Catalyst 3750 Switch Hardware Installation Guide
Page
 N T E N T S
 Rear Panel Overview
 Troubleshooting
 SFP Module Ports
 Organization
Audience
Purpose
 Conventions
 Related Publications
Device manager online help available on the switch
 Catalyst 3750 Switch Hardware Installation Guide
 Product Overview
Features
 Product Overview Features
 10/100 ports SFP module slots
Fast Ethernet Front Panel Switches
Catalyst 3750-24FS Switch Front Panel Description
Front Panel Description
 Catalyst 3750-48TS Switch Front Panel Description
Catalyst 3750-24TS Switch Front Panel Description
 10/100 PoE ports SFP module slots
Catalyst 3750-24PS Switch Front Panel Description
Catalyst 3750-48PS Switch Front Panel Description
10/100 PoE ports 2 SFP module slots
 Catalyst 3750G-12S and Catalyst 3750G-12S-SD Front Panel
Gigabit Ethernet Switch Front Panel Descriptions
 10/100/1000 ports 2 SFP module slots
10/100/1000 ports
 10/100/1000 PoE ports 2 SFP module slots
Catalyst 3750G-48TS Switch Front Panel Description
Catalyst 3750G-24PS Switch Front Panel Description
10/100/1000 ports SFP module slots
 10/100/1000 ports Xenpak module slot
Catalyst 3750G-48PS Switch Front Panel Description
Catalyst 3750G-16TD Switch Front Panel Description
 10/100/1000 PoE ports SFP module slots
10/100 and 10/100/1000 Ports
 Product Overview 10/100 and 10/100/1000 Ports
 SFP Module Slots
100BASE-FX Ports
 SFP Modules
Xenpak Module Slot Catalyst 3750G-16TD Switch
LEDs
 Speed LED System LED Duplex LED Port LED Status LED
Mode button Master LED Stack LED
 Speed LED System LED Duplex LED
Mode button Status LED Stack LED Master LED Speed LED
Mode button Status LED PoE LED Master LED Stack LED
Duplex LED System LED
 18 Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch LEDs
 Color System Status
System LED
 Port speed Port operating speed 10, 100, or 1000 Mb/s
Port status Port status. This is the default mode
Master LED
Port LEDs and Modes
 Port Mode Port LED Color Meaning
 Stack LED
 Stack LED
 Rear Panel Overview
Rear Panel Description
 21 Catalyst 3750G-24TS Switch Rear Panel
 23 Catalyst 3750-24FS Switch Rear Panel
 StackWise Ports
Power Connectors
 Cisco RPS Connector
Internal Power Supply Connector
DC Power Connector
 Console Port
Management Options
 Snmp network management
Network Configurations
 This section covers these topics
Preparing for Installation
 Switch Installation Preparing for Installation
 Switch Installation Preparing for Installation
 Catalyst 3750G Integrated Wireless LAN Controller Switches
 Installation Guidelines
 Verifying Switch Operation
Verifying Package Contents
 Planning the Stack
Powering On the Switch and Running Post
Powering Off the Switch
If you plan to stack your switches, read these sections
 Cabling Considerations
Powering Considerations
Planning Considerations
 Example of a Stack with Full Bandwidth Connections
 Stacking Switches in Vertical Racks or on a Table
Recommended Cabling Configurations
 Rack-Mounting
Installing the Switch
This section describes these installation procedures
 12shows how to remove the chassis screws in a 1.5-RU switch
Removing Screws from the Switch
 12 Removing Screws from the 3750G-24TS Switch
 Phillips flat-head screws
Attaching Brackets to the Catalyst 3750G-24TS Switch
 15 Attaching Brackets for 24-Inch Racks, Front Panel Forward
 17 Attaching Brackets for 24-Inch Racks, Rear Panel Forward
 20 Attaching Brackets for 19-Inch Racks, Front Panel Forward
 22 Attaching Brackets for 19-Inch Telco Racks
Attaching Brackets to All Other Catalyst 3750 Switches
 Attaching Brackets for 19-Inch Racks and 19-Inch Telco Racks
 24 Attaching Brackets for 19-Inch Racks, Front Panel Forward
Phillips truss-head screws
 Attaching Brackets for 23-Inch Racks
 Attaching Brackets for 24-Inch Racks and 24-Inch Telco Racks
 Attaching Brackets for Etsi Racks
 Phillips machine screws
Mounting the Switch in a Rack
 141734
 Cable guide screws
Attaching the Cable Guide
 Wall-Mounting
 Phillips pan-head screws RPS connector RPS connector cover
Attaching the Brackets to the Switch for Wall-Mounting
Attaching the RPS Connector Cover
 43 Mounting the Switch on a Wall
Mounting the Switch on a Wall
 Table- or Shelf-Mounting
Connecting StackWise Cable to StackWise Ports
 Stack 1 Stack
 Stack
 Installing SFP Modules into SFP Module Slots
Installing and Removing SFP Modules
 Removing SFP Modules from SFP Module Slots
48 Installing an SFP Module into an SFP Module Slot
 Switch Installation
 50shows a Xenpak module
Installing a Xenpak Module
 51 Removing the Xenpak Module Slot Cover
 Removing a Xenpak Module
Optical bore dust plug 2 Captive installation screw
 Phillips-head screw Module slot cover
Connecting to the 10/100 and 10/100/1000 Ports
 Device Crossover Cable
 Connecting to a Fiber-Optic SFP Module
Connecting to an SFP Module
 56 Connecting to an SFP Module Port
 57 Connecting to an SFP Module Port
Connecting to 1000BASE-T SFP Modules
 Connecting to a Xenpak Module
 58 Connecting to a Xenpak Module Port
Where to Go Next
 OL-6336-07
 This section includes these troubleshooting topics
Diagnosing Problems
 Bad or Damaged Cable
Verify Switch Post Results
Monitor Switch LEDs
Verify Switch Connections
 PoE Connections
Transceiver Module Port Issues
Link Status
 Spanning Tree Loops
Port and Interface Settings
Ping the End Device
 Cabling Distance
Monitor Switch Performance
Speed, Duplex, and Autonegotiation
Autonegotiation and NIC Cards
 Replacing a Failed Stack Member
Clearing the Switch IP Address and Configuration
 Catalyst 3750G-16TD Switch Serial Number Location
Finding the Switch Serial Number
 Catalyst 3750G-16TD Switch Serial Number Location
 Catalyst 3750G-24TS Switch Serial Number Location
 Catalyst 3750G-24WS Switch Serial Number Location
 11 Catalyst 3750-48TS Switch Serial Number Location
 OL-6336-07
 Technical Specifications
 Environmental Ranges
 Table A-3 Specifications for the Catalyst 3750-24FS Switch
 Table A-4 Specifications for the Catalyst 3750-24TS Switch
 Table A-5 Specifications for the Catalyst 3750G-24T Switch
 Per port maximum, 370 W switch maximum
 Range from 4 to 15.4 W per port, up to 370 W switch maximum
 Table A-8 Specifications for the Catalyst 3750-48PS Switch
 Table A-9 Specifications for the Catalyst 3750G-48PS Switch
 Table A-10 Specifications for the Catalyst 3750G-16TD Switch
 Table A-11 Specifications for the Catalyst 3750G-24TS Switch
 Environmental Ranges
 Table A-13 Specifications for the Catalyst 3750-48TS Switch
 Power over Ethernet
 Connector Specifications
Connector and Cable Specifications
 Figure B-1 10/100 Port Pinouts
10/100 and 10/100 /1000 Ports
 Meter, MT-RJ-to-ST multimode cable
SFP Module Ports
Meter, MT-RJ-to-SC multimode cable
 Xenpak Module Ports Catalyst 3750G-16TD Switch
 SFP Module Cable Specifications
Cable and Adapter Specifications
 Two Twisted-Pair Cable Pinouts
 TP3
Four Twisted-Pair Cable Pinouts for 10/100 Ports
 Figure B-11 Identifying a Crossover Cable
Identifying a Crossover Cable
 Crossover Cable and Adapter Pinouts
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
 RxD TxD
TxD RxD
 Connecting to DC Power
Connecting to DC Power
 Grounding the Switch
Preparing for Installation
 Figure C-2 Crimping the Ground Lug
Torque to 15 lbf-in
 Figure C-4 Terminal Block Plug
Wiring the DC-Input Power Source
 Figure C-6 Stripping the DC-Input Power Source Wire
 Figure C-7 Inserting Wires in the Terminal Block Plug
 Figure C-8 Torquing the Terminal-Block Captive Screws
 Terminal block
Tie wrap
 Configuring the Switch with the CLI-Based Setup Program
 Accessing the CLI Through the Console Port
Accessing the CLI
Accessing the CLI Through Express Setup
 Taking Out What You Need
 Stack 1 Stack
Stacking the Switches Optional
 Figure D-4 Connecting a Switch to a PC
Connecting to the Console Port
 Starting the Terminal Emulation Software
Connecting to a Power Source
 Completing the Setup Program
Entering the Initial Configuration Information
IP Settings
 Enter an enable password, and press Return
 These choices are displayed
 OL-6336-07
 Considerations Pinouts B-7
Numerics
 RPS Specifications DC power caution
Connecting to the console port D-5
Connection procedures
Connectors and cables Console port
 Interpreting Master PoE Port
Document conventions
 Shock hazard warning
High-powered devices
 RJ-45 connector, console port RJ-45 console port
LEDs Results Running at power on Running at powerup
Power Connecting to Connectors
Power connection warning
 Xenpak modules caution
Xenpak module rubber plugs warning