Cisco 2948G - Catalyst Switch, Catalyst 2984G, Catalyst 2948G-GE-TX, Catalyst 2980G Hardware Installation Manual

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

October 2003

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

Customer Order Number: DOC-786286= Text Part Number: 78-6286-05

THE SPECIFICAT IONS AND IN FORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS I N T HI S MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR T HE A CCOMPANYING PRODUCT ARE SET FOR TH IN T HE 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 h armful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC comp liance of Cl ass B devices: The equipm ent descr ibed in thi s manual gener ates and may radi ate 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 wi ll not occur in a particular installation.

Modifying the equipm ent wit hout C isco’s written autho rizatio n may re sul t in the equipm ent no lon ger comply ing with FC C re quirem ents for Class A or Class B digital devices. In that event, your right to use the equ ipment m ay be limit ed by FCC regulati ons, and yo u may be r equi red t o correct any interference to radio or television communi cations at you r own expense.

You can det ermine wh ether your equipmen t is causing interf erence by turning it off. If the interference stop s, it was probabl y 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 interfe rence stops .

• Move the equipment to one side or the other of the te levision 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 equi pment and the television or radio are on circuits controlled by different circuit br eakers or fuses.)

Modifications to this product no t authori zed by Cisco Syst ems, Inc. could void the FCC app roval and negate your authori ty to oper ate the product. The Cisco implementation of TCP header com pression i s an adap tati on o f a pr ogr am d eveloped 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. NOTWITHSTANDIN G ANY OTHER WA RRANTY HEREIN, ALL DOCUMENT FILE S AND SOFTWARE OF THESE SUPPLIERS ARE

PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICU LAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, C CNA, CCN P, Cisco, the Cisco Certifi ed Intern etwork E xpert l ogo, Cisco I OS, th e Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChanne l, EtherSwitch, Fast Step, GigaStack, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightSt ream, MGX, MICA, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routin g, Pre-Routing, Ra te M U X, Registrar, Sc riptShare , SlideCast, SMARTnet, Strata View Plus, Stratm, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransP ath, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship betw een Cisco and any oth er company . (0304R)

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

CONTENTS

Cisco Limit e d Li fe time Hardwa r e Wa rr a nt y Ter m s xi Preface xv

Audience xv Organization xv Related Documentation xvi Conventions xvii Obtaining Documentation xxiii

Cisco.com xxiii Documentation CD-ROM xxiii

CHAPTER

Ordering Documentation xxiv Documentation Feedback xxiv

Obtaining Technical Assistance xxiv

Cisco TAC Website xxv Opening a TAC Ca se xxv TAC Case Priori ty Definitions xxv

Obtaining Additional Publi cations and In formation xxvi

1 Product Overview 1-1

Switch Description 1-1

GBIC Module Support 1-3 SFP Module Support 1-3 Switch Features 1-4

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Port Loca ti ons 1-6

10/100 and 10/100/1000 Ports 1-6 Catalyst 29 48G and 2980G Sw itch Ports 1-7 Catalyst 2948G-GE-TX Switch Ports 1-7

Switch Components 1-7

Management Ports 1-8

Console Serial Port 1-8

10BASE-T and 10/100BASE-T Ports 1-8 Front Panel LE Ds 1-8 Airflow 1-9 Power Supplies 1-11

CHAPTER

2 Site Planning 2-1

Site Power Requirements and Heat Dissipation 2-2 System Ground Conn ection Guidelines (Catalyst2948G and 2980G Switches

Only)

2-3

Connecting the Switch to Earth Ground 2-5

Site-Planning Checklist 2-7

3 Installing the Swi tch 3-1

Preparing for Installati on 3-2

EMC Regulatory Statements 3-2

U.S.A. 3-2

Taiwan 3-2

VCCI Class A Notice for Japan 3-3

Korea 3-3

Class A Notice for Hungary 3-4 Checking the Shipping Container 3-4

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Installing the Catalyst 2948G and 2980G Switches 3-6

Required Installation Tools 3-6 Rack-Mounting the Catalyst2948G and 2980G Switches 3-7

Installing the Catalyst 2948G-G E-TX Switch 3-9

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

Removing Screws from the Switch 3-10

Attaching Bra ckets to the Switch 3-11

Mounting the Switch in a Rack 3-14

Attaching the C able Guide 3-15 Wall-Mounting the Catalyst 2948G-GE-TX Switch 3-16

Attaching the Brackets to the Switch for Wall-Mounting 3-16

Attaching the RPS Connector Cover 3-17

Mounting the Switch on a Wall 3-17

Contents

CHAPTER

Mounting the Catalyst 2948G-GE-TX Switch on a Table or Shelf 3-19

Connecting Power to the Switches 3-19 Connecting to 10/100 and 10/100/1000 Ports 3-20 Connecting a Terminal to the Console Serial and Ethernet Management

Ports

3-22

Verifying Switch Operation 3-23

4 Configuring the Gigabit Ethernet Ports 4-1

Installing, Removing, and Maintaining GBICs 4-2

GBIC Features 4-2 Port Cabling Specifications 4-4 GBIC Optical Power Characteristics 4-5 GBIC Cabling Restrictions 4-5 Installing GBICs 4-6 Removing GBICs 4-9 GBIC Maintenance Guidelines 4-10

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Patch Cord 4-10

Patch Cord Configuration Example 4-11

Patch Cord Installation 4-11

Connecting To an SFP Module 4-12

CHAPTER

APPENDIX

5 Troubleshootin g the Installation 5-1

Getting Start ed 5-2 Problem Solving to the System Component Level 5-2 Identifying Startup Problems 5-3 Troubleshooting the Power Supply 5-4 Contacting Cu stomer Service 5-5

A Specifications A-1

Console Serial Port A-1 10BASE-T and 10/100BASE-T Etherne t Management Ports A-2 Catalyst2948G Switch Specifications A-2 Catalyst2948G-GE-TX Switch Specificati ons A-5 Catalyst2980G Switch Specifications A-6

APPENDIX

B Repacking a Switch B-1

C Differential Mode Delay C-1

D Translated Safety Warnings D-1

Warning Definition D-2 Safety Information Referral Warning D-7 Qualified Personnel Warning D-9 Invisible Laser Radiation Warning D-10

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Contents

Laser Radiation D-11 Attaching the Cisco RPS (model PWR300-AC-RPS-N1) D-13 Attaching the Cisco RPS (model PWR600-AC-RPS) D-14 Attaching the Cisco RPS (model PWR675-AC-RPS-N1) D-15 Redundant Power Supply Connection Warning D-17 Switch Installation Warning D-18 Chassis Warning for Rack-Mount ing and Servicing D-20

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Cisco Limited Lifetime Hardware Warranty Terms

There are special terms applicable to you r hardware warranty and v arious services that you can use during the warranty period. Your formal Warranty Statement, including the warranty applicable to Cisco software, is included on the Cisco Documentation CD and on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty docu me nt f rom the CD or Cisco.com.

1. Launch your br owser, and go to thi s U RL :

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

The Warranties an d Lice nse Ag reem ents page ap pear s.

2. To read th e Cisco Informatio n Packet, follow these steps:

a. Click the Information Pack et Number field, and make sure that the part

number 78-5235-02F0 i s highlight ed.

b. Select the langu age in which you would like to read the do cume nt. c. Click Go.

The Cisco Limited Warranty and Software License page fr om the Information Packet appears.

d. Read the docum en t onl ine , o r cl ick th e PDF icon to downlo ad an d pr int

the document in Adobe Portable Document Format (PDF).

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Cisco Limited Li fetime Hardware Warranty Terms

Note You must have Adobe Acrobat Reader to view and print PDF

files. You can download the reade r from Adob e’s website:

http://www.adobe.com

3. To re ad transla ted and l ocalized wa rranty info rmat ion abou t your produc t,

follow these s teps :

a. Enter this part number in the Warranty Document Number field:

78-6310-02C0

b. Select the language in which you would like to view the document. c. Click Go.

The Cisc o warr an t y p ag e ap pe ar s.

d. Read the docum en t onl ine , o r cl ick th e PDF icon to downlo ad an d pr int

the document in Adobe Portable Document Format (PDF).

You can also conta ct the Cisco ser vice and support websi te for assista nce:

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

Duration of Hardware Warranty

A Cisco produc t h ardwa re warra nty i s s uppo rte d fo r a s lon g a s the or igi nal end user continues to own or use the product, provided that the fan and power supply warranty is limited to five (5) years. In the event of a discontinuance of product manufacture, the Cisco warranty support is limited to five (5) years from the announcemen t of t he d i sco nti nuanc e.

Replacement, Repair, or Refund Policy for Hardware

Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (1 0) working da ys after receipt of the Return Materials Authorization (RMA) request. Actual delivery times can vary, depending on t he cu sto mer loc ation.

Cisco reserves the right to refu nd the purc hase price as its exclusive warranty remedy.

To Receive a Return Materials Authorization (RMA) Number

Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.

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Complete the information below, and keep it for reference.

Company produc t pu rc hased fr om Company telep hone num be r Product model num ber Product serial num ber Maintenance contract number

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Cisco Limited Li fetime Hardware Warranty Terms

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Preface

This preface describes the audience, organization, and conventions of the Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide and provides inf orm ati on on h ow to obta in r ela ted do cu ment atio n.

Audience

To u se thi s har dware g uide , you sh oul d be fam il iar wi th e lec tron i c ci rcu itr y an d wiring practic es an d p re fe rab ly be an electronic or e lectromechanical technician.

Organization

This guide is organized as follows:

Chapter Title Description

Chapter 1 Product O verview Lists and descri bes t h e ha rdware feat ures

Chapter 2 Site Planning Describes how to prep ar e you r site for the

Chapter 3 Installing the

Switch

and functionality of the Catalyst 2948G, 2948G-GE-TX, a nd 2980G sw itc hes .

installation of the switch. Describes how to in stall the Catalyst 2948G,

2948G-GE-TX, a nd 2980G sw itc hes . Provides procedures for removing and installing chassis components.

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Related Documentation

Describes the feat ure s a nd configurat ion of the Gigabit Et herne t p orts.

Provides troubleshooting guidelines for the initial hardware installation and suggests steps to help isolate an d resolve proble ms.

specifications. Provides procedure s to repack your

Catalyst 2948G or 298 0G switch in the ev ent that you have to retu rn it to the fact ory.

Describes the nature a nd c au ses of differential mode delay (DMD) and ways to prevent it.

Repeats in multiple languages the warnings in this guide.

xvi

Refer to the follo wing documents f or addit ional Cataly st 4500 series information:

• Software Configuration Guide—Cataly st 45 00 Seri es, C atal yst 2948G, an d

Catalyst 2980G Switches

• Command Reference—Catalyst 4500 S erie s, Cataly st 2948G, a nd Catal yst

2980G Switches

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

2980G Switches

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Conventions

This docu me nt u ses the f oll owing conventions:

Convention Description

boldface font Commands an d keywords are in boldface.

italic font Arguments for which you suppl y values are in itali c s . [ ] Elements in square brackets are optional. { x | y | z } Alternative keywords are grouped in brace s and

[ x | y | z ] Optional alte rnative keywords are grouped in bra ckets

string A nonquoted set of characte rs. Do not use quota tion

Conventions

separated by vertic al ba rs.

and separated by vertical bars.

marks around the stri ng or the stri ng will incl ude the quotation marks .

screen font Terminal sessions and information the system displays

boldface scre en

are in Information you must enter is in boldface screen font.

screen font.

font

italic screen fon t Arguments for which you supply values are in italic

screen

font.

^ The symbol ^ r epre se nts t he key labe led Cont rol— fo r

example, the key combination ^D in a screen display means hold down the Control key while you press the D key.

< > Nonprinting cha racter s, such as passwor ds are in angle

brackets.

Notes use the following conventions:

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

material not covered in th e publica tion.

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Conventions

Caution Means reader be careful. In this situation, you might do som ething th at coul d

Preface

Cautions use the following conventions:

result in equipment dam age or loss of dat a.

Warn ings use the following conventions:

Warning

Waarschuwing

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 famili ar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

Statement 1071

SAVE THESE INST RUCT IONS

BELANGRIJKE VEILIGHEIDSINSTRUCTIES Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die

lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.

BEWAAR DEZE INSTRUCTIES

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Conventions

Varoitus

Attention

TÄRKEITÄ TURVALLISUUSOHJEITA Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia

vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnett omuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.

SÄILYTÄ NÄMÄ OHJEET

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.

Warnung

CONSERVEZ CES INFORMATIONS

WICHTIGE SI CHERHE ITSHIN WEISE 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 W arnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

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Conventions

Preface

Avvertenza

Advarsel

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

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 IM PORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo. Você está em uma situação que poderá

ser causadora de lesões corporais. Antes de iniciar a util ização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.

GUARDE ESTAS INSTRUÇÕES

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Conventions

¡Advertencia!

Varning!

INSTRUCCIONE S 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

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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Conventions

Preface

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Obtaining Documentation

Cisco provides several ways to obtain d ocume nta tion, tec hni cal assi stan ce, a nd other technical resources. These sections explain how to obtain technical information from Cisc o Systems.

Cisco.com

You can access the most current Cisco documentation on the Wo rld 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

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, whic h may have shipped with you r product . The Documentation CD-ROM is updated regularly and may be more current than printed document ation . The CD-ROM package is available as a single unit or through an ann ua l or q uarter ly su bsc ripti on .

Register ed Cis co.com u sers ca n ord er a si ngle Do cumenta tion CD-ROM (product number DOC-CONDOCCD=) through the Cisco Ordering tool:

http://www.cisco.com/en/US/partner/ordering/ordering_place_ order_orde ring_t ool_launch.html

All users can order a nn ual or qu ar ter ly su bscri ptions t hr ough t he onli ne Subscription Store:

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

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Obtaining Technical Assistance

Ordering Documentation

You can find ins truc tio ns for or de ring do cu ment atio n a t t his U RL:

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

You can order Cisco doc umen tation in these ways:

• Register ed Cisco.co m users (Cis co direct cus tomers) can order Cisco product

documentation from the Ne twork ing Prod ucts Mar ketPlac e:

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

• Nonregistered Cisco.com users can orde r documen tation thro ugh a loca l

account representa tive by calling Cisco Systems Corpor ate Head quarte rs (California, USA .) at 408 52 6-7208 or, elsewhere in North Am erica , by calling 800 553-NETS (6 387).

Preface

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentatio n home page , click Feedback at the top of the page.

You can send y our c om ment s in e -mai l to bug-doc @ci sc o.com . You can submit comments by using the response card (if present) behind the front

cover of your document or by writing to the followin g address: Cisco Systems

Attn: Customer Docu ment Orde ring 170 West Tasman Drive San Jose, CA 951 34- 988 3

We ap prec iate yo ur comm en ts.

Obtaining Technical Ass istance

For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, the Cisco Technical Assistance Center (T AC) provides 24-hour, award-winning technical support services, online and over the phone. Cisco.com features the Ci sco TAC website as an o nline startin g point for technical ass istance.

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Cisco TAC Website

The Cisco TAC website (http://www.cisco.com/tac) provides online documents and tools for trou blesh ooti ng a nd resol ving te ch nica l issu es with Cisc o p roduc ts and technologies. The Cisco TAC website is available 24 hours a day, 365 days a year.

Accessing all th e tool s on th e Ci sco TAC website require s a Cisco. co m user ID and password. If you have a valid service contract but do not have a login ID or password, register a t t his UR L:

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

Opening a TAC Case

Obtaining Technical Assistance

The online TAC C ase Op en 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 in forma tio n). A f ter yo u d escri be you r situat ion , th e TAC Ca se Open Tool automatically recommends resources for an immediate solution. If your issue is n ot reso lved usi n g th ese r ec omme nd ations , your ca se w ill be assigned to a Cisc o TAC en gine er.

For P1 or P2 cases (your produc ti on n etwork is down or severely degraded) or if you do not h ave Internet ac cess, con tac t Cisc o TAC by tel ephon e. Cisc o TAC engineers are assigned immediately to P1 and P2 cases to help keep your business operations running smoothly.

To o pe n a ca se by t ele phone , use o ne of the fol lowing nu mbe rs: Asia-Pacific: +61 2 8446 7411 (Austral ia: 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.

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Priority 1 (P1)—Your network is “down” or there is a critical impact to your business operations. Yo u and Cisco w ill comm it all nece ssary re sources ar ound the clock to resolve the situation.

Priority 2 (P2)—Ope ration of an existing network is severely degraded , or significant aspects o f y our business opera ti on ar e negatively affected by inadequate perfor ma nce of Cisco pro duct s. You and Cisco will commit full-time resources during normal business hours to resolve the situati on.

Priority 3 (P3)—Operational performance o f your network i s impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restor e service t o satisfact ory levels.

Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Preface

Obtaining Additional Publication s and In formation

Information abo ut C isco pr odu cts, tech nol ogies, a nd ne twork solu tio ns is available from various online and printed sources.

• The Cisco Product Catalog desc ribes t he ne tworking prod uc ts 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 publi shes a wide r ange of n etworking pu bli cations. Cisc o

suggests these ti tles for new and experience d users: Inte rnetwor king Terms and Acronyms Diction ary, Internetworking Technology Handbook, Internetworking Troubleshoo ting G uid e, and the I nter net workin g De sign Guide. For current Cisco Press titl es and other information, go to Cisco Press online at this URL:

http://www.ciscopress.com

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Obtaining Additional Publications and Inform ation

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

networking trends, te chn ology br eakt hroug hs, and Cisc o p roduc ts and solutions to help industry professionals get the most from their networking investment. Included are networking depl oyment and troubl eshoo ting tips, configuration examples, cu stomer c ase studies, tutoria ls and trainin g, 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 bim onthly publ ication th at delivers the latest

information about Internet business strategies for executives. You can access iQ Magazine at this URL:

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

• Internet Protocol Jour nal is a quarte rly journa l published by Cisco Systems

for engineerin g p rofe ssiona ls involved in designing , developing, and operating public and private internets and intranets. You can access the Internet Protocol Jour nal 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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CHAPTER

Product Overview

This chapter provides an overview of the features and components of the Catalyst 2948G, 2948G-G E-TX, and 2980G switc hes. It con tains thes e sections :

• Switch Description, page 1

• Switch C om pon ents , pa ge 7

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

switch and the Catalyst 2980G -A switc h, unless ot herwis e noted.

Switch Description

The Catalyst 2948G, 294 8G-GE- TX, and 29 80G switc hes are desig ned for high-performa nce , hi g h-d ensity w iri ng -clo set ap pli cati ons. Figu re 1-1 through

Figure 1-3 show the switches.

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Switch Description

Figure 1-1 Catalyst 2948G Switch

STATUS Catalyst 2948G

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

Chapter 1 Product Overview

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Figure 1-3 Catalyst 2980G Switch

STATUS

SLOT 2

SLOT 3

The Catalyst 2948G, 294 8G-GE- TX, and 2980G switche s interface wi th networking equipment using Ethernet (10BASE-T), Fast Ethernet (100BASE-T), and Gigabit Etherne t (1000BASE-T) inte rfaces. Dep ending on t he model , the switches also support Gigabit Interface Converters (GBICs) or small fo rm-factor pluggable (SFP) modules.

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The Catalyst 2948G swit ch has 48 auto sensing and au toconfigur ing 10/100BASE-T Fast Ethernet fixed ports. The Catalyst 2948G-GE-TX switch has 48 autosensing and autoc onfiguring 10/100/ 1000BASE-T ports . The Catalyst 2980G switch has 80 autose nsing and au toconfiguring 10/ 100BASE-T Fast Ethernet fixed ports.

GBIC Module Supp or t

The Catalyst 2948G and 29 80G switc hes each have two Gigabit Ethern et uplink ports with modular Gigabit Interface Converters (GBICs).

A GBIC is a hot-swappable input/output device that plugs into a Gigabit Ethernet port module and links the port module with a fiber-optic network. For a detailed description of Gigabi t Ethern et ports , see the “GBIC Features” section on

page 4-2.

Switch Description

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

Note The Catalyst 2948G -GE-TX switch does not suppo rt GBIC mod ules.

The Gigabit Etherne t ports can be configured wit h any combina tion of GBIC types.

The Gigabit Ethernet ports on these modules are used primarily for backbone interconnection o f othe r high- perf orm ance s witc hes a nd ro ut ers.

SFP Module Support

The Catalyst 2948G-GE-TX switch has four small form-factor pluggable (SFP) module slots. The switch uses SFP modules to establish Gigabit connections. The SFP module slots are located on the front of the switch.

An SFP module is a hot-swappable input/output device that plugs into an SFP module slot, linking the por t module with a fiber-optic network.

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

Tab le 4-4 on p age 4-12 .

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Switch Description

Note Catalyst 2948G-GE- TX switch onl y supports 10 00 Mbps an d full-dupl ex modes

on SFP modules.

Except for the 1000BASE-T SFP module, all of the SFP modules are used to establish fiber-optic co nne ctio ns. You use fiber-optic cables with Lucen t (L C) connectors to connect to an SFP module. The SFP modules support 850 to 1550 nanometer nom ina l wave lengths. T he se fiel d-re pla cea ble mo dule s p rovid e the uplink optical interfaces, laser send (TX) and laser receive (RX). For a detailed description of Gigabit Ethern et ports se e the “Connecting To an SFP Module”

section on page 4-12.

Switch Features

Chapter 1 Product Overview

Table 1-1 describes the Catalyst 2948G , 2948G-G E-TX, and 2980G swit ch

features.

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

Feature Description

Ethernet s peeds

• Ethernet ( 10 BASE-T) int e rface to work stati ons and re peat ers

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

switches, and rout ers

Note Autonegotiation of li nk spe ed on ea ch 1 0/100 a nd 10/1 00/1 000

port allows migration to 100BASE-T or 1000BASE-T from a 10BASE-T or 100BASE-T installed base.

• Gigabit Eth erne t (1 000 BASE-T) copp er a nd Gi gab it Et hern et

(1000BASE-X) fiber-optic inte rface for ba ck bon e int erc on nect ion o f high-perform ance switches a nd router s

Standard management and support

• Layer 2 forw ardin g with an agg re gat e for war ding rate o f gr eater than

17.8 million packets per second

• 16,000 MAC addresses per system

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

Feature Description

Switch Description

Standard management and support (conti nued)

Software m an agem en t

• Up to 1,024 VLANs wi th IEEE 802.1Q VLAN tagging on al l ports

and support f or VTP

• Port aggregation using PAgP

for 100-Mbps and 1-Gbps

EtherChannel

• CLI

and SNMP interfaces consi stent with the Catalyst 4500 series

and 6500 fam ily sw it ches

• Development of new features compatible with the Catalyst 6500

family switches

• Out-of-band mana geme nt thro ugh th e R J-45 10 BASE-T consol e

serial port

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

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

Note The Catalyst 2948 G-G E-TX and 29 80G- A sw itches have a

10/100BASE-T management por t.

• RMON

• Standard Layer 2 elements:

with RMON 1

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Switch Description

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

Feature Description

Embedded ma nage ment

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

standard MIBs, a nd all r elevant Cisco M IBs

• The first four RMON g roups (Ethern et statistic s, Alarms, E v ents, and

History) supported on a per port basis witho ut an optional RM ON processing module

• Redirection of tra ffic from any por t t o a “sn i ff” port. (Any sw itch ing

port can be desig nated as a “sniff” port.)

• Performance mana gement informat ion

Power supplies

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

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

switch

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

1. VTP = VLAN Trunking Protocol

2. PAgP = Port Aggregation Protocol

3. CLI = command-line interface

4. RMON = Remote Monitoring

5. CDP = Cisco Discovery Protocol

6. VTP = Virtual Terminal Protocol

7. CGMP = Cisco Group Management Protocol

Port Locations

This section de sc ribes th e por t loc atio ns an d nu mb er ing on the swi tche s.

10/100 and 10/100/1000 Ports

The 10/100 an d 10 /100/ 1 000 por ts a re c onfigure d in vertic al pa irs. Ea ch vert ical pair has two Link Status LEDs below it. The LED on the left is for th e top port ; the LED on the right is for the bottom port. For example, LED 1 is for the upper port (port 1) a nd LED 2 is f or the b ottom por t ( por t 2) .

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Catalyst 2948G and 2980G Switch Ports

The Catalyst 2948G switch 10/100BASE-T ports are configured in two rows. The top row contains odd-numbered ports (1 through 47), and the bottom row contains even-numbered ports (2 t hr ough 48) .

The Catalyst 2980G switch 10/100BASE-T ports are configured in four rows. The top two rows are num bere d 1 thr oug h 4 8, w ith the first row odd-nu mb ered (1 through 47) an d the secon d r ow even-numbered ( 2 th rou gh 48) . Th e bot tom two rows are numbered 1 through 32, with the first row odd-numbered (1 through 31) and the second row even-numbered (2 throu gh 32).

Two GBI C por ts a re a t t he r ight of t he fr ont pa nel on t he C ata lyst 2948G an d Catalyst 2980G switches:

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

front panel. T he up per G iga bit Eth er net por t is p ort 49; t h e lower i s po rt 5 0. The Link Sta tus L EDs fo r th ese p ort s a re below port 50.

Switch Components

• On the Catalyst 2980 G sw it ches, the GBI C Ethe rn et por ts a re l oca ted

immediately to the right of ports 31 and 32. The p ort on the left is port 33; the port on the right is port 34. T he Link Sta tus LED s for the Gi gabit Ethe rnet ports are located below each port.

Catalyst 2948G-GE-TX Switch Ports

The Catalyst 2948G -GE-TX 10/100/10 00BASE-T Gigabi t Etherne t ports are configured in two rows. The top row contains odd-numbered ports (1 through 47), and the bottom row contains even-numbere d ports (2 thr ough 48).

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

Switch Components

This section describe s the following Cataly st 2948G and 2980G switch components:

• Management Ports, page 8

• Front Panel LEDs, page 8

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Switch Components

• Airflow, page 9

• Power Supplies, page 11

Management Ports

The Catalyst 2948G, 2948G -GE-TX , and 2980G swit ches have two kinds of management ports: co nsole seria l and Ether net. The Cat alyst 2948 G switches have a 10BASE-T management port. The Catalyst 2948G-G E-TX an d 2980 G-A switches have a 10/100BASE-T management port.

Tab le 1-2 on p age 1-9 lists the management options for the switches.

Console Serial Port

Chapter 1 Product Overview

An RJ-45 console serial port allows you to perform switch-management functions using a terminal. See Table A-1 on page A-1 for the consol e connec tor pinou ts.

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

An RJ-45 10BASE-T port al lows you to pe rfor m TCP/I P sw itch- mana geme nt functions (Telnet, SNMP, FTP), configure IP addre sses with BOOTP, and download software images.

Note The Catalyst 2948G -GE-TX an d 2980 G-A swit ches have a 10/100BASE-T

management port.

This port is for network management only; it is not for switc hing. Connecti vity is not available between this port and th e 10/100BASE-T swit ching por ts.

Front Panel LEDs

The LEDs on the front panels of the Catalyst 2948G, 2948G-GE-TX, and 2980G switches perform the following functions:

• STATUS LEDs indicate the operating state of the switches.

• Link Status LEDs provide m an agemen t a nd i ndic ate sw itch ing port sta tus.

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Switch Components

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

switch.

• PWR LED indicat es the i nte rnal power suppl y status on the C atal yst 2980G

switch.

• RPS LED provides the external redundan t power supply status.

Table 1-2 describes the LEDs.

Table 1-2 Front Panel LEDs

LED Color/Statue Description

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

Green Red Amber Off

All tests pass. A test other than an individual port test fails. System boot or di ag nostic te sts in pr ogress. Switch is disabl ed .

Link Status Indicates the li nk status of a port .

Green Amber Flashing Off

Port is operati onal . Port is disabl ed by us er. Power-on self-test indicates faulty port. No signal detected, or link configuration failure.

PSI, PWR, and RPS Indicates power supply operat ion or failure .

Green Amber

Power supply is operational. Power supply has failed or is in Standby mode.

Airflow

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

On the Catalyst 2948G and 298 0G switches , the system fan asse mbly provides cooling air for the internal chassis components. The fans exhaust warm air from one end and draw in c ool ai r a t t he oth er end .

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Switch Components

If an individual fan fails, the other fans co ntinue to ru n. Sensor s m onitor the internal air tem peratures. If the air te mp er atu r e exceeds a tolerable threshold , th e environmental monitor displays warning messages.

On the Catalyst 2 948G-GE-TX, a blower system draws cool air in from the front and sides of the switch and exhausts ai r out the bac k.

Figure 1-4 shows the direction of airflow through the Catalyst 2 948G switch. Figure 1-5 shows the direction of airflow through the Catalyst 2948G-GE-TX

switch.

Figure 1-6 shows the direction of airflow through the Catalyst 2 980G switch.

Figure 1-4 Catalyst 2948G Airflow

Chapter 1 Product Overview

STATUS Catalyst 2948G

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

- X

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Figure 1-6 Catalyst 2980G Airflow

STATUS

SLOT 2

SLOT 3

Power Supplies

There is no power switch on the switches. AC power is present in the power supply when t he power c ord is pl ugged i n.

Switch Components

T 2

32064

The environmental monitoring and reporting functions allow you to maintain normal system op erat ion by c orr ect ing ad verse e nvironmenta l c ondi tion s b ef ore loss of operation.

Each po wer suppl y monitor s its o wn tempe rature an d output volta ges. If th e power supply becomes excessively hot, it shut s down to prevent damage. The swi tches monitor the op er ati ng cond ition o f th e power supp ly and re po rt the status usin g switch software.

The switches have the following power supplies:

• 120 W AC internal power supply—C ata lyst 2 948 G sw itch

• 156 W AC internal power supply—C ata lyst 2948 G- GE-T X swi tch

• 175 W AC internal power supply—C ata lyst 2 980 G sw itch

• 156 W AC internal power supply—C ata lyst 2 980 G-A swit ch

Note For complete power specifications for th e Catalyst 294 8G, 2948G -GE-TX ,

and 2980G switches, se e A pp end ix A, “S peci ficat ions. ”

These switches also be used with an o ptional Cisco Re dundant Power System (RPS).

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Switch Components

Chapter 1 Product Overview

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

(PWR600-AC-RPS-CAB). The Cisco R PS 60 0 s uppo rts fou r exte rnal d evices tha t u se up to 1 50 W DC

each. Use a one-to-one cable (one connector at each cable end) to connect four external devices to the f our DC outpu t power mo dule s.

The power source is pa rti ally re du ndant . T he re a re t wo AC input power modules for the Cisco RPS and one DC output power mod ule for each external de vice. The A C input to the Cisco RPS is fully redundant, but the DC output to the ex ternal devices is not.

Warning

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

Statement 112

• The Catalyst 2948G-G E-TX sw itch uses the Ci sco RPS 675 (model

PWR675-AC-RPS-N1). The RPS 675 supports six extern al netwo rk devices and provides D C power

to one failed de vice at a time. It automatically senses when the internal power supply of a connected device fail s and provides power to that device, whic h prevents loss of network traffic.

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

Statement 100C

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

(PWR300-AC-RPS-N1). The RPS 300 supports six extern al network devices an d provides power to

one failed device at a time. I t a utom atic ally se nse s wh en th e power supply of a connected device fails and provides the necessary power to the failed device to prevent loss of network traffic. When the internal power supply of the device has been brought up or replaced , the RPS automa tically stop s powering the device.

Warning

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

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

Statement 100B

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A Cisco RPS can only power one switch at a time. If more than one switch fails at the same time, any subsequent switch is not su pported by the RPS u ntil the f irst switch failure is resolved. For more information, refer to the documentation that was included with your RPS.

On the Catalyst 2948G swi tch, you must use a Y cable to connec t the switc h to two RPS 600 power supplies. Each RPS 600 has status LEDs (PSI and RPS).

On the Catalyst 2980G-A switch, eac h RPS 300 power supply has an individual power cord and has status LEDs (PSI, PWR, and RPS).

The RPS uses redundant power supplies. If one of the power suppli es in the RPS fails, the RPS will automatically switch over to the other power supply without forcing the switch t o reboot.

Note On the Catalyst 2948G -GE-TX an d 2948G swi tches, only one power source can

supply power to the switch a t a ny one time . W hen you ar e u sing a n RPS, unplu g the local power cord for the switch. If you are using the local power supply, the RPS can be connected but must not be powered on. The switches can be powered by both the internal power supply and the RPS at the sa me time.

Switch Components

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Switch Components

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CHAPTER

Site Planning

Before you install, operate, or service the sy stem, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

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

Statement 1030

Statement 200

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This chapter describes ho w to prepar e your site f or the insta llation of y our switch and contains t hese se ction s:

• Site Power Requirements a nd H eat D issipa tion, p age 2

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

Only), page 3

• Site-Planning Check list, pa ge 7

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

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

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Chapter2 Site Planning

Site Power Requirements and H eat Dissipation

Site Power Requirements and Heat Dissipation

Note Catalyst 2948G, 294 8G-G E-TX , a nd 2980G s witc hes have in ter nal power

supplies. All of t he switc hes su ppo rt Cisc o Re dun dant Power System ( RPS) fo r redundant ope ratio n.

This section provides site po wer requirement s and heat dissipation specif icati ons for the Catal yst 2948G , 2948 G -GE- TX, a nd 2980G swi tches . You should verify site power before you install a switch.

Power requirements can vary for each Catalyst switch. Knowing the power requirements can be use ful for pl an ning the power dis tribution syst em ne ede d to support the switches. Heat specifications are used for determining the air-conditioning requirements for an installation.

Note Refer to the Site Preparation and Safe ty Gui de for site power requireme nts,

preinstallati on requ ireme nts, an d EMI reco mmen datio ns.

Table 2-1 descr ibes the po wer r equireme nts and he at dissip ation sp ecific ations f or

the Catalyst 2948G, 29 48G-G E-T X, a nd 2980G switc hes.

Table 2-1 Power Requirements and Heat Dissipation Specifications

Power

Model Number/ Module Type

Supply Output (Watts)

AC Input Power (Watts)

Heat Diss (BTU/Hr) AC Input Current (Amps)

Catalyst 2948G switch 120 200 645 90 VAC: 2.0

120 VAC: 1.6 180 VAC: 1.0 240 VAC: 0.9

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

240 VAC: 0.8

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

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

Power

Supply Model Number/ Module Type

Catalyst 2980G switch 175 300 950 90 VAC: 3.0

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

Output

(Watts)

AC Input Power (Watts)

Heat Diss (BTU/Hr) AC Input Current (Amps)

120 VAC: 2.4 180 VAC: 1.6 240 VAC: 1.0

120 VAC: 1.7 180 VAC: 1.1 240 VAC: 0.9

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

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

Note These guidelines do not apply to the Ca talyst 294 8G-GE -TX switche s.

See Figure 2-1 for the locatio n of th e gro undin g h ole s on the C atal yst 2948G switches and Figure 2-2 for the location on the Catalyst 2980G switches.

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

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

M4 screw holes (2)

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

Chapter2 Site Planning

33110

M4 screw holes (2)

To m a ke an ad eq ua te g ro undin g c on nect ion , y ou nee d t hes e c om pon en ts a nd tools:

• Grounding lug— The gro und ing lu g m ust have two M4 sc rew hol es. See

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

switch and Figure 2-2 for the Catalyst 2980G switch. The grounding lugs ar e not available from Cisco Systems; any

electrical -connec tor vendor can provide this lug.

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

not available from Cisco Systems; they are available from any commercial hardware vendor.

• One grounding wi re ( 6 AWG recommended)—The leng th o f the gr oundi ng

wires depends on the location of your switch within the site and its proximity to proper grounding facil ities. The grounding wire is not a vailable from Cisc o Systems; it is available from any commercial cable vendor.

33109

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

• Number 2 Phillips head screwdriver.

• Crimping tool—Thi s must be large enoug h to accommo date th e girth of the

grounding lug when you crimp the grounding c able into the lug.

• Wire-stripping tool.

Connecting the Switch to Earth Ground

This proced ure descr ibes how to connect th e Catalyst 294 8G, 2948G -GE-TX , and 2980G switches to e arth gro und. We strongly recommend th at yo u com ple te this procedure be for e c onnec ti ng system p ower o r tu rnin g o n y our sw it ch.

T o attach the grounding lug and cable to the grounding pad on the Catalyst 2948G, 2948G-GE-TX, and 2980G switche s, follow these steps :

Step 1 Use a wire -stripp ing tool to remove approxi mate ly 0.75 inc hes (19 mm ) of the

covering from the end of the groun ding wire.

Step 2 Insert the stripped end of the ground ing wir e into the ope n end of the gr ounding

lug.

Step 3 Use th e crimping t ool to secure the grounding wire in place in the grounding lug. Step 4 Locate the grounding pad on the switch .

See Figure 2-3 for the location of the grounding pad on the Catalyst 2948G switch and Figure 2-4 for the Catalyst 2980G switch.

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

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

Wire

Grounding

Screws

Grounding lug

pad

Chapter2 Site Planning

33112

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

33111

Wire

Grounding pad

Step 5

Screws

Grounding lug

Remove the label th at c overs the gr oundi ng pad.

Step 6 Place the grounding lug against the grounding pad on the rear panel of the switch. Step 7 Install locking washers; tighten them to secure the grounding lug to the grounding

pad.

Step 8 Insert t wo scr ews throu gh the hole s in t he g rou nding lug a nd the gr oundi ng pad.

Ensure that the grounding lug and the attached wire will not interfere with other switch hardware or ra ck equ ipment .

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Site-Planning Checklist

Step 9 Prepare the other en d of the ground ing wir e and conne ct it to an a ppropriat e

grounding point at you r site to ensure a dequat e earth groun d for the swit ch.

Site-Planning Checklist

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

install the Catalyst 2948G, 2948G-GE-TX, and 2980G switches. Completing each activity helps ensure a successful switch installation.

Table 2-2 Site-Planning Checklist

Task No. Planning Activity Verified By Time Date

1 Space evaluation:

Space and lay out Floor covering Impact and vibr ation Lighting Maintenance access

2 Environmental evaluation:

Ambient temperature Humidity Altitude Atmospheric contamination Airflow

3 Power evaluation:

Input power type Proximity of r ece ptac le to the e quipm en t Dedicated (se pa rate) c irc uit s fo r re dun dant p ower suppli es UPS for power failures

4 Groundi ng evaluation:

Circuit breaker size

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Chapter2 Site Planning

Site-Planning Checklist

Table 2-2 Site-Planning Checklist (continued)

Task No. Planning Activity Verified By Time Date

5 Cable and interface equipment evaluation:

Cable type Connector type Cable distance limitations Interface equipment (transceivers)

6EMI evaluation:

Distance limitations for signaling Site wiring RFI levels

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Warning

CHAPTER

Installing the Switch

Before you install, operate, or service the sy stem, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

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

Statement 1030

Statement 200

78-6286-05

This chapter d escri bes how to insta ll the Ca ta lyst 2948G, 2948G -GE -TX , and 2980G switches. For first-t ime installations, perform the procedures in these sections in the order listed:

• Preparing for Installation, page 2

• Installing the Catalyst 294 8G and 2980G Swit ches, page 6

• Installing the Catalyst 294 8G-GE -TX Switch, page 9

• Connecting Power to the Switches, page 19

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

page 22

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

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

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

3-1

Preparing for Inst al la tion

Preparing for Installation

This section provides informa tion ab out these to pics :

• EMC Regulatory Statements, page 2

• Checking the Shipping Contai ner, page 4

EMC Regulatory Statements

This section includes specific regulatory statements about the switches.

U.S.A.

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

Chapter 3 Installing the Switch

Taiwan

Warning

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

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VCCI Class A Notice for Japan

Preparing for Installation

Korea

Warning

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

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

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Preparing for Inst al la tion

Class A Notice for Hungary

Chapter 3 Installing the Switch

Warning

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

Checking the Shipping Container

Do not disca rd t he p ac king c art on an d othe r pack in g m ateri al s aft er you un pack the switch. Flatten the packing carton and store it. You will need the packing materials if you need to move or ship the switch in the future. Repacking instructions are provided in Appendix B, “Rep ackin g a Switch.”

Check the contents of the accessory kit against the accessories checklist and the packing slip. Verify that you received all listed equipment.

Catalyst 2948G and 2980G Switches

The Catalyst 2948G and 29 80G switche s are shipped wit h these item s:

• This hardware guide

• AC power cord

• RJ-45 to DB-9 cable

• DB-9 to RJ-45 c ab le

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Chapter 3 Installing the Switch

• ESD wrist strap

• Mounting kit

Catalyst 2948G-GE-TX Switches

The Catal yst 2 948 G-G E-TX swit ch is shi pped wit h th ese it ems :

• This hardware guid e

• About the Catalyst 2948 G Docum entati on flyer

• AC power cord

• One RJ-45-to-DB-9 ada pter cabl e (78-338 3-XX)

• Mounting kit containing:

–

Four rubber feet for mount ing the swi tch on a table (5 1-0089 )

Preparing for Installation

–

Two 19 -in ch ra ck-m ou nti ng bra ckets ( 700- 08 209-X X)

–

Four Phillips machine screws for attaching the brackets to a rack (48-0655-XX)

–

One cable guide (700-0 5613-XX )

–

One black Phillips machine scre w for atta ching the ca ble guide to one of the mounting b racket s (48-06 54- XX)

–

One Redundant Power System (RPS) connector cover for wall mounting (700-16465-XX)

–

Two Phillips pan-head screws for attachin g the RPS cov er (48 -0482-XX)

–

Four Phillips truss-head screws for attaching wall-mounting bra ckets (48-0656-XX)

–

Four Phillips pan-head screws for attaching the switch to a rack (48-0523-XX)

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Chapter 3 Installing the Switch

Installing the Catalyst 2948G and 2980G Switches

Installing the Catalyst 2948G and 2980G Swit ches

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the sys tem 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 i n 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.

A standard rac k-m ount k it is in clude d for moun t ing th e sw itch in a standard 19-inch (48.3 cm) eq uipmen t rack with two unobst ructed ou ter posts. This kit is not suitable for racks with obstructions (such as a power strip) that could impair access to the switch.

Required Installat i on To ols

Statement 1006

You will need the following too ls an d equip ment to install the switc h chassis in a rack:

• Rack-mount kit

• Tape measure and level

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

• Antistatic mat or antistatic foam

• Your own electrost atic d isch arge (E SD) gr ou nding stra p or t he d isp osable

ESD strap included with the switch

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

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Installing the Catalyst 2948G and 2980G Switches

Rack-Mounting the Catalyst 2948G and 2980G Switches

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

Step 1 Prepare for installation as follows:

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

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

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

outside of the front-m ounting posts to the outside of the rear-mounting strip. The depth must be at least 19.25 inche s (48.9 cm) an d not great er than 32 inches (81.3 cm).

c. Measure th e sp ace be twee n the in ner edge s of the lef t fr ont- an d r ight front -

mounting posts to ensure that it is 17.75 inches (45.09 cm) wide. (The chassis is 17.5 inches [44 cm] wide and mus t fit between th e mounti ng posts. See

Figure 3-2.)

d. Open the rack-mou nt k it a nd refer to the c om p onen t checklist in Table 3-1 to

verify that all parts ar e inclu ded.

Table 3-1 Rack-Mount Kit Checklist

Part Description Quantity

L brackets 2 M4 Phillips pan-head screws 4 12-24 x 3/4-inch Phillips binder-head screws 6

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

If the rack has this feature, consider the position of the strip when planning fastener po ints. Before i nstalling th e L brackets o n the chassi s, determine wh ether to install the chassis from the front or the rear of the rack.

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

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

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Installing the Catalyst 2948G and 2980G Switches

The L brackets conne ct th e switc h ch assis to the ra ck. You can mount the L brackets to the front- or rear-mounting holes of the chassis, depending on which end is in the front of th e rack.

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

The rack-mounti ng proce dure for the Catal yst 2980G switc h is t he sa me.

Figure 3-1 Attaching the L Brackets

STATUS Catalyst 2948G

Chapter 3 Installing the Switch

- X

98435

Step 3

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

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

Install the chassis in the rack as follows:

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

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

of the chassis between the mounting posts.

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

of the chassis between the mounting posts.

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

equipment rac k.

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

the elongated holes in the L bracket and i nto the th reade d holes in the mounting post.

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

and level.

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Chapter 3 Installing the Switch

17.75 inches (45.09 cm)

Figure 3-2 Installing the Switch in the Rack

17.75 inches (45.09 cm)

STATUS Catalyst 2948G

Installing the Catalyst 2948G-GE-TX Switch

- X

98436

Installing the Catalyst 2948G-GE-TX Switch

Warning

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

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.

Statement 1006

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Chapter 3 Installing the Switch

Installing the Cat al ys t 294 8G- GE - T X Switc h

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

• Rack-Mounting th e Catalyst 2948 G-GE- TX Switch, pa ge 10

• Wall -Mount ing the Catal yst 2948G-G E-TX Swit ch, page 16

• Mounting the C atalyst 2948 G- GE-TX Swi tch o n a Table or Shelf, page 19

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

To install a Catalyst 2948G-GE-TX switch in a 19-inch rack (24-inch racks require optional mou nting hardwar e), follow the instruc tions desc ribed in thes e procedures:

• Removing Screws from the Swit ch, page 10

• Attaching Brackets to the Switch, page 11

• Mounting the Switch in a Rack, page 14

• Attaching the Cable Guide, page 15

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

• Attaching the RPS Conne ctor Cover, page 17

• Mounting the Switch on a Wall, page 17

• Mounting the C atalyst 2948 G- GE-TX Swi tch o n a Table or Shelf, page 19

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

with the switch. Yo u can ord er a kit co ntain ing the 24- inch rack -mount ing brackets and ha rd ware (o rde r part num be r R CKMN T-1RU=) from Cisco.

Removing Screws from the Switch

If you plan to install the switch in a rack, you must first remove screws in the switch chassis so that mounting brackets can be attached. Figure 3-3 shows how to remove the chassis screws from the switch.

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Chapter 3 Installing the Switch

Installing the Catalyst 2948G-GE-TX Switch

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

98659

Attaching Brackets to the Switch

The bracket orien tation a nd the brac kets you use depend on whethe r you are attaching the brac kets for a 19 -inc h o r a 24- inc h ra ck. For 19-i nch r ack s, use the brackets that are included in the mounting kit.

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

with the switch. Yo u can ord er a kit co ntain ing the 24- inch rack -mount ing brackets and ha rd ware (o rde r part num be r R CKMN T-1RU=) from Cisco.

Figure 3-4 through Figure 3-9 show how to attac h each type of br acket to one si de

of the switch. Fo llow the same steps to attach the second bracket to the opposite side of the switc h.

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Installing the Cat al ys t 294 8G- GE - T X Switc h

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

1 Phillips flat-head screws

Chapter 3 Installing the Switch

98660

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

98657

1 Phillips flat-head screws

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Chapter 3 Installing the Switch

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

1 Phillips flat-head screws

Installing the Catalyst 2948G-GE-TX Switch

98661

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

98662

1 Phillips flat-head screws

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Installing the Cat al ys t 294 8G- GE - T X Switc h

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

1 Phillips flat-head screws

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

Chapter 3 Installing the Switch

98663

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 3-10.

98664

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Chapter 3 Installing the Switch

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

1 Phillips machine screws

Attaching the Cable Guide

Installing the Catalyst 2948G-GE-TX Switch

98665

We recommend attaching the cable guid e to the left or right brack et to pr ev ent the cables from obscuring the front panel of the switch and the other devices installed in the rack. Use the supplied black screw, as shown in Figure 3-11, to attac h th e cable guide to the left or right bracket.

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

1 Cable guide screw

98666

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

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

screw to mount it on the left or right bracket.

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Chapter 3 Installing the Switch

Installing the Cat al ys t 294 8G- GE - T X Switc h

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

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

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

• Attaching the RPS Conne ctor Cover, page 17

• Mounting the Switch on a Wall, page 17

Attaching the Brackets to the Switch for Wall-Mounting

Figure 3-12 shows how to attach a 19-inch bracket to one si de of the sw itch.

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

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

98667

1 Phillips truss-head screws

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Chapter 3 Installing the Switch

Attaching the RPS Connector Cover

If you are not using a Cisco RPS with your switch, use the two Phillips pan-head screws to attach the RPS connecto r cover to the back of the switch before you mount it, as sh own in Figu re 3-13.

Installing the Catalyst 2948G-GE-TX Switch

Warning

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

Statement 265

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

Switch

ATING

100-200V ~

1.6A-0>9A, 50-60 H Z

DC IN

SPECIFIED

+12v @

TS FO

ER SUPPLY

IN M

R REM

ANUAL

8.5a

98668

1 2

1 Phillips pan-head screws 3 RPS connector 2 RPS connector cover

Mounting the Switch on a Wall

For the best support of the swi tch and cabl es, ma ke sure the switc h is attach ed securely to wall studs or to a firmly atta ched plywood mo unting ba ckboard . Mount the swi tch wi th t he f ro nt p anel faci ng u p, as shown in Figur e 3-14.

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Installing the Cat al ys t 294 8G- GE - T X Switc h

Chapter 3 Installing the Switch

Warning

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

Statement 266

Figure 3-14 Mounting the Switch on a Wall

1 User-supplied screws

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

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Chapter 3 Installing the Switch

Connecting Power to the Switches

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

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

Step 1 Locate the adhesive strip with the rubber feet in the mounting-kit envelope. Step 2 Attach the four rubber feet to the recessed areas on the bottom of the unit. Step 3 Place the switch on the table or shelf near an AC power source.

Connecting Power to the Switches

T o connect power to Catalyst 2948G, 2948G-GE-TX, and 2980G switches, follow these step s:

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

and grounding requi rements describe d in “Site Planning” section on page 2-1 have been met.

Step 2 Plug the power cord into the chassis. Step 3 Connect th e other en d of the power cord to an AC-power input source . Step 4 Verif y p ower suppl y oper at ion by c hecki n g the front p anel power s upply L EDs :

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

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

From the system console , enter the show system command to display the power supply and system status. For more information on commands, refer to the command ref ere nc e for y our swi tch .

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Chapter 3 Installing the Switch

Connecting to 10/10 0 and 10/100/1000 Ports

If the LEDs or the show system command indicate a power p rob lem or o ther system problem, see Appendix D, “Translated Safety Warnings” for more information.

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

The 10/100 por t s on the C atal yst 2 948 G an d 298 0G sw itch es co nfigure themselves to operate at the speed and duplex settings of attached devices. They operate at 10 or 100 Mbps in half- or full-duplex mode. If the attached devices do not support autonegotiat ion, the spe ed should resolve corre ctly. You can also explicitly set the speed and duplex parameters.

The 10/100/10 00 port s on the Cat al yst 2 948 G-GE- TX sw it che s configure themselves to oper ate at the speed setting of attach ed devi ces. These ports operate at 10, 100, o r 1 000 Mbp s i n full -d uplex m od e. I f t he at ta ch ed devic es do no t support autonegoti ation , you can set the spe ed .

Connecting devices that do not autonegotiate or devices with manually set speed and duplex paramete rs can reduc e p erfor ma nce o r re sult i n lin k failu res be twee n the devices. To maximize performance, choose one of these methods for configuring the ports:

• Allow the ports to autonegotiate both speed and dupl ex for 10/100 por t s and

only speed for 10 / 100/1 000 port s.

• Set the speed and d uplex pa ram eters on both e nds of the c onne ction .

Caution To comply with the intrabuilding lightning surge requirements, intrabuilding

wiring must be shielded, and the shield for the wir ing must be grou nded at both ends.

Caution To prevent electrosta tic- di sch arge (ESD ) d ama ge, fo llow your nor ma l boa rd an d

component han dl ing pro cedu res .

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Chapter 3 Installing the Switch

To con nect the sw itch to 10BASE-T, 100BASE-TX, or 1000BASE-T devices, follow these s teps :

Step 1 When connect ing to se rvers, wo rkstat ions, and ro uter s, inse rt a tw iste d-p air

straight-through cable in a front-panel RJ-45 connector, as shown in Figure 3-15. When connecting to switches or repeaters, insert a twisted-pair crossover cable. (See the Appendix A, “Specifications,” for cable-pinout descr iptions. )

Note When connect ing to 10 00BASE-T d evices, be su re to use a f our twi sted -pa ir,

Category 5 cable.

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

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

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

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STATUS Catalyst 2948G

98654

3-21

Connecting a Terminal to the Console Serial and Ether net Management Ports

Step 3 Observe the port STATUS LED:

• The LED turns ambe r while Span ning Tree Protocol (STP) di scovers the

network topology and searc hes for loop s. This pr ocess takes abou t 30 seconds.

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

established lin k.

The LED does not light when the target device is not turned on, a cable problem exists, or a problem exists with the adapter installed in the target device.

If the STATUS LED does not turn gree n or does not l ight at all, see

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

problems.

Step 4 Reconfigure an d resta rt the t arget device if necessa ry. Step 5 Repeat Steps 1 through 4 to con nect ea ch port.

Chapter 3 Installing the Switch

Connecting a Terminal to the Console Seri al and Ethernet Management Ports

The console serial and Ethernet management ports are located on the front panel of the Cataly st 2948G, 2948G - GE-T X, an d 2980G swi tches . T he se port s u se an RJ-45 media-de pende nt int erfac e cr ossed- over (MDI X) c onn ect or, as shown in

Figure 3-16. For informat ion abou t port p inouts, se e Appendix A, “Specifications.”

The Catalyst 2948G switches have a 10BASE-T management port. The Catalyst 2948G-GE-TX an d 2 980 G-A swit ches have a 10/100BASE-T management port.

Note The MDIX Ethern et ports are crossed over intern ally. For an MDI-to-MDI or

MDIX-to-MDIX connection, use a crossover cable. For an MDI-to-MDIX connection, use a straight-through cable, which allows the Tx pins to connect with the Rx pins.

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Figure 3-16 Ethernet Cable with RJ-45 Connector

Verifying Switch Operation

After you have connected all the interfaces, check all connections, and then perform the follow ing steps to po we r on the system to v erify that it is operati onal:

Step 1 Before powering on the system, make sure the conne ctor is inst alled secure ly in a

grounded outlet at the power-source en d of the power cord a nd that the source power is within the range labeled on the back of the switch. When two power supplies are present , make su re that th e second cord is conn ected t o a separa te line from the first, if possible.

Verifying Switch Operation

98459

Step 2 Check th e co nsole te rm inal and m a ke su re i t i s powered o n. Step 3 Conne ct th e power cords to th e swi tch. Step 4 Verif y that the PSI or PWR LE Ds on th e power supply fron t panel is green . Step 5 Listen for the system fans to ensure that they are operational. Step 6 While the system initializes, check that the STATUS LED on the supervisor

engine is amber until the boot is complete.

Note Many of the interface LE Ds do no t i llu mina te un til you configur e t he

interfaces.

When the system boot is complete (it takes a few seconds), the supervisor engine begins to initialize the interfaces. During this initialization, the interface LEDs flash on and off. When initialization is complete, the console screen displays a script and sys tem ba nn er.

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Verifying Switch Operation

Note When interface LEDs are on, the interf ace ports may not be functio nal or enabled .

Although the LEDs for many interface types might turn on at system startup, they do not indicate an accurate status until the interface is configured.

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

“Troubleshooting the Inst allatio n.”

Chapter 3 Installing the Switch

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Warning

CHAPTER

Configuring the Gigabit Etherne t Ports

Before you install, operate, or service the sy stem, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

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

Statement 1030

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This chapter describes how to configure the Gigabit Ethernet ports on the Catalyst 2948G and 2980G switches and how to configure the small form-factor-pluggable (SFP) module slot on the Catalyst 2948G-GE-TX switches. The chapter contains these sections:

• Installing, Removing, and M ainta ini ng G BIC s, page 4-2

• Connecting To an SFP Module, page 4-12

The Gigabit Etherne t ports can be configured wit h any combina tion of GBIC s. The Gigabit Ethernet ports on these modules are used primarily for backbone interconnection o f othe r high- perf orm ance s wit che s and ro uter s.

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Chapter4 Configuring the Gigabit Ethernet Ports

Installing, Removing, and M ain ta ining GBICs

Installing, Removing, and Maintaining GBICs

The following sections describe Gigabit Interface Converters (GBICs) and how to install, remove, and maintain them:

• GBIC Features , pag e 4-2

• Port Cabling Specifications, page 4-4

• GBIC Optical Power Characteristics, page 4-5

• GBIC Cabling Restricti ons, page 4-5

• Installing GBICs, page 4-6

• Removing GBICs, page 4-9

• GBIC Maintenanc e Guide lines , page 4-10

• Patch Cord, page 4-10

GBIC Features

Warning

Because invisible laser radiation may be emitted from the aperture of the port when no cable is connected, avoid exposure to laser radiation and do not stare into open apertures.

Statement 70

GBICs (see Figure 4-1) are hot -swappabl e i nput /out put devices t hat pl u g into a Gigabit Ethernet switc hing modul e, linking t he module with a fiber-optic network. The GB ICs use SC- type co nne ctor s a nd pl u g in to c onn ect ors on t he module. Yo u ca n in st all a ny co mb inati on of G BI Cs in t he G iga bit E ther ne t switch in g m o du le .

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Figure 4-1 GBIC Module

Receiver Transmitter

Table 4-1 lists the GBI C modul es tha t a re su ppo rted by t he C atal yst 2 948G an d

2980G switches.

Table 4-1 Supported GBIC modules

GBIC Type Model Number

Installing, Removing, and Maintaining GBICs

11825

Fiber-optic 1000BASE-SX WS-G5484= Fiber-optic 1000BASE-LX/LH WS-G5486= Fiber-optic 1000BASE-ZX WS-G5487= Copper 1000BASE-TX GBI C WS-G5483= Coarse Wave Division Multiplexing (C WDM)

fiber-optic 1000BASE-X GBIC

CWDM-GBIC-1470= CWDM-GBIC-1490= CWDM-GBIC-1510= CWDM-GBIC-1530= CWDM-GBIC-1550= CWDM-GBIC-1570= CWDM-GBIC-1590= CWDM-GBIC-1610=

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

1000BASE-LX standard. However, their higher optical quality allows them to reach 10 kilomete rs over single-mo de fiber (SMF) vers us the 5 kilometer s specified in the standard.

Other GBIC me dia type s m ay b e support ed as a dditi onal tech nol ogy be c omes available.

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Installing, Removing, and M ain ta ining GBICs

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

third-party vendors.

Port Cabling Specifications

Table 4-2 provides cabling specifications for the GB ICs. The mi nimum ca ble

distance for a ll GBIC s l ist ed ( MMF [ multi mode fiber] and SM F) is 6. 5 f eet ( 2 meters).

Note For information a bout th e Coarse Wave D ivision Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

Chapter4 Configuring the Gigabit Ethernet Ports

Table 4-2 GBIC Port Cabling Specifications

GBIC Wavelength1 (nm)

850 MMF 62.5 160 722 ft (220 m)

Fiber Type

Core Size (microns)

Modal Bandwidt h (MHz/km)

Maximum Cable Distance

62.5 200 902 ft (275 m )

50.0 400 1640 ft (500 m)

50.0 500 1804 ft (550 m)

LX/LH 1300 MMF

62.5 500 1804 ft (550 m)

50.0 400 1804 ft (550 m)

50.0 500 1804 ft (550 m)

SMF 9/1 0 – 6.2 mi (10 km)

ZX 1550 SMF 9/10 – 43.5 mi (70 km)

SMF

1. Nominal fiber specification wavelength.

2. MMF only.

3. Patch cord required (refer to the “Patch Cord” section on page 4-10 fo r de ta il s).

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

– – 62.1 mi (1 00 km)

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GBIC Optical Power Characteristics

Table 4-3 provides the GBIC op tic al power ch arac teri stic s.

Note For information a bout th e Coarse Wave D ivision Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

Table 4-3 GBIC Optical Power Characteristics

Installing, Removing, and Maintaining GBICs

Parameter

Transmitter output p ower (min/max)

Receiver maximum input power

Receiver sensitivity –17 dBm –19 dBm –2 3 dBm Channel insertion loss

50/125 micron

62.5/125 mi cron MMF 3.2 dBm 6 dBm – 9/10 micron SM F – 6.5 dB m 21.5 dBm

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

GBIC Cabling Restrictions

You must observe the following fiber-optic cabl ing restrict ions whe n using GBICs:

MMF

1000BASE-SX (WS-G5484)

1000BASE-LX/LH (WS-G5486)

1000BASE-ZX (WS-G5487)

0/–9.5 dBm –3/–9.5 dBm 0/4.77 dB m

0 dBm –3 dBm –3 dBm

3.4 dBm 4.4 dBm –

• The minimum cablin g distanc e for 1000BASE-SX and 10 00BASE-LX/LH

GBICs is 6.5 feet (2 mete rs).

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

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

you must install a mode-conditioning patch cord between the MMF fiber-optic network and the GBIC. The mode-conditioning patch cord (CAB-GELX-625 or equivalent) is required to comply with IEE E standards. See the “Patch Cord” section on page 4-10 fo r more info rmat ion.

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

fiber-optic network and t he r eceiving p ort on the 10 00BASE-ZX G BI C a t each end of the link if the link length is less than 15.5 miles (25 km).

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

fiber-optic network and t he r eceiving p ort on the 10 00BASE-ZX G BI C a t each end of the link if the link is greater than 1 5.5 miles ( 25 km), b ut less than 31 miles (50 km ).

Installing GBICs

Chapter4 Configuring the Gigabit Ethernet Ports

This section describes how to install GBICs.

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

the GBIC. A GBIC has a lif etime of 10 0 to 500 removals and inserti ons.

A switch can be shippe d with or w ithou t GBIC s inst alled.

Caution When rem oving or in sert ing a GB IC , always w ear a n E SD w rist stra p conn ec te d

to the ESD wris t strap conne cto r. For more information about ESD, refe r to the Site Preparation and Safety Guide.

Note GBICs are online swappa ble.

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To install a GBIC, perform these steps:

Step 1 Remove the GBIC from its protective packaging. Step 2 Verif y that the GBIC i s the corre ct type for your net work by check ing the pa rt

number. The part number in dicates whe ther it is 10 00BASE-SX, 1000BASE-LX/LH , or

1000BASE-ZX.

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

the slot on the front of the modu le. See Figure 4- 2 for GBIC installation on a Catalyst 2948G switch. See Figure 4-3

for GBIC installation on a Catalyst 2980G switch.

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

Installing, Removing, and Maintaining GBICs

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

CONSOLE

1000Base - X

10BaseT

Plug GBIC

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

STATUS

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

SLOT 2

SLOT 3

Plug GBIC

GBIC is locked into the slot.

298

Chapter4 Configuring the Gigabit Ethernet Ports

98458

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

GBIC and save it for future use.

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

you are ready to conn ect the cable. The plug pr o t ec ts the GBI C opti cal b or es an d cable from c on tam in at io n .

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

if necessary. Insert the connector into the GBIC. When you plug the SC-type co nnector into the GBIC, make sure that both the Tx

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

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Figure 4-4 Connecting the SC-Type Connector

Keys

Light out

of fiber

Installing, Removing, and Maintaining GBICs

Cable

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

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

Removing GBICs

Light into

fiber

Key slots

Receptacle

Receiver

Transmitter

17110

Note If you are removing th e GBIC from a n onlin e switch , enter t he show port

command to verify the type of GBIC that is installed.

To remove a GBIC, perform these steps:

Step 1 Disconne ct the fiber-optic c able fro m the GBIC SC-type conn ector. Step 2 Release the GBIC fro m the slot b y s imul taneo usly squee zing the plastic tabs (one

on each side of the GBIC).

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Step 3 Slide the GBIC out of the slot. Step 4 Install the plug into the GBIC optical bores and place the GBIC in its protective

packagin g.

GBIC Maintenance Guidelines

Follow these GBIC maintenance guidelines:

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

board and comp one nt handl ing pr oced ure s.

• GBICs are dust sensi tive. When th e GB IC i s stor ed o r wh en a fibe r-optic

cable is not plugg ed in, a lways keep plug s in t he G BI C o ptica l bo res.

Chapter4 Configuring the Gigabit Ethernet Ports

Patch Cord

Note We do not recomm end u sing the LX /LH GB IC with MMF withou t a patch cord

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

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

picked up on the ferrule s of the optic al con necto rs. Use an al cohol swab o r Kim-Wipe to clean the ferrul es of the optical conne ctor.

When using the LX/LH GBIC with a 62.5-micron diameter core size MMF, you must install a mode-c ondition ing patch co rd (C isco produ ct numbe r CAB-GELX-625 or e quivalent) be tween the GB IC an d th e MM F ca ble on b oth the transmit and receive ends of the link. The patch cord is required for link distances greater t han 984 fee t (300 meter s).

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

link distances could not be ac hieved with certain types of fiber-optic ca ble d ue to a problem in the center of some fiber-optic cable cores. The solution is to launch light from the laser at a precise offs et fro m the cente r by using the patch cord. At

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Chapter 4 Configuring the Gigabit Ethernet Ports

the output of the patch cord, the LX/L H GBIC is compliant wi th the IEEE 802.3 z standard for 1000BASE-LX. For a detailed descr iption of t his proble m, refe r to

Appendix C, “Differentia l M ode D el ay.”

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

the standards listed in Appendix A, “Specificatio ns.” Equivalent cables should also meet these standards.

Patch Cord Configuration Example

Figure 4-5 shows a typical configu ratio n u sing pat ch c ords.

Figure 4-5 Patch Cord Configuration

Installing, Removing, and Maintaining GBICs

Patch

cord

1000BASE-LX/LH

port

Patch Cord Installation

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

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

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

Building

cable plant

Patch panel

Link span greater than 984 ft

(300 m)

Patch panel

Patch

cord

1000BASE-LX/LH

port

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Connecting To an SFP Modul e

Figure 4-6 Patch Cord Installation

To equipment To cable plant

Connecting To an SFP Module

This section describes how to connect to an SFP module. For instructions about how to install or remove an SFP module, refer to the Cisco Small Form-Factor Pluggable Modules Installation Notes (not orderable but is available on Cisco.com) and to the documentation that came with your SFP module.

Chapter4 Configuring the Gigabit Ethernet Ports

13089

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

Table 4-4 Supported SFP Modul es

SFP Type Model Number

Fiber-optic 1000BASE-LX GLC-LS-SM= Fiber-optic 1000BASE-SX GLC-SX-MM = Fiber-optic 1000BASE-ZX GLC-ZX-SM= Copper 1000BASE-T GLC-T= Coarse Wave Division Multiplexing

(CWDM) fiber-optic SFP modules

CWDM-SFP-1470= CWDM-SFP-1490= CWDM-SFP-1510= CWDM-SFP-1530= CWDM-SFP-1550= CWDM-SFP-1570= CWDM-SFP-1590= CWDM-SFP-1610=

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Chapter 4 Configuring the Gigabit Ethernet Ports

The restrictions are that each port must match the wave-length specifications on the other end of the cable, and the cable must not exceed the recommended cable length for reliable communications. Table 4-5 lists these recommendations.

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

SFP Module

Wavelength (nanometers) Fiber Type

Core Size (micron)

Connectin g To an SFP Module

Modal Bandwidth (MHz/km) Cable Distance

1000BASE-SX 850 MMF 62.5

62.5

50.0

1000BASE-LX/LH 1300 MMF

62.5

50.0

SMF

50.0 9/10

160 200 400 500

500 400 500 —

722 ft (220 m) 902 ft (275 m) 1640 ft (50 0 m) 1804 ft (55 0 m)

1804 ft (55 0 m) 1804 ft (55 0 m) 1804 ft (55 0 m)

6.2 mi (10 km)

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

100 km)

1. A mode-conditi oning patc h cor d i s req uired. Us ing an o rd inary p atc h cor d wit h MM F, 1000BA SE-LX/LH SFP mo dule s, 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 mo de-conditioning patch cor d is required for link distances greater than 984 feet (300 m).

2. 1000BASE-ZX SFP modules can reach up to 100 km by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on the fiber quality, the number of splices, and the connectors.

Note For information a bout th e Coarse Wave D ivision Multiplexing (CWDM), refer to

the Cisco CWDM GBIC and CWDM SFP Installation Note.

The 1000BASE-T (copper) SFP module is used to establish a Gigabit Ethernet connection throu gh a Category 5 Categor y 5 cable.

Use only Cisco SFP modules on the Catalyst 2948G-GE-TX switch. Each SFP module has an intern al serial EEPROM that is encoded with security infor mation. This encoding provides a way for Cisco to identify and validate that the SFP module meets the requi rem ents fo r th e switc h.

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Connecting To an SFP Modul e

For more information about these SFP modules, refer to your SFP modu le documentation and to the Cisco Small Form-Factor Pluggable Modules Instal la ti o n Notes (n ot o rde rabl e but is available o n C isco .c om.)

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

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

rubber caps f rom the the f iber -optic cable u ntil yo u are r eady to connect t he cab le. The plugs and caps protect the SFP module ports and cables from contamination and ambient li ght.

Before connecting to an SFP module, be sure that you understand the port and cabling stipulations in Table 4-5. See Appendix A, “ Spe cificat ions, ” for information about the L C on th e SFP m odu les for fiber-optic connections .

Chapter4 Configuring the Gigabit Ethernet Ports

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

Warning

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

Statement 272

Step 1 Remove the rubber plugs fr om the modu le port and fiber-opti c cable, an d store

them for future use.

Step 2 Insert on e end of the fiber-optic cab le into the SFP mo dule port , as shown in

Figure 4-7.

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Chapter 4 Configuring the Gigabit Ethernet Ports

Figure 4-7 Connecting to an SFP Module Port

Step 3 Insert the other cable end in a fiber-optic receptacle on a target device. Step 4 Observe the port LED.

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

established lin k.

Connectin g To an SFP Module

98656

• The LED turns ambe r while the STP di scovers the network topo logy and

searches for loops. This proc ess takes abo ut 30 s econds, and then the p ort LED turns green.

• If the LED is off, th e t arget device migh t no t be tu rned on, the r e migh t be a

cable problem, or there might be problem with the adapter installed in the target de vice. See Chapter 5, “Troubleshootin g the Installation,” for solutions to cabling problems.

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Connecting To an SFP Modul e

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

The Gigabit Ethernet ports on these modules are used primarily for backbone interconnection o f othe r high- perf orm ance s witc hes a nd ro ut ers.

After you have connected all the interfaces, check all connections, and then perform the steps desc ribed in the “Verifying Switch O pera tio n” se ctio n o n

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

Chapter4 Configuring the Gigabit Ethernet Ports

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CHAPTER

Troubleshooting the Installation

This chapter d escri bes how to tro uble shoo t t he C ata lyst 2948G , 2 948G -GE -TX , and 2980G swit ch i nstal lations. I t c ontai ns th ese se ct ions:

• Getting Started, page 5-2

• Problem Solving to the Syst em Comp one nt L evel, page 5-2

• Identifying Star tup Problems , page 5-3

• Troubleshooting the Power Supply, page 5-4

• Contacting Customer Service, page 5-5

If you have problems starting up your system, use the informa tion in this chapter to help isolate the cause. Problems with the initial st artup are of ten caused b y poor or improper c onnec tions. Temperature c onditions abo ve the maximu m accep table level are rarely the source of problems at startup; however, environmental monitoring funct ions are i nclude d in the foll owing sections bec ause they als o monitor DC-line voltages.

For configuration questions or problems, refer to the software configuration guide or the command re fere nce f or your swit ch.

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Getting Started

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

• Power supplies are supplying power to the system.

• On Catalyst 2948G an d 2980 G swit ches, the s ystem fan a ssemb ly is

operating.

• On Catalyst 2 948G- GE-T X sw itch es, t he bl ower is ope rat ing.

If all of these conditions are met and the hardware installation is complete, refer to the software configuration guide and the command reference for your switch to troubleshoot the software. However, if any of these conditions is not me t, use the procedures in this chapter to isolate and, if possible, resolve the problem.

Chapter5 Troubleshooting the Installation

Problem Solving to the System Compo nent Level

The key to success when troubleshooti ng the system is to isolate the problem to a specific system component. The first step is to compare what the system is doing to what it should be doing. Because a startup problem can usually be attributed to a single component, it is more efficient to isolate the problem to a subsystem rather than troubleshoot each component in the system separately.

The switch consists of the following subsystems:

• Power supply—Includes the power supp lies and power suppl y fans (see

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

• Fans—The fan assemb ly sh ould op er ate whe never system p ower is on. T he

fan assembly continues to operate even when the environmental monitor shuts the system down bec ause of an overtempe ra ture or overvoltage condition (althou gh it will shut down in the event of a power supply shutdown).

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

• Determine if the software is reporting a temperature problem.

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

• Check for any obstruction s that might be restric ting the ai rflow throu gh the

switch.

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If you encounter a pro blem in pe rform ing any of the ab ove checks, you shoul d contact a cus tomer s ervic e repr esent ative.

Identifying Startup Problems

LEDs indicate all system states in the startup sequence. By checking the LEDs, you can determine when and where the system failed in the startup sequence. If you have problems after the switch is powered on and the startup sequence is complete, refer to the software configuration guide for your switch.

After you co nnec t t he p ower cord to th e Ca taly st 29 48G , 29 48G -GE -T X, or 2980G switches, follow these steps:

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

the “Troubleshooting the Power Supply” section on page 5-4. If you det ermin e that the power supplies are functioning normally and that the fans are faulty, contact a cus tomer s ervic e repr esent ative.

Identifying Startup Problems

Step 2 Check the power supply LEDs as follows:

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

to the switc h. T he LED should r emain on du ring no rm al s y stem o pera tio n.

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

section on page 5-4.

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

• The STATUS LED flashes amber onc e and stays a mber during diagnosti c

boot tests. It turns green when the switch is operational (on line). If the system software is unable to start up, this LED stays amber.

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

when the module is operational (on line). If no signal is detected, the Link LED turns off. The Link LED blinks am ber co ntinuou sly if the port i s bad.

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

may occur too quickl y to be detected vi sually.

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

for instructions.

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Chapter5 Troubleshooting the Installation

Troubleshooting the Power Supply

Step 4 If the boot infor mati on and system banne r are not displa yed, verify tha t the

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

Troubleshooting the Power Supply

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

Step 1 Check the power supp ly LED:

Note Power supply LEDs are label ed PSI , PWR, and RPS.

• If the LED is ei ther o ff or a mber, unplug the p ower cord , an d then pl ug the

power cord in again.

• If the LED remains off, there migh t be a pr obl em wit h the AC source, or the

power cable. Con nect th e power co rd to a no t her p ower so urce ( if o ne i s available).

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

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

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

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

If the LED is a mb er o r o ff, rep eat the previous pr oc ed ure to tro uble sho ot the second power supply.

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

standby mode. Press the Standb y/Activ e button on the RPS to put it in acti ve mode and the LED should th en turn to g reen.

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Chapter 5 Troubleshooting the Ins tal la ti on

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

simultaneously. Disconnect power from the internal power supply before turning the power on fo r the RP S. The R PS con tains mu ltipl e power supplies for redundant power protection. Refer to the RPS documentation for installation and configuration details.

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

for instructions.

Contacting Customer Service

If you are unabl e t o sol ve a st artup p rob lem aft er u si ng t he t roubl es hootin g suggestions in this chapter, contact a customer service representative for assistance and furt her inst ruct ions. Bef ore y ou ca ll, have the fol lowing information rea dy to help your cu stomer se rvice repr esenta tive assist you as quickly as possible:

• Date you received the switch

• Chassis serial number (l ocated on a label on the right of t he rear panel of the

chassis)

• Type of soft ware a nd r elease numbe r

• Maintenance agreement or warranty information

• Brief description of the problem

• Brief explanat ion of the s teps you h ave already t aken t o isol a te an d res ol ve

the problem

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Contacting Customer Service

Chapter5 Troubleshooting the Installation

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Specifications

This appendix p rovides ma nage ment p ort an d te chni cal spe cificati ons for t h e Catalyst 2948G, 2948G -GE- TX , a nd 2980G s wit che s.

Console Serial Port

The console serial port is an RJ-45 receptacle. Data terminal ready (DTR) and data set ready (DSR) handsh ake signals ar e support ed on this port . The Requ est T o Sen d (R TS) sign al tracks th e state of the Clear To Send (CTS) input . Table A-1 lists the console port pinouts.

APPENDIX

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Table A-1 Console Port Pinouts

Pin Signal Direction Description

1 RTS output request to se nd 2 DTR o utput data terminal ready 3 TXD output transmit data 4 GND 5 GND 6 RXD input receive data 7 DSR input data set ready 8 CTS input clear to send

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Appendix A Specifications

10BASE-T and 10/1 00BASE-T Ethernet Management Ports

10BASE-T and 10/100BASE-T Ethernet Managemen t Ports

The Ethernet management port on each switch is an RJ-45 receptacle with a Link Status LED. Table A-2 lists the port pinouts.

Table A-2 10BASE-T Port Pinouts

Pin Signal Direction Description

1 RXD+ input receive data 2 RXD- input receive data 3 TXD+ output transmit data 4 unused 5 unused 6 TXD- output transmit data 7 unused 8 unused

Catalyst 2948G Switch Specifications

Table A-3 lists the Catalyst 2948G specifications.

Table A-3 Catalyst 2948G Switch Specifications

Item Specification

Environmental

Temperatur e, am bi en t operating

Temperatur e, am bi en t nonoperating and stor ag e

32°F (0°C) to 104°F (40°C)

–40°F (–40°C) to 1 67°F (7 5°C)

Humidity (RH), ambient (noncondensin g) operat ing

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10% to 90%

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Appendix A Specifications

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

Item Specification

Environmental (continued)

Catalyst 2948G Switch Specifications

Humidity (RH), ambient

5% to 95% (noncondensin g) nonoperatin g and st orag e

Altitude,

0 to 65621.7 ft (0 to 2,000 m) operating and n onopera ting

Switching Components

Backplane 12 Gbps full duplex Microprocessor 150-MHz R5 000 RISC–Y 2K c ompl iant Memory 64 MB SDRAM, 12 MB Flash (o nbo ard),

512 KB NVRAM, 8 MB synchronous SRAM,

256 bytes serial EE PROM

Physical Characteristics

Dimensions (H x W x D) 2.625 x 17.5 x 15 in. (6.6 x 44 x 38 cm) We ight 13 lb. (5.9 kg)

AC Power

Power supply output 120 W

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System power dissipation 189 W System heat dissipation 645 BTU/hr. AC input current 2.5 A maxim um at 100 VAC

1.3 A maximum at @ 240 VAC AC frequency 50 to 60 Hz KVA rating 0.20 Airflow Front side in , back side o ut

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Catalyst 2948G Switch Specification s

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

Item Specification

Standards Compliance

Compliance CE Marking Safety UL

EMI

Appendix A Specifications

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

IEC

60950

CFR6 47, part 15 Class A (FCC), ICES7 003 Class A with UTP cables, EN55022 Class A with UTP cables, CISPR22 cables, AS/NZS 3548 Class A with UTP cables, and VCCI

Class A with UTP cables EN55024, ETS 300 386 EN55022 Class B with FTP cables, CISPR 22

Class B with FTP cables, AS/NZS 3548 Class B with FTP cables, and VCCI Cla ss B with FTP cables

Class A with UTP

1. UL = Und erw ri ters L abo rato ry

2. CSA = Canadian Standards Association

3. EN = European Norm

4. IEC = International Electrotechnical Commission

5. EMI = electromagnetic interference

6. CFR = Code of Federal Regulations

7. ICES = International Commerce Exchange Systems

8. CISPR = Comite International Special des Perturbation Radioelectriques

9. VCCI = V olu nta ry C o ntr ol C oun c il fo r I nfo rm ati o n Tec h nol ogy Eq uip m en t

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Cisco 2948G - Catalyst Switch, Catalyst 2984G, Catalyst 2948G-GE-TX, Catalyst 2980G Hardware Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual