Cisco Systems OL-6157-01 manual Figure B-2 10/100 RJ-45 Pinouts

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Appendix B Connectors and Cables

Connector Specifications

Figure B-2 10/100 RJ-45 Pinouts

Pin Label

1RD+

2RD-

3TD+

4NC

5NC

6TD-

7NC

8NC

1 2 3 4 5 6 7 8

H5318

When connecting 10/100 ports to other devices, such as servers, workstations, and routers, you can use

atwo or four twisted-pair, straight-through cable wired for 10BASE-T and 100BASE-TX. Figure B-6shows the two twisted-pair, straight-through cable schematics. Figure B-8shows the four twisted-pair, straight-through cable schematics.

When connecting the ports to other devices, such as switches or repeaters, you can use a two or four twisted-pair, crossover cable. Figure B-7shows the two twisted-pair, crossover cable schematics. Figure B-9shows the four twisted-pair, crossover cable schematics.

You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T devices. You must use Category 5 cabling when connecting to 100BASE-TX devices.

Note Use a straight-through cable to connect two ports only when one port is designated with an X. Use a crossover cable to connect two ports when both ports are designated with an X or when both ports do not have an X.

Catalyst 2940 Switch Hardware Installation Guide

	B-2	OL-6157-01

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Contents Catalyst 2940 Switch Hardware Installation Guide Corporate HeadquartersCatalyst 2940 Switch Hardware Installation Guide N T E N T S Installation Accessing the CLI Through the Console Port D-2 Contents Catalyst 2940 Hardware Installation Guide Audience PurposeConventions Bewaar Deze Instructies Warnung Wichtige SicherheitshinweiseAvvertenza Importanti Istruzioni Sulla Sicurezza Aviso Instruções Importantes DE SegurançaOL-6157-01 GEM Disse Anvisninger Xii Related Publications Obtaining Documentation Cisco.comDocumentation CD-ROM Ordering DocumentationObtaining Technical Assistance Documentation FeedbackCisco TAC Website Opening a TAC Case Obtaining Additional Publications and Information TAC Case Priority DefinitionsXvii Xviii Setting up the Switch FeaturesFront-Panel Description 10/100 Ethernet ports 100BASE-FX port SFP module slotPort Numbering 10/100 Ports10/100/1000 Port Port or Slot type Catalyst 2940-8TT-S Catalyst 2940-8TF-S100BASE-FX Port SFP Module SlotType Cisco Part Number SFP Modules Micron62.5/125 micron 50/125 micron Micron Single-mode Cable Guard LEDsMode LED Port Mode Description Color System StatusPort Mode Color Meaning Power Connector Rear-Panel DescriptionConsole Port Security SlotsManagement Options OL-6157-01 Installation Preparing for InstallationChapter Installation Guidelines Verifying Package ContentsVerifying Switch Operation Installing the Switch Installing the Switch on a Desk Without Mounting ScrewsInstalling the Switch on a Desk With Mounting Screws Installing the Mounting Screws on Top of a Desk Installing the Switch Under a Desk Mounting the Switch on Top of a DeskInstalling the Mounting Screws Under a Desk Installing the Switch on a Wall Mounting the Switch Under a DeskThis Side Switch Screw Slides on this way Connecting to an SFP Module Installing the Switch Magnet MountConnecting to an SFP Module Port Connecting to 10/100 Ports and the 10/100/1000 Port Connecting to a 10/100 PortConnecting to the 100BASE-FX Port 10 Connecting to a 100BASE-FX Port11 Connecting to an SFP Module Port Where to Go Next Chapter Diagnosing Common Problems Understanding Post ResultsSymptom Possible Cause Resolution B-5 throughNo connectivity to SFP Poor performance or excessive System LED is amber OL-6157-01 Power Requirements Physical DimensionsEnvironmental Ranges Fiber-Port Power Levels 100BASE-FX port Slot1 SafetySFP module Table A-3 Catalyst 2940 Switch Agency Approvals OL-6157-01 Connectors and Cables Connector SpecificationsFigure B-2 10/100 RJ-45 Pinouts Connecting to 10BASE-T and 100BASE-TX Devices 10/100/1000 PortsFigure B-4 MT-RJ Connector Cable and Adapter Specifications Two Twisted-Pair Cable PinoutsFour Twisted-Pair Cable Pinouts for 10/100 Ports TD+Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports TPOConnecting to a PC Cable and Adapter PinoutsIdentifying a Rollover Cable OL-6157-01 Configuring the Switch with the CLI-Based Setup Program Methods for Accessing the CLIAccessing the CLI Through the Console Port Taking Out What You NeedConnecting to a Power Source Connecting to the Console PortFigure C-3 Connecting a Switch to a PC Starting the Terminal Emulation SoftwareEntering the Initial Configuration Information IP SettingsCompleting the Setup Program These choices appear CLI Numerics IN-2 IN-3 IN-4 IN-5 IN-6