Cisco Systems WS-X6608-T1 User manual

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Cisco Catalyst 4900M Switch Installation

Guide

September 2010

Text Part Number: 78-18350-02

THE SPECIFICATIONS AND INFORMA TION REGARDI NG THE PRODUCT S IN THIS MA NUAL ARE SUBJEC T TO CHANGE WITHOU T NOTICE. AL L

STATEMENTS, INFORMATION, AND RECOMMEN DATIONS IN THIS MANUAL ARE BELIE VED TO BE ACCUR ATE BUT ARE PRESE NTED WITHOUT

WARRANTY OF ANY KIND, EXPRESS OR I MPLIED. USE RS MUST TAKE F ULL RESPONSI BILITY FOR THEI R APPLICATION OF ANY PRODUCT S.

THE SOFTWARE LICENSE AND LIM ITED WARRANTY FO R THE ACCOMPA NYING PRODUCT ARE SET FORTH IN T HE INFORMATION PACKET THAT

SHIPPED WITH THE PRODUCT AND ARE INCORPORAT ED HEREIN BY THI S REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SO FTWARE LICENSE

OR LIMITED WARRANTY, CONTACT Y OUR CISCO REPR ESENTATIVE F OR A COPY.

The following information is for F CC comp liance of Class A devic es: This equipme nt has been teste d an d found to com ply wi th the lim its f or a Class A digital device, p ursuant

to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equip ment is oper ated in a co mmercial

environment. This equ ipment g enerates, us es, and ca n radiate ra dio-fre quency ene rgy and, if n ot installe d and used in accordan ce with the instruction man ual, may cause

harmful interference to radio communications. Operation of this equipm ent in a residential area is likely to cause h armful interfer ence, 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-fr equency en ergy. If it is no t

installed in accordance with Cisco’s installation instructions, it may cau se interference with radio and tele vision 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 spec ifications are designed to provide reasonable

protection against su ch interfe rence in a re sidentia l install ation. Howev er, ther e is no guar antee that in terferen ce will not occur in a particular instal lation.

Modifying the equipment without Cisco’s written authorization may res ult in the equipment no longer complyin g with FCC requirements for Class A or Class B digital

devices. In that event, your right t o use the eq uipment ma y be limit ed by FCC reg ulations , and you ma y be require d to correct any interference to radio or television

communications at your own expense.

You can determine whether your equipment is causing interference by turni ng it off. If the interference stops, it was probably caused by the Cisco eq uipment or one of its

peripheral devices. I f the equipm ent cau ses interfe rence to ra dio or televi sion rece ption, tr y to correct th e inter ference by u sing 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 far ther away f rom the tele vision or radio.

• Plug the equipment into an outlet that is on a different circuit from the televisio n or radio. (That is, make certain the equipment and the television or radio are on circuits

controlled by differen t circuit breakers o r 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 progra m developed by the University of California, B erkeley (UCB) as part of UCB’s public

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH

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IMPLIED, INCLUDING, WITH OUT

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OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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www.cisco.com/go/trade marks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership

relationship between Cisco and any other company. (1110R)

Cisco Catalyst 4900M Switch Installation Guide

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CONTENTS

Preface vii

Audience vii

Organization vii

Related Documentation viii

Hardware Documents viii

Software Documentation ix

Cisco IOS Documentatio n ix

Conventi ons x

Statement 1071—Warning Definition xi

Obtaining Documentation and Submitting a Service Request xvi

CHAPTER

1 Product O verv iew 1-1

Catalyst 4900M Switch Chassis 1-1

Catalyst 4900M Switch Chassis Features 1-2

Catalyst 4900M Switch Chassis Physical and Environmental Specifications 1-3

Catalyst 4900M Switch Chassis Rear Panel Connections and Features 1-4

Front Panel LEDs 1-5

Chassis Coo ling 1-6

Power Supplies 1-7

Environmental Monitoring of the Power Supplies 1-8

Power Management for the Catalyst 4900M Switch 1-8

Power Management Modes 1-8

Catalyst 4900M Half-Card Modules 1-8

WS-X4920-GB-RJ45 Half-Card Ethernet Module 1-9

WS-X4904-10GE Half-Card Ethernet Module 1-10

WS-X4908-10GE Half-Card Ethernet Module 1-11

WS-X4908-10G-RJ45 Half-Card Ethernet Module 1-13

Serial Number Location 1-14

CHAPTER

2 Site Planning 2-1

Site Environmental Requirements 2-1

Site Power Requirements 2-2

Preinstallation Requirements 2-2

Warnings and Cautions 2-2

Contents

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EMI Recommendations 2-3

Power Requirements and Heat Dissipation 2-3

Grounding Requirements 2-7

Safety Overview 2-7

Ensuring Safety 2-7

Working Safely with Electricity 2-8

Preventing Electrostatic Discharge Damage 2-9

Site Planning Checklist 2-9

CHAPTER

3 Installing the Switch 3-1

Checking the Contents 3-1

Rack-Mounting the Switch 3-2

Rack-Mounting Guidelines 3-2

Lifting the Chassis Safely 3-3

Required Installation Tools 3-4

Rack-Mounting the Catalyst 4900M Switch 3-4

Connecting Power to the Catalyst 4900M Switch 3-7

Connecting DC-Input Power to the Catalyst 4900M Switch 3-9

Optical Connecti ons 3-13

Configurable Modules 3-13

Required Tools 3-14

Removing Switchin g Modules 3-14

Installing Switching Modules 3-16

Removing and Replacing the Power Supply 3-18

Required Tools 3-18

Removing a Power Supply 3-18

Installing a Power Supply 3-19

Removing and Replacing the Fan Assembly 3-20

Required Tools 3-20

Removing the Fan Assembly 3-20

Installing the Fan Assembly 3-21

Verifying the Installation 3-21

CHAPTER

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 4-2

Contents

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Troubleshooting the Power Supply 4-4

Contacting Customer Service 4-4

APPENDIX

A Specifications A-1

Console Port A-1

10/100/1000BASE-T Management Port A-2

Catalyst 4900M Switch Power Supply Specifications A-2

APPENDIX

B Compliance Information and Translat ed Safety Warnings B-1

Translated Safety Warnings B-1

Statement 258—Fan Tray Removal Warning B-2

Statement 1003—DC Power Disconnection B-3

Statement 1004—Installation Instructions B-4

Statement 1006—Chassis Warning for Rack-Mounting and Servicing B-6

Statement 1008—Class 1 Laser Product B-11

Statement 1011—Staring into Laser Beam B-13

Statement 1017—Restricted Area B-14

Statement 1019—Main Disconnecting Device B-16

Statement 1024—Ground Conductor B-17

Statement 1028—More Than One Power Supply B-20

Statement 1029—Blank Faceplates and Cover Panels B-22

Statement 1030—Equipment Installation B-25

Statement 1040—Product Disposal B-27

Statement 1045—Short-circuit Protection B-28

Statement 1051—Laser Radiation B-30

Statement 1072—Shock Hazard from Interconnections B-32

Statement 1074—Comply with Local and National Electrical Codes B-35

Statement 1075—Hazardous Voltage or Energy Present on DC Power Terminals B-36

European Directives B-38

Statement 287—Declaration of Conformity to R&TTE Directive 1999/5/EC for the European

Community, Switzerland, Norway, Iceland and Liechtenstein B-38

Statement 2002—Declaration of Conformity with Regard to the Directives 2006/95/EC and

2004/108/EC B-39

Statement 6005—California Perchlorate Contamination Prevention Act (Title 22, California Co de o f

Regulations, Chapter 33) B-39

Statement 6003—Taiwan Battery B-40

Statement 6004—EU Battery Disposal and Recycling B-40

Statement 6005—California Perchlorate Contamination Prevention Act (Title 22, California Co de o f

Regulations, Chapter 33) B-40

Contents

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Statement 8000—Standards Compliance B-40

Statement 2007—EMC Environmental Conditions for Products Installed in the European Union B-42

EMC Class A Notices and Warnings B-42

Statement 257—Class A Notice for Taiwan and Other Traditional Chinese Markets B-42

Statement 340—Class A Warning for CISPR22 B-43

Statement 2017—Class A Notice for FCC B-44

Statement 2021—Class A Notice for Canada B-44

Statement 191—VCCI Class A Warning for Japan B-45

Statement 256—Class A Warning for Hungary B-45

Statement 294—Class A Warning for K orea B-46

GR-1089-CORE Issue 3 Documentation Statements B-46

Statement 7016—GR-1089-Core Intrabuilding Lightning—Immunity Requirements B-46

GR-1089-CORE Issue 4 Documentation Statements B-46

Statement 7001—ESD Mitigation B-46

Statement 7005—Intra-building Lightning Surge and AC Power Fault B-46

Statement 7012—Equipment Interfacing with AC Power Ports B-47

Statement 7013—Equipment Bonding Networks B-47

Statement 7014—Installation Location B-47

Statement 7015—Equipment Bonding and Grounding B-47

Statement 7016—Battery Return Conductor B-47

Statement 7017—Minimum Steady State DC Input Voltage B-47

Statement 8003—Telecom Approvals Listing B-47

Statement 3023—FCC Part 68 Notice B-47

Statement 3015—CS-03 Certification for Canada B-49

Statement 8001—JATE Certification for Japan B-49

Japanese Electric Appliance and Radio Laws B-50

Statement 371—Power Cable and AC Adapter B-50

Statement 372—Wireless LAN Products B-50

Statement 384—Japanese Safety Reference Information B-50

I

NDEX

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Preface

This preface describes the audience, organiz ation, and conventions of the Cisco Catalyst 4900M Switch

Installation Guide and provides information on how to obta in related documenta tion.

Audience

Only trained and qualifie d servic e pers onnel (a s defined in I EC60950 and AZ/NZ S 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 4900M switch.

Chapter 2 Site Planning Describes how to prepare your site for the installation of the

switch.

Chapter 3 Installing the Switch Details how to ins tall the Catalyst 4 900M switch.

Chapter 4 Troublesh ooting the

Installation

Provides troubleshooting guidelines for the initial hardware

installation and suggests steps to help isolate and resolve

problems.

Appendix A Specifications Lists the Catalyst 4900M switch system specifications.

Appendix B Translated Safety

Warnings

Repeats in multiple languages the warnings in this guide.

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Preface

Related Documentation

Software Documentation

Software release notes, configur ation guides, comman d references, and syste m message guides are

available at the following URLs:

• Catalyst 4500 release notes are availa ble at:

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_release_notes_list.html

• Catalyst 4900 release notes are availa ble at:

http://www.cisco.com/en/US/products/ps6021/prod_release_notes_list.html

• Cisco ME4900 4900 Series Ethernet S witch release notes are available at:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/release/note/OL_11511.html

Software documents for the Cataly st 4500 Classic, Cata lyst 4500 E-Series, Catal yst 4900, and

Cisco ME 4900 Series Ethernet Switche s are available at the following URLs:

• Catalyst 4500 Series Software Conf iguration Guide

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_installation_and_configurati

on_guides_list.html

• Catalyst 4500 Series Software Comm and Reference

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_command_reference_list.html

• Catalyst 4500 Series Software Sys tem Message Guide

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_system_message_guides_list

.html

Cisco IOS Document ation

Platform-independent Ci sco IOS doc umentatio n may also ap ply to th e Catalyst 450 0 and 490 0 switches .

These documents are available at the following URLs:

• Cisco IOS configur ation guides, Re lease 1 2.x

http://www.cisco.com/en/US/products/ps6350/products_installation_and_configuration_guides_lis

t.html

• Cisco IOS command references, Rel ease 12.x

http://www.cisco.com/en/US/products/ps6350/prod_command_reference_list.html

You can also use the Command Lookup Tool at:

http://tools.cisco.com/Support/CLILookup/cltSearchAction.do

• Cisco IOS system messages, version 1 2.x

http://www.cisco.com/en/US/products/ps6350/products_system_message_guides_list.html

You can also use the Error Message Decoder tool at:

http://www.cisco.com/pcgi-bin/Support/Errordecoder/index.cgi

• For information about MIBs, refer to:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

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Preface

Related Documentation

Conventions

This document uses the following conventions:

Notes use the f ollowi ng conventions :

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

publication.

Cautions use the following convent ions:

Caution Means reader be careful. In this situation, you might do something th at could result in equipme nt

damage or loss of data.

Convention Description

boldface font Com mands and keywords are in bo l dfac e .

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

[ ] Elements in square brackets are optional.

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

separated by vertical bars.

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

and separated by vertical bars.

string A non-quoted set of characters. Do not use quotation

marks around the string, because the string will include

the quotation marks.

screen font Terminal sessions and information that the system

displays are in screen font.

boldface screen

font

Information that you must enter is shown in boldface

screen font.

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

screen font.

Ctrl- Ctrl- represents the key labeled Control—for example,

the key combination Ctrl-D means to hold down the

Control key while you press the D key.

< > Characters that do not print, such as passwords, are

shown within angle brackets.

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Preface

Related Documentation

Warnings use the following conventions:

Statement 10 71—Warn ing Defini tion

Warni n g

IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means dang er. You are in a sit uation that c ould caus e bodil y inj ury. Befor e you

work on any equipm ent, b e awar e of t he ha zards i nvol ved with elect rical circuit ry a nd be famili ar

with standard practices for preventing acc idents. Use the statement numbe r provided at the end of

each warning to locate its tran slation in the t ranslated saf ety warnings th at accompanied thi s

device.

SAVE THESE INSTRUCTI ONS

Waarschuwing

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

Dit waarschuwingssymbool betekent geva ar. U verkeert in een sit uatie die licha melijk let sel kan

veroorzaken. Voordat u aan eni ge apparatuu r gaat werken, dien t u zich bewust te zijn van de bij

elektrische schakelin gen betrokken r isico's en die nt u op de hoogte te zijn van de sta ndaard

praktijken om ongelukken t e voorkomen. Ge bruik het nummer van de verklaring onder aan de

waarschuwing als u een vertali ng van de waarschu wing die bij het app araat wordt gelev erd, wilt

raadplegen.

BEWAAR DEZE INSTRUCTIES

Varoitus

TÄRKEITÄ TURVALLISUUSOHJEITA

Tämä varoitusmerkki merkit see vaaraa . Tilanne voi aiheu ttaa ruumiil lisia vammoj a. Ennen kuin

käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu

onnettomuuksien yleis iin ehkäisyta poihin. Turval lisuusvar oitusten käänn ökset löyt yvät laitteen

mukana toimitettujen kään nettyjen turvallisuu svaroitust en joukosta v aroitusten lopu ssa näkyvien

lausuntonumeroide n avul la.

SÄILYTÄ NÄMÄ OHJEET

Attentio n

IMPORTANTES INFORMATIONS DE SÉCURITÉ

Ce symbole d'avertissem ent indique un dan ger. Vous vous trouvez dans une situation pouvant

entraîner des blessure s ou des dommages corp orels. Avant de trav ailler sur un équipement, soyez

conscient des dangers li és aux circuits éle ctriques et famil iarisez -vous avec les proc édures

couramment utilis ées p our évit er l es acci dents . Pour prendre connai ssanc e des t raduct ions des

avertissements f igurant dans les c onsign es de s écurité tradu ites qui ac compag nent cet appar eil,

référez-vous au numéro de l'i nstructi on situé à la fin de chaqu e avertisseme nt.

CONSERVEZ CES INFORMATIONS

Page is loading ...

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Related Documentation

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Preface

Related Documentation

Obtaining Docu mentation and Submitting a Service Requ est

For information on obtaining documentation, submitting a service request, and gathering additional

information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and

revised Cisco technical document ation, at:

http://www. cisco. com/e n/US/ docs/ge nera l/what snew/w hatsn ew.html

Subscribe to the What’s New in Cisco Product D ocumentation as a Really Simple Syndication (RSS) feed

and set content to be delivered directly to your desktop using a reader application. The RSS fee ds are a free

service and Cisco currently supports RSS Vers i o n 2.0.

CHAPTER

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1

Product Overview

Revised: January 4, 2012

This chapter describes the Catalyst 4900M switch and the supported half-card Eth ernet modules. The

chapter contains these sectio ns:

• Catalyst 4900M Switch Chassis, page 1-1

• Catalyst 4900M Half -Card Mo dules, page 1-8

• Serial Number Location, page 1-14

Catalyst 4900M Switch Chassis

The Catalyst 4900M switch is a 2 RU horizontal high-performance dedicated Ethernet switch. The

chassis has 8 fixed 1- GB or 10 -GB ports a nd two hal f-card Eth ernet module slots that can accommodat e

a several different styles of half-car d Ethernet modules. The switch has one removable variab le-speed

fan tray and supports redundant power supplies. Figur e 1-1 shows the front of the chassis.

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Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Figure 1-1 Catalyst 4900M Switch Chassis

Catalyst 4900M Switch Chassis Features

Table 1-1 lists the features of the Catalyst 4900M switch chassis.

232121

Tabl e 1-1 Catalyst 4900M Swi tch Features

Feature Description

Chassis 8-port fixed configuration plus 2 half-card module slo ts

Uplink ports 8 10-Gigabit ports that support X2 tr ansceivers. By using the Ci sco OneX

converter, the 8-ports also s upport S FP+ tr ansceivers.

Slots 2 half-card module slots are available allowi ng you to configure the chassis

to your specific needs.

Memory 512-MB SDRAM, 128-MB Flash (onboa rd and fixed), 256 bytes ser ial

EEROM

Console port A console serial port (RJ-45) provides for switch manageme nt using

standard console equipment . (See Figure 1-2.)

Note A console ca ble is not pr ovided in the accessory k it. It can be or dered

as an option.

Ethernet management port 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 sup ported on the Manageme nt port; it

also supports image download to the s witch.

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Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Note A console cable is not provided as part of the accessory kit . It is available as an option.

Catalyst 4900M Switch Chassis Ph ysical and Env ironmental Specifica tions

Table 1-2 lists the Catalyst 4900M switch chassis environmental and physica l specifications.

Reset switch The Reset button is used to restart the switch. Use a paper clip or other small,

pointed object to press the Reset button.

Fan tray Variable-speed. Field replaceable.

Power supplies 10 00 W AC-input and 1000 W DC-input power supplie s are supported.

Table 1-1 Catalyst 4900M Switch Features (continued)

Feature Description

Tabl e 1-2 Catalyst 4900M Switch Specifications

Item Specification

Environmental

Temperat ure, op erat ing Certified for operation: 32° to 104°F (0 ° to 40°C)

Designed and tested for operation : 32° to 131°F (0° to 55°C)

Note The Catalyst 4900M s witch is equippe d with inter nal air tempe rature

sensors that are triggered at 49°C (120.2°F) generating a minor alarm

and at 64°C (147.2°F) generating a major alarm. The s ystem will shut

down at 67°C (152.6°F).

Temperature, nonoperating

and storage

–40° to 167°F (–40° to 75°C)

Humidity (RH), ambient

(noncondensing) operating

10% to 90%

Altitude, operating Certified for ope ration: –197 to 6562 ft (–60 to 2000 m)

Heat Dissipation 1364 BTU/hour (worst case)

Physical Characteristics

Dimensions (H x W x D) • 3.5 x 17.2 x 17.9 in. (8.9 x 43.7 x 45.5 cm).

• Chassis requires 2 RU

1

.

• The Catalyst 4900M switch chassis is designed to install in standard

19-inch equipment racks that m eet ANSI/EIA 310-D, IEC 60297, and

ETS 300-119 standards.

1. RU = r ack units

Weight 34.0 lb (15.4 kg) (max)

Airflow 151.7 CFM (max)

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Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Catalyst 4900M Swi tch Chassis Rear Pan el Connectio ns and Features

Figure 1-2 shows the chassis rear panel with the major f eatures identified.

Figure 1-2 View of the Rear Panel

The chassis rear panel features include:

• Reset button—The Rese t button is used to res tart the swit ch. Use a paper clip or other smal l, pointed

object to press the Reset button.

• Console port—A console seria l port (RJ-45) provide s for switch management usin g standard

console equipment. (See Fig ure 1-2 .) A connector pinout table is provided in Appendix A,

“Specifi cat ions ,” for the consol e and management po rts.

• Management port—The Mana gement port on the rear pane l offers the same TCP/IP base d

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.

• USB connector—A USB connect or is provided for future expansion.

• Compact Flash slot—The Compa ct Flash slot accepts bo th 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 f rom third-party suppl iers.

For more information, refer to Using the Compact Flash on the Catalyst 4500 Series Superviso r

Engines at the following URL:

http://www. cisco. com/e n/US/ docs/s witche s/la n/cata lyst450 0/ha rdwar e/conf igurati on/n otes/OL _27

88.html

1 Input OK LED (power

supply)

5 Console port

2 Output OK LED (power

supply)

6 Management port

3 Fan Status LED 7 USB con nector

4 Reset button 8 Compact Flash slot

1 2 1 2 3

4 5 7 8

6

232122

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Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Front Panel LEDs

A set of LEDS on the chassis front panel (see Figure 1-3) provide visual status for the switch. Tab l e 1-3

lists the front panel LEDS and their meanings.

Figure 1-3 Chassis Front Panel LEDs

1 PS1 LED 4 System LED

2 PS2 LED 5 10Gig port LEDs

3 Fan LED

Tabl e 1-3 Front Pan el LED D esc ripti ons

LED Description

System

(front)

The system LED indicates the operating state of the Catalyst 4900M

switch. At startup, the Catalyst 4900M performs a series of

diagnostic tests:

• Green—All tests pass

• Red—A test other than an individual port test fails

• Off—System is in rommon mode or a power supply has failed

Switch is disabled

CON

Console port

(rear)

• Green—10/100 BASE-T console port is in link-up state

• Off—10/100 BASE-T con sole por t is i n link- down stat e or no t

connected

Note There are no blinking, red, or yellow states for this port

MGT

(rear)

• Green—10/100/1000BASE-T Ma nagement port is in link- up

state.

• Off—10/100/1000BASE-T Ma nagement port is in link-down

state or not connected.

Note There are no blinking, red, or yellow states for this port.

Port

(front)

• Green—Port is operational.

• Yellow—Port is disabled by user.

• Flashing yellow—Power-on sel f-test indicates faulty port.

• Off—No signal detected or link co nfiguration failure.

1

3

2

4

232123

5

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Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Chassis Cooling

The hot-swappable chassis f an tray (WS-X4992) provide s cooling air for the inte rnal chassis

components. The fans draw air in from the right side of the chassis and exhaust the heated air through

perforations on the right side of the chassis.

Caution When the fan tray is removed, internal circuitry is exposed that should not be touched by tools or fingers.

The system should n ot oper ate without a fan t ray for lo nger th an is nec essary to replace a faulty fa n tray

with a new fan tray.

Figure 1-4 shows the direction of airflow through the switc h.

Fan

(front and rear)

FAN LED indicates the fan tray status.

• Green—Fan tray operational.

• Red—Fault detected. One or more fans not functional.

• Off—No power to the fan tray.

PS1 and PS2

(front)

PS1 and the PS2 LEDs indicates the internal power supply status.

• Off—No power to the power supply.

• Green—Operational.

1

• Red—Fault detected or the on/off switch is set to off while th e

power supply is plugged in.

LINK A link status LED is located below the 10-GB uplink ports.

1. If either LED is green and the other i s OFF the pow er supply i s probably not plugged in. If it is re d, the

supply is either plugged in and not switched on or it is faulty. It may be necessary t o interrogate t he system

for further status using the CLI.

Table 1-3 Front Pane l LE D De scr ipti ons (c onti nue d)

LED Description

1-7

Cisco Catalyst 490 0M Switch Ins talla tion Guid e

78-18350-02

Chapter 1 Product Overview

Catalyst 4900M Switch Chassis

Figure 1-4 Catalyst 4900M Chassis Airflow

There are five fans in the fan tray. If an individual fan fails, the other fans continue to run. Sensors

monitor the internal air temperatures. The number of fans in operation a nd their speed varies according

to the internal temperature for the quietest operation possible. If the air temperature exceeds a desired

threshold, the environmental monitor displays warning messages.

Note Individual fans in the fan tray cannot be replaced; the entire fan tray must be replaced.

Power Suppli es

Note For complete power specifications for the Catalyst 4900M switch, see Appendix A, “Specifications.”

The Catalyst 4900M switch has two redu ndant in ternal 1 000 W AC-input or 1000 W DC-input power

supplies.

The internal power supplies have individu al power cords and status LE Ds (PS1 and PS2 on the front

panel). There are also LEDs on the power supplies tha t show status for the input (Input OK) and output

(Output OK) currents. A power cord is used to connect the power supplies to the site AC source. There

is a power switch on the AC-input power supplies; AC power is present when a power cord is plugged

into a power supply and the switch is set to th e On position. DC-input power supplies attach to source

DC using customer-supplied cable s.

The switch starts with only one p ower supply plugged in, but redundant failover and load sharing i s not

available in this configuration. Cisco recommends that you always connect both power supplies to

separate AC or DC circuits for optimal power reliability.

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