Cisco Systems 4900M User Manual

Cisco Catalyst 4900M Switch Installation Guide

January 2008
Americas Headquarters
Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000
Fax: 408 527-0883
Text Part Number: 78-18350-01
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR
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Cisco Catalyst 4900M Switch Installation Guide
Copyright © 2008 Cisco Systems, Inc. All rights reserved.
Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco,
Systems, Inc. and/or its affiliates in the United States and certain other countries.

CONTENTS

Preface ix
Audience ix
Organization ix
Related Documentation x
Conventions x
Statement 1071—Warning Definition xii
Obtaining Documentation, Obtaining Support, and Security Guidelines xx
CHAPTER
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1 Product Overview 1-1
Catalyst 4900M Switch Applications 1-1
Catalyst 4900M Switch Software Features 1-6
Hardware System Features 1-6
Switch Components 1-7
Traffic Ports 1-7 TwinGig Modules 1-7 Rear Chassis Connections and Features 1-8 Front Panel LEDs 1-9 Chassis Cooling 1-11 Power Supplies 1-12 Environmental Monitoring of the Power Supplies 1-13 Power Management for the Catalyst 4900M Switch 1-13
Power Management Modes 1-14
Serial Number Location 1-15
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Contents
CHAPTER
CHAPTER
2 Site Planning 2-1
Site Environmental Requirements 2-1
Site Power Requirements 2-2
Preinstallation Requirements 2-3 Warnings and Cautions 2-3 EMI Recommendations 2-4 Power Requirements and Heat Dissipation 2-4
Grounding Requirements 2-4
Safety Overview 2-5
Ensuring Safety 2-5 Working Safely with Electricity 2-6 Preventing Electrostatic Discharge Damage 2-7
Site Planning Checklist 2-7
3 Installing the Switch 3-1
Checking the Contents 3-1
Rack-Mounting the Switch 3-2
Rack-Mounting Guidelines 3-3 Lifting the Chassis Safely 3-4 Required Installation Tools 3-5 Rack-Mounting the Catalyst 4900M Switch 3-6
vi
Connecting Power to the Catalyst 4900M Switch 3-11
Connecting DC Power to the Catalyst 4900M Switch 3-13
Optical Connections 3-15
Configurable Modules 3-15
Required Tools 3-16 Removing Switching Modules 3-16 Installing Switching Modules 3-19
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Removing and Replacing the Power Supply 3-22
Required Tools 3-23 Removing a Power Supply 3-23 Installing a Power Supply 3-24
Removing and Replacing the Fan Assembly 3-25
Required Tools 3-25 Removing the Fan Assembly 3-25 Installing the Fan Assembly 3-26 Verifying the Installation 3-27
Contents
CHAPTER
APPENDIX
APPENDIX
4 Troubleshooting the Installation 4-1
Getting Started 4-1
Problem Solving to the System Component Level 4-2
Identifying Startup Problems 4-2
LED Readings 4-3
Troubleshooting the Power Supply 4-5
Contacting Customer Service 4-6
A Specifications A-1
Console Port A-1
10/100/1000BASE-T Management Port A-2
Catalyst 4900M Switch Specifications A-2
B Compliance Information and Translated Safety Warnings B-1
Regulatory Standards Compliance B-1
European Directives B-4
Statement 275—Declaration of Conformity with Regard to the Directives 73/23/EEC and 89/336/EEC as amended by Directive 93/68/EEC B-4
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EMC Class A Notices and Warnings B-6
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Contents
Class A Notice for FCC B-6 Class A Notice for Canada B-6 Statement 340—Class A Warning for CISPR22 B-7 Statement 191—VCCI Class A Warning for Japan B-9 Statement 256—Class A Warning for Hungary B-10 Statement 294—Class A Warning for Korea B-10 Statement 257—Class A Notice for Taiwan and Other Traditional Chinese
Markets B-11 Statement 371—Power Cable and AC Adapter B-11
Translated Safety Warnings B-11
Statement 258—Fan Tray Removal Warning B-12 Statement 1003—DC Power Disconnection B-14 Statement 1004—Installation Instructions B-15 Statement 1006—Chassis Warning for Rack-Mounting and Servicing B-18 Statement 1008—Class 1 Laser Product B-26 Statement 1011—Staring into Laser Beam B-28 Statement 1017—Restricted Area B-30 Statement 1019—Main Disconnecting Device B-33 Statement 1024—Ground Conductor B-35 Statement 1028—More Than One Power Supply B-37 Statement 1029—Blank Faceplates and Cover Panels B-40 Statement 1030—Equipment Installation B-45 Statement 1040—Product Disposal B-47 Statement 1045—Short-Circuit Protection B-50 Statement 1051—Laser Radiation B-53 Statement 1072—Shock Hazard from Interconnections B-56 Statement 1074—Comply with Local and National Electrical Codes B-60
Statement 1075—Hazardous Voltage or Energy Present on DC Power Terminals B-61
I
NDEX
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Audience

Preface

This preface describes the audience, organization, and conventions of the Cisco Catalyst 4900M Switch Installation Guide and provides information on how to
obtain related documentation.
Only trained and qualified service personnel (as defined in IEC60950 and AZ/NZS 60950) should install, replace, or service the equipment.
Organization
This guide is organized as follows:
Chapter Title Description
Chapter 1 Product Overview Describes the hardware features and functionality of the
Catalyst
Chapter 2 Site Planning Describes how to prepare your site for the installation of the
switch.
Chapter 3 Installing the Switch Details how to install the Catalyst 4900M switch.
Chapter 4 Troubleshooting the
Installation
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Provides troubleshooting guidelines for the initial hardware installation and suggests steps to help isolate and resolve problems.
4900M switch.
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Chapter Title Description
Appendix A Specifications Lists the Catalyst 4900M switch system specifications.
Appendix B Translated Safety
Warn in g s
Repeats in multiple languages the warnings in this guide.
Related Documentation
Refer to the following documents for additional information about configuring the Catalyst
Software Configuration Guide—Catalyst 4500 Series.
Command Reference—Catalyst 4500 Series.
System Message Guide—Catalyst 4500 Series.
The Catalyst 4900M switch uses software that also runs on the Catalyst 4500 series switches. Refer to the version of these documents appropriate for your software.
4900M switch:
Preface
Conventions
This docum ent uses the fo llow ing conventions:
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Convention Description
boldface font C om m ands and keyw ords are in boldface.
italic font Argum ents for which you su p ply values are in italics.
[ ] Elem ents in sq uare brackets are optional.
{ x | y | z } Alternative keyw ords are grouped in braces and
sep arated by vertical bars.
[ x | y | z ] Optional alternative keyw ords are grouped in brackets
and sep arated by vertical bars.
string A non-quoted set of characters. Do not use quotation
marks around the string, because the string will include the quotation marks.
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Convention Description
screen font Terminal sessions and inform ation that the system
disp lays are in
boldface screen
font
italic screen
font Argum ents for which you su pp ly values are in
In fo rmation that you must enter is show n in boldface
font.
screen
screen
font.
Ctrl- Ctrl- represents the key labeled Control—for exam ple,
the key com bination Ctrl-D means to hold dow n the C ontro l key while you press the D
< > Characters that do not print, such as passw ords, are
show n within angle brackets.
Notes use the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to
material not covered in the publication.
screen font.
italic
key.
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Cautions use the following conventions:
Caution Means reader be careful. In this situation, you might do something that could
result in equipment damage or loss of data.
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Warnings use the following conventions:
Statement 1071—Warning Definition
Preface
Warning
Waarschuwing
Varoitus
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.
SAVE THESE INSTRUCTIONS
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
TÄRKEITÄ TURVALLISUUSOHJEITA
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.
Statement 1071
xii
SÄILYTÄ NÄMÄ OHJEET
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Attention
Warnung
Avvertenza
IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS
WICHTIGE SICHERHEITSHINWEISE
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.
IMPORTANTI ISTRUZIONI SULLA SICUREZZA
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Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
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Preface
Advarsel
Aviso
¡Advertencia!
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
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES
INSTRUCCIONES IMPORTANTES DE SEGURIDAD
Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.
xiv
GUARDE ESTAS INSTRUCCIONES
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Preface
Varning!
VIKTIGA SÄKERHETSANVISNINGAR
Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.
SPARA DESSA ANVISNINGAR
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Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
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Preface
Advarsel
VIGTIGE SIKKERHEDSANVISNINGER
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER
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Obtaining Documentation, Obtaining Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco Documentation, which also lists all new and revised Cisco documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
documents, see the monthly What’s New in Cisco Product
technical
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CHAPTER

Product Overview

This chapter describes the Catalyst 4900M switch, as well as system features and components.
This chapter contains these sections:
Catalyst 4900M Switch Applications, page 1-1
Catalyst 4900M Switch Software Features, page 1-6
Hardware System Features, page 1-6
Switch Components, page 1-7

Catalyst 4900M Switch Applications

The Catalyst 4900M switch (see Figure 1-1) is designed for top-of-rack server aggregation. It simplifies the transition from 1 GB to 10 GB attached devices in the data center. The Cisco Catalyst 4900M is a top of rack Ethernet switch optimized for mixing 10/100/1000 and 10 Gigabit Ethernet access devices. It is a fixed Cisco IOS based Layer 2+ switch with 8 fixed wire speed X2 ports on the base unit with 2 optional half card slots. The half card slots can accommodate the following cards in any combination:
1
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20-port wirespeed10/100/1000 (RJ-45) half card
4-port wire speed 10GbE (X2) half card
8-port (2:1) 10GbE (X2) half card (Twin Gig compatible)
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Catalyst 4900M Switch Applications
The half cards provide a wide variety of combinations of Gigabit Ethernet and 10 Gigabit Ethernet media types. The half slots also provide investment protection for further additions of 1 GE and 10 GE media.
Figure 1-1 Catalyst 4900M Switch
Chapter 1 Product Overview
1-2
232121
The modules that fit into the open slots are:
20-port 1 GE RJ-45 (WS-X4920-GB-RJ45=)
4-port X2 wire speed 10 Gigabit Ethernet (WS-X4904-10GE=)
8-port X2 2:1 oversubscribed 10 Gigabit Ethernet (WS-X4908-10GE=)
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Chapter 1 Product Overview
Figure 1-2 20-Port 1 GE RJ-45 (WS-X4920-GB-RJ45=)
1
2
Catalyst 4900M Switch Applications
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232118
1 Module Status LED 2 Port LEDs
Specification Description
Module type 10/100/1000BASE-T Fast Ethernet switching module
Port duplex mode Half or full duplex mode
Port speed 10, 100, or 1000 Mbps
Number of ports 20
Connector type RJ-45
Cable type Category 5
Power over Ethernet Not supported
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Chapter 1 Product Overview
Catalyst 4900M Switch Applications
Figure 1-3 4-Port X2 Wire Speed 10 Gigabit Ethernet (WS-X4904-10GE=)
1
2
232119
1 Module Status LED 2 Port LEDs
Specification Description
Module type 10 Gigabit X2 fiber Ethernet switching module
Port duplex mode Full duplex mode
Port speed 10 Gbps
Number of ports 4
Connector type SC type
Cable type MMF or SMF
1-4
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Chapter 1 Product Overview
Catalyst 4900M Switch Applications
Figure 1-4 8-Port X2 2:1 Oversubscribed 10 Gigabit Ethernet (WS-X4908-10GE=)
1
2
232120
1 Module Status LED 2 Port LEDs
Specification Description
Module type 10 Gigabit X2 or TwinGig fiber Ethernet switching
module
Port duplex mode Full duplex mode
Port speed 10 Gbps or 2 Gbps
Number of ports 8
Connector type SC type
Cable type MMF or SMF
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1-5

Catalyst 4900M Switch Software Features

Note When using TwinGig and X2 transceivers on this module, keep them grouped in
pairs as follows: 1-2, 3-4, 5-6, 7-8. Inserting a TwinGig or X2 transciever in any port will affect the capabilities of its partner port, and both will be set to handle the same type automatically. Mixing within a port group will not work. As an example, you would not be able to have an X2 in port 1 and a TwinGig in port 2 and expect both of them to function.
The Catalyst 4900M switch has a 320-Gbps, nonblocking, full-duplex switching fabric, providing 250 million packets-per-second of switching capacity for high-speed applications. The Catalyst Ethernet ports and other ports as configured.
A removable automatic variable speed fan tray for low-noise operation at room temperature and removable and redundant 1000 supplies provide fault-tolerance protection for the switch. See the
Power to the Catalyst 4900M Switch” section on page 3-11.
Chapter 1 Product Overview
4900M chassis has eight 10 Gigabit
W AC or 1000 W DC power
“Connecting
Catalyst 4900M Switch Software Features
For up-to-date information on software features, refer to the release notes and software configuration guide for your software release.

Hardware System Features

The Catalyst 4900M switch is a high-performance dedicated Ethernet switch that fully integrates into the Catalyst family of switches using Catalyst 4500 series system software.
The following is an overview of the Catalyst 4900M hardware features:
Eight 10 Gigabit Ethernet uplink ports using X2 interfaces
Serial console management port using an RJ-45 interface
A removable automatic variable speed fan tray for low-noise operation at
room temperature
Redundant and removable 1000 W AC or DC power supplies
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512-MB SDRAM (fixed)
128-MB embedded Flash memory
360-Gbps switching capacity, 250 million packets-per-second actual
forwarding rate
EtherChannel at 10/100/1000 Mbps, as well as 10 Gbps
Host and device USB 2.0 ports
Compact flash memory slot

Switch Components

This section describes the Catalyst 4900M hardware components.

Traffic Ports

There are eight 10-Gigabit Ethernet uplink ports using X2 interfaces and other traffic ports depending on the switching modules installed.
Switch Components

TwinGig Modules

On the WS-4908-10GE modules only, TwinGig converter modules may be used in place of X2 modules if you need to provide 1 GB SFP connections. When you insert the TwinGig into one port, its neighbor automatically converts to 1 GE interfaces whether it has a TwinGig installed or not, so you need to group your TwinGigs next to one another. The neighboring port to a TwinGig port cannot support an X2.
Installation documentation for Cisco TwinGig converter modules can be found at:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/hardware/i nstall/notes/1757202.html
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Switch Components

Rear Chassis Connections and Features

The Reset button is used to restart the switch. Use a paper clip or other small, pointed object to press the Reset button.
A console serial port (RJ-45) provides for switch management using standard console equipment. (See
Appendix A, “Specifications,” for the console and management ports.
The Management port on the rear panel offers the same TCP/IP based management services available via inband access (telnet SNMP etc.). IP address configuration via BOOTP is supported on the Management port; it also supports image download to the switch.
A USB connector is provided for future expansion.
The Compact Flash port accepts both 64-MB and 128-MB Type 1 compact Flash cards. You can use it for file transfer tasks such as loading a new software image. The Flash card is optional and can be obtained from third-party suppliers.
For more information, refer to Using the Compact Flash on the Catalyst 4500 Series Supervisor Engines at the following URL:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configura tion/notes/OL_2788.html
Figure 1-5.) A connector pinout table is provided in
Chapter 1 Product Overview
1-8
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Chapter 1 Product Overview
Figure 1-5 View of the Rear Panel
1 2 1 2 3
4 5 7 8
6
1 Input OK (power supply) 5 Console port 2 Output OK (power supply) 6 Management port 3 Fan Status LED 7 USB connection 4 Reset button 8 Compact Flash slot
Switch Components
232122

Front Panel LEDs

Figure 1-6 Front LEDs
1
2
3
4
1 PS1 LED 4 System LED 2 PS2 LED 5 10Gig port LEDs 3 Fan LED
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1-9
Switch Components
Chapter 1 Product Overview
The LEDs on the front and rear panel of the Catalyst 4900M switch (see
Figure 1-5 and Figure 1-6 ) provide status information as follows:
System LED indicates the operating state of the Catalyst 4900M switch.
PS1 LED indicates the internal power supply status.
PS2 LED indicates the internal power supply status.
FAN LED indicates the fan tray status.
A link status LED is below the 10-GB uplink ports.
A description of the LED functions is provided in Ta ble 1-1.
Ta b l e 1-1 LED Descriptions
LED Color or State Description
System
(front)
CON
(rear)
Green Red Flashing Yel low
Off
Green
Off
At startup, the Catalyst 4900M performs a series of diagnostic tests: All tests pass A test other than an individual port test fails System boot or diagnostic tests in progress System is in rommon mode or a power supply has failed Switch is disabled
10/100 BASE-T console port is in link-up state
10/100 BASE-T console port is in link-down state or not connected
1-10
MGT
Green
(rear)
Off
Cisco Catalyst 4900M Switch Installation Guide
There are no blinking, red, or yellow states for this port
10/100/1000BASE-T Management port is in link-up state
10/100/1000BASE-T Management port is in link-down state or not connected
There are no blinking, red, or yellow states for this port
78-18350-01
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