telnet password

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C-8 OL-6422-01
 Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information

Completing the Setup Program

Follow these steps to complete the setup program and to create an initial
configuration for the switch:

Step 1 Enter Yes at these two prompts.

Would you like to enter the initial configuration dialog? [yes/no]:
yes

At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.

Basic management setup configures only enough connectivity

for management of the system, extended setup will ask you
to configure each interface on the system.

Would you like to enter basic management setup? [yes/no]: yes

Step 2 Enter a host name for the switch, and press Return.
On a command switch, the host name is limited to 28 characters; on a member
switch to 31 characters. Do not use -n, where n is a number, as the last character
in a host name for any switch.
Enter host name [Switch]: host_name

Step 3 Enter an enable secret password, and press Return.

The password can be from 1 to 25 alphanumeric characters, can start with a
number, is case sensitive, allows spaces, but ignores leading spaces. The secret
password is encrypted and the enable password is in plain text.
Enter enable secret: secret_password

Step 4 Enter an enable password, and press Return.

Enter enable password: enable_password

Step 5 Enter a virtual terminal (Telnet) password, and press Return.

The password can be from 1 to 25 alphanumeric characters, is case sensitive,
allows spaces, but ignores leading spaces.
Enter virtual terminal password: terminal-password

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 Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information

Step 6 (Optional) Configure Simple Network Management Protocol (SNMP) by

responding to the prompts. You can also configure SNMP later through the CLI,
the device manager, or the Network Assistant application. To configure SNMP
later, enter no.
Configure SNMP Network Management? [no]: no

Step 7 Enter the interface name (physical interface or VLAN name) of the interface that
connects to the management network, and press Return. For this release, always
use vlan1 as that interface.
Enter interface name used to connect to the
management network from the above interface summary: vlan1

Step 8 Configure the interface by entering the switch IP address and subnet mask and
pressing Return. The IP address and subnet masks shown below are examples.
Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: 10.4.120.106
Subnet mask for this interface [255.0.0.0]: 255.0.0.0

Step 9 Enter Y to configure the switch as the cluster command switch. Enter N to
configure it as a member switch or as a standalone switch.
If you enter N, the switch appears as a candidate switch in the Network Assistant
GUI. You can configure the switch as a command switch later through the CLI,
the device manager, or the Network Assistant application. To configure it later,
enter no.
Would you like to enable as a cluster command switch? [yes/no]: no

You have now completed the initial configuration of the switch, and the switch
displays its initial configuration. This is an example of output that appears:
The following configuration command script was created:
hostname switch1
enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1
enable password enable_password
line vty 0 15
password terminal-password
no snmp-server
!
no ip routing

!
interface Vlan1
no shutdown

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Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information

ip address 10.4.120.106 255.0.0.0

!
interface FastEthernet1/0/1
!
interface FastEthernet1/0/2

interface FastEthernet1/0/3
!
...<output abbreviated>
!
interface GigabitEthernet2/0/28
!
end

Step 10 These choices are displayed:

[0] Go to the IOS command prompt without saving this config.

[1] Return back to the setup without saving this config.

[2] Save this configuration to nvram and exit.

If you want to save the configuration and use it the next time the switch reboots,
save it in NVRAM by selecting option 2.

Enter your selection [2]:2

Make your selection, and press Return.

After you complete the setup program, the switch can run the default
configuration that you created. If you want to change this configuration or want
to perform other management tasks, use one of these tools:
• Command-line interface (CLI)
• Network Assistant (for one or more switches)
To use the CLI, enter commands at the Switch> prompt through the console port
by using a terminal program or through the network by using Telnet. For
configuration information, see the switch software configuration guide or the
switch command reference.
To use the Network Assistant, see the Getting Started with Cisco Network
Assistant guide on Cisco.com.

Catalyst 2970 Switch Hardware Installation Guide

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 Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information

Catalyst 2970 Switch Hardware Installation Guide

C-12 OL-6422-01
 I N D EX

Numerics

10/100/1000 ports
cable lengths 2-5
connecting to 2-28
connectors and cables B-1 to B-3
described 1-4
illustrated 1-3
19- and 24-inch racks 2-10

AC power
connecting to 2-8
connector 1-12
specifications A-1 to A-2
adapter pinouts, terminal
RJ-45-to-DB-25 B-8
RJ-45-to-DB-9 B-8
auto-MDIX 1-5, 2-28, 2-32, B-2, C-5
autonegotiation 1-4

Catalyst 2970 Switch Hardware Installation Guide

OL-6422-01 IN-1
 Index

Cisco RPS
B
See RPS
brackets CiscoView 1-14
See mounting brackets CLI 1-14
accessing by using Express Setup C-2
accessing through console port C-3
C
command-line interface
cable guide, attaching 2-19 See CLI
cable lengths 2-5 configuration examples, network 1-1
cables connecting
crossover to 10/100/1000 ports 2-27
connecting to B-2 to console port B-4
four twisted-pair pinout, 1000BASE-T to SFP modules 2-30 to 2-33
ports B-6 connecting to the console port C-5
identifying B-7 connection procedures 2-27 to 2-33
two twisted-pair pinout, 10/100 ports B-5 connectivity problems, solving 3-3
SFP module connectors and cables
1000BASE-T module 2-32 10/100/1000 ports B-1 to B-3
straight-through console port B-4 to B-9
connecting to B-2 power (AC and RPS) 1-12
four twisted-pair pinout, 1000BASE-T SC connectors B-3
ports B-6
SFP module ports B-3
two twisted-pair pinout B-5
console port
cabling
connecting to C-5
10/100/1000 ports 1-5, 2-27
connectors and cables B-4 to B-9
auto-MDIX 1-5, 2-28, 2-32, B-2, C-5
described 1-13
pinouts B-5
conventions, document x
See also connectors and cables
crossover cable B-7
cautions x
connecting to
Cisco IP Phones, connecting to 2-28

Catalyst 2970 Switch Hardware Installation Guide

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 Index

1000BASE-T SFP module ports 2-32 LEDs 1-6 to 1-10

connectivity problems 3-5 SFP module ports 1-6
pinout
four twisted-pair, 1000BASE-T ports B-6
H

HP OpenView 1-14
D
humidity, relative A-1
DC power
RPS 1-2
I
Device Manager xvi, 1-14
to configure switch 2-34 installation
diagnosing problems 3-3 assigning the IP Address C-8
document conventions x connecting to a power source C-7
duplex LED 1-9 rack mounting 2-10 to 2-19
site requirements 2-5
starting the terminal emulation software C-6
E
table or shelf mounting 2-23
electrical noise, avoiding 2-6 wall mounting 2-20
examples, network configuration 1-1 See also procedures
Express Setup installing SFP modules 2-24 to 2-26
accessing CLI by using C-2 IOS command-line interface 1-14

F L

features 1-1 to 1-2 LEDs

front panel color meanings 1-8
10/100 /1000 ports 1-4 duplex 1-9
clearance 2-6 front panel 1-7
description 1-3 to 1-10 interpreting 1-8

Catalyst 2970 Switch Hardware Installation Guide

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 Index

port 1-8
port mode 1-8 to 1-10
POST results 3-2
RPS 1-8
speed 1-9
STATUS 1-9
system 1-7
troubleshooting with 3-2

Mode button 1-6

mounting, table or shelf 2-23
mounting, wall mounting 2-20
mounting brackets
attaching 2-11 to 2-18
rack mount 2-18

Network Assistant 1-13

getting started guide xvi
to configure switch 2-34
network configuration examples 1-1
noise, electrical 2-6

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 Index

results 3-1 to 3-2

P
running at powerup 2-8
packing list 2-7 power
performance problems, solving 3-3 connecting to 2-8
pinouts connectors 1-11, 1-12
10/100 ports B-3 power on 2-8
adapters B-7 power supply
console port B-8, B-8 to B-9 AC power outlet 1-12
crossover cable B-7 RPS connector 1-12
crossover cables procedures
four twisted-pair, 1000BASE-T ports B-6 connection 2-27 to 2-33
two twisted-pair 10/100 ports B-5 installation 2-9 to 2-23
RJ-45-to-DB-25 terminal adapter B-8 publications, related xv
RJ-45-to-DB-9 terminal adapter B-7 to B-8
SFP module ports B-3
straight-through cables
R
four twisted-pair 1000BASE-T ports B-6 rack mounting 2-10 to 2-19
two twisted-pair B-5 rear panel
port LEDs 1-8 clearance 2-6
port modes description 1-11 to 1-13
changing 1-6 redundant power supply
LEDs 1-8, 1-9 See RPS
See also Mode button removing SFP modules 2-26 to 2-27
ports RJ-45 connector, console port B-4
10/100/1000 1-3, 1-4 RJ-45 console port 1-11
numbering of 10/100/1000 1-4 RPS
numbering of SFP module ports 1-3 connecting to 2-8
POST connector 1-13
LEDs 3-2 LED 1-8

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 Index

switch powering on 2-8

S
system LED 1-7
safety 2-2
SC connector B-3
SFP modules
T
1000BASE-LX 1-6 table mounting 2-23
1000BASE-SX 1-6 technical specifications A-1
1000BASE-T 1-6 telco racks 2-10
supported speeds 1-10 Telnet, and accessing the CLI 1-14
1000BASE-ZX 1-6 temperature, operating A-1
100BASE-FX 1-6 terminal emulation software C-6
bale-clasp latch troubleshooting 3-1 to 3-5
removal 2-26
connecting to 2-30 to 2-33
connectors B-3 W
CWDM 1-6 wall mounting 2-20
described 1-6 warnings
installation 2-24 to 2-26 defined x
shelf mounting 2-23 installation 2-2
Simple Network Management Protocol
See SNMP
SNMP network management platforms 1-14
software switch management 1-13
specifications A-1
straight-through cable
pinout
four twisted-pair 1000BASE-T ports B-6
two twisted-pair 10/100 ports B-5
SunNet Manager 1-14

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