Cisco Systems WSC3750X24TS manual

Appendix C Connecting to DC Power

Connecting to DC Power

Step 3 Identify the positive and negative feed positions for the terminal block connection. The wiring sequence is positive to positive and negative to negative for both the A and the B feed wires. The switch rear panel identifies the positive and negative positions for both the A and B feed wires, as shown in Figure C-5.

Figure C-5 Positive and Negative Positions on the Switch Rear Panel

STACK 1	STACK 2	CONSOLE

36 -
3.0	72V
3.0	-
	1.5A
	B –
	+
	A –
	+

36	- 72V
3.0 -
	1.5A
	B –
	+
	A –
	+

132976

Step 4 Using a 18-gauge wire-stripping tool, strip each of the four wires coming from the DC-input power source to 0.27 inch (6.6 mm) ± 0.02 inch (0.5 mm), as shown in Figure C-6. Do not strip more than 0.29 inch (7.4 mm) of insulation from the wire. Stripping more than the recommended amount of wire can leave exposed wire from the terminal block plug after installation.

Figure C-6 Stripping the DC-Input Power Source Wire

0.25 inch (6.3 mm) ± 0.02 inch (0.5 mm)

86460

Catalyst 3750 Switch Hardware Installation Guide

	OL-6336-07	C-5

Image 125

Cisco Systems WSC3750X24TS specifications Figure C-6 Stripping the DC-Input Power Source Wire

Contents

Catalyst 3750 Switch Hardware Installation Guide Page N T E N T S Rear Panel Overview Troubleshooting SFP Module Ports Organization AudiencePurpose Conventions Related Publications Device manager online help available on the switch Catalyst 3750 Switch Hardware Installation Guide Product Overview Features Product Overview Features Catalyst 3750-24FS Switch Front Panel Description Fast Ethernet Front Panel SwitchesFront Panel Description 10/100 ports SFP module slots Catalyst 3750-48TS Switch Front Panel Description Catalyst 3750-24TS Switch Front Panel Description Catalyst 3750-48PS Switch Front Panel Description Catalyst 3750-24PS Switch Front Panel Description10/100 PoE ports 2 SFP module slots 10/100 PoE ports 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 Catalyst 3750G-24PS Switch Front Panel Description Catalyst 3750G-48TS Switch Front Panel Description10/100/1000 ports SFP module slots 10/100/1000 PoE ports 2 SFP module slots 10/100/1000 ports Xenpak module slot Catalyst 3750G-48PS Switch Front Panel DescriptionCatalyst 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 SwitchLEDs Speed LED System LED Duplex LED Port LED Status LED Mode button Master LED Stack LED Mode button Status LED PoE LED Master LED Stack LED Mode button Status LED Stack LED Master LED Speed LEDDuplex LED System LED Speed LED System LED Duplex LED 18 Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch LEDs Color System Status System LED Master LED Port status Port status. This is the default modePort LEDs and Modes Port speed Port operating speed 10, 100, or 1000 Mb/s 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 ConnectorDC 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 Powering Off the Switch Powering On the Switch and Running PostIf you plan to stack your switches, read these sections Planning the Stack Cabling Considerations Powering ConsiderationsPlanning 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 SwitchThis 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-MountingAttaching 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 Monitor Switch LEDs Verify Switch Post ResultsVerify Switch Connections Bad or Damaged Cable PoE Connections Transceiver Module Port IssuesLink Status Spanning Tree Loops Port and Interface SettingsPing the End Device Speed, Duplex, and Autonegotiation Monitor Switch PerformanceAutonegotiation and NIC Cards Cabling Distance 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 PortsMeter, 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 CLIAccessing 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 InformationIP Settings Enter an enable password, and press Return These choices are displayed OL-6336-07 Considerations Pinouts B-7 Numerics Connection procedures Connecting to the console port D-5Connectors and cables Console port RPS Specifications DC power caution Interpreting Master PoE Port Document conventions Shock hazard warning High-powered devices Power Connecting to Connectors LEDs Results Running at power on Running at powerupPower connection warning RJ-45 connector, console port RJ-45 console port Xenpak modules caution Xenpak module rubber plugs warning