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Preface Related Publications Related Publications You can order printed copies of documents with a DOC-xxxxxx= number. For more information, see the "Ordering Documentation" section on page xxii. These documents provide complete information about the switch and are available from this Cisco.com site: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/index.htm • Release Notes for the Catalyst 3750 Switch (not orderable but available on Cisco.com) Note Before installing, configuring, or upgrading the switch, refer to the release notes on Cisco.com for the latest information. • Catalyst 3750 Switch Software Configuration Guide (order number DOC-7815164=) • Catalyst 3750 Switch Command Reference (order number DOC-7815165=) • Catalyst 3750 Switch System Message Guide (order number DOC-7815166=) • Cluster Management Suite (CMS) online help (available only from the switch CMS software) • Catalyst 3750 Switch Hardware Installation Guide (order number DOC-7815136=) • Cisco Small Form-Factor Pluggable Modules Installation Notes (order number DOC-7815160=) • Cisco Small Form-Factor Pluggable Modules Compatibility Matrix (not orderable but available on Cisco.com) • Compatibility Matrix for 1000BASE-T Small Form-Factor Pluggable Modules (not orderable but available on Cisco.com) Obtaining Documentation Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems. 78-15136-02 Catalyst 3750 Switch Hardware Installation Guide xxi

Section	Page
Catalyst3750 Switch HardwareInstallationGuide	3
Contents	7
Cisco Limited Lifetime Hardware Warranty Terms	13
Preface	17
Audience	17
Purpose	17
Conventions	18
Related Publications	23
Obtaining Documentation	23
Cisco.com	24
Documentation CD-ROM	24
Ordering Documentation	24
Documentation Feedback	25
Obtaining Technical Assistance	25
Cisco TAC Website	25
Opening a TAC Case	26
TAC Case Priority Definitions	26
Obtaining Additional Publications and Information	27
Using Express Setup	29
Taking Out What You Need	30
Powering On the Switch	31
Starting Express Setup	32
Configuring the Switch Settings	37
Verifying Switch IP Address (Optional)	38
Rerunning Express Setup	39
Where to Go Next	40
Other Switch Home Page Features	40
Installing or Connecting Devices to the Switch	40
Product Overview	41
Features	41
Front Panel Description	43
10/100 and 10/100/1000 Ports	46
SFP Module Slots	47
SFP Modules	47
LEDs	48
System LED	49
RPS LED	49
Master LED	50
Port LEDs and Modes	50
Rear Panel Description	54
StackWise Ports	55
Power Connectors	56
Internal Power Supply Connector	56
Cisco RPS Connector	56
Console Port	57
Management Options	58
Network Configurations	59
Switch Installation	61
Preparing for Installation	61
Warnings	62
EMC Regulatory Statements	64
U.S.A.	64
Class A Notice for Taiwan and Other Traditional Chinese Markets	64
Japan	64
Class A Notice for Korea	65
Class A Notice for Hungary	65
Installation Guidelines	66
Verifying Package Contents	67
Verifying Switch Operation	68
Connecting a PC or Terminal to the Console Port	68
Powering On the Switch and Running POST	70
Powering Off the Switch and Disconnecting the Console Port	71
Planning the Stack	72
Planning Considerations	72
Powering Considerations	73
Cabling Considerations	74
Recommended Cabling Configurations	75
Installing the Switch	77
Rack Mounting	78
Removing Screws from the Switch	79
Attaching Brackets to the Catalyst 3750G-24TS Switch	80
Attaching Brackets to the Catalyst3750-24TS, 3750G-24T, 3750G-12S, and 3750-48TS Switches	85
Mounting the Switch in a Rack	88
Attaching the Cable Guide	90
Wall Mounting	92
Attaching the Brackets to the Switch for Wall-Mounting	92
Attaching the RPS Connector Cover	93
Mounting the Switch on a Wall	94
Table or Shelf Mounting	96
Connecting StackWise Cable to StackWise Ports	97
Installing and Removing SFP Modules	100
Installing SFP Modules into SFP Module Slots	101
Removing SFP Modules from SFP Module Slots	103
Connecting to the 10/100 and 10/100/1000 Ports	104
Connecting to an SFP Module	106
Connecting to a Fiber-Optic SFP Module	107
Connecting to 1000BASE-T SFP Modules	108
Where to Go Next	110
Troubleshooting	111
Understanding POST Results	111
Clearing the Switch IP Address and Configuration	112
Diagnosing Problems	113
Replacing a Failed Stack Member	117
Technical Specifications	119
Connector and Cable Specifications	125
Connector Specifications	125
10/100/1000 Ports	125
Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices	126
Connecting to 1000BASE-T Devices	126
10/100 Ports	127
SFP Module Ports	129
Console Port	130
Cable and Adapter Specifications	130
Two Twisted-Pair Cable Pinouts	130
Four Twisted-Pair Cable Pinouts for 10/100 Ports	131
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports	132
Crossover Cable and Adapter Pinouts	133
Identifying a Crossover Cable	133
Adapter Pinouts	134
Managing the Switch by Using the Cluster Management Suite	137
Connecting to an Ethernet Port	138
Launching the Switch Home Page	139
CMS Requirements	141
Recommended Configuration for Web-Based Management	142
Operating System and Browser Support	142
Supported Java Plug-Ins	143
Java Plug-In Notes	144
Where to Go Next	144
Quick Setup By Using the CLI-Based Setup Program	145
Methods for Accessing the CLI	146
Accessing the CLI Through Express Setup (Unconfigured Switch Only)	146
Accessing the CLI Through the Console Port	147
Taking Out What You Need	148
Stacking the Switches (Optional)	149
Connecting to the Console Port	151
Starting the Terminal Emulation Software	153
Connecting to a Power Source	153
Entering the Initial Configuration Information	154
IP Settings	154
Completing the Setup Program	155
Translated Safety Warnings	159
Attaching the Cisco RPS (model PWR300-AC-RPS-N1)	159
Attaching the Cisco RPS (model PWR675-AC-RPS-N1)	160
Installation Warning	162
Installation Instructions	163
Jewelry Removal Warning	164
Stacking the Chassis Warning	166
Main Disconnecting Device	168
Grounded Equipment Warning	169
Installing or Replacing the Unit	170
Overtemperature Warning	172
Working During Lightning Activity	174
Product Disposal Warning	175
Chassis Warning for Rack-Mounting and Servicing	177
Redundant Power Supply Connection Warning	182
Switch Installation Warning	183
Restricted Area	185
Ethernet Cable Shielding in Offices	186
Laser Beam Exposure	188
Laser Radiation	189