Cisco Systems OL-6157-01 manual Connectors and Cables, Connector Specifications

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A P P E N D I X B

Connectors and Cables

This appendix describes the connectors, cables, and adapters that you use to connect the switch to other devices.

Connector Specifications

These sections describe the connectors used with the Catalyst 2940 switches and contains this information:

•10/100 Ports, page B-1

•10/100/1000 Ports, page B-3

•100BASE-FX Port, page B-4

•SFP Module Slot, page B-4

•Console Port, page B-5

10/100 Ports

The 10/100 Ethernet ports use standard RJ-45 connectors and Ethernet pinouts with internal crossovers, as shown by an X in the port label on the switch, as shown in Figure B-1.

Figure B-1 Port Labels Showing Internal Crossovers

1x

2x

3x

4x

5x

10Base-T / 100Base-TX

89869

These ports have the transmit (TD) and receive (RD) signals internally crossed so that a twisted-pair straight-through cable and adapter can be attached to the port. Figure B-2shows the pinout.

Catalyst 2940 Switch Hardware Installation Guide

	OL-6157-01	B-1

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Contents Corporate Headquarters Catalyst 2940 Switch Hardware Installation GuideCatalyst 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 Conventions AudiencePurpose Warnung Wichtige Sicherheitshinweise Bewaar Deze InstructiesAviso Instruções Importantes DE Segurança Avvertenza Importanti Istruzioni Sulla SicurezzaOL-6157-01 GEM Disse Anvisninger Xii Related Publications Ordering Documentation Obtaining DocumentationCisco.com Documentation CD-ROMCisco TAC Website Opening a TAC Case Obtaining Technical AssistanceDocumentation Feedback TAC Case Priority Definitions Obtaining Additional Publications and InformationXvii Xviii Features Setting up the Switch10/100 Ethernet ports 100BASE-FX port SFP module slot Front-Panel DescriptionPort or Slot type Catalyst 2940-8TT-S Catalyst 2940-8TF-S Port Numbering10/100 Ports 10/100/1000 PortType Cisco Part Number 100BASE-FX PortSFP Module Slot 62.5/125 micron 50/125 micron Micron Single-mode SFP ModulesMicron LEDs Cable GuardColor System Status Mode LED Port Mode DescriptionPort Mode Color Meaning Rear-Panel Description Power ConnectorSecurity Slots Console PortManagement Options OL-6157-01 Preparing for Installation InstallationChapter Verifying Package Contents Installation GuidelinesVerifying Switch Operation Installing the Switch on a Desk With Mounting Screws Installing the SwitchInstalling the Switch on a Desk Without Mounting Screws Installing the Mounting Screws on Top of a Desk Mounting the Switch on Top of a Desk Installing the Switch Under a DeskInstalling the Mounting Screws Under a Desk Mounting the Switch Under a Desk Installing the Switch on a WallThis Side Switch Screw Slides on this way Installing the Switch Magnet Mount Connecting to an SFP ModuleConnecting to an SFP Module Port Connecting to a 10/100 Port Connecting to 10/100 Ports and the 10/100/1000 Port10 Connecting to a 100BASE-FX Port Connecting to the 100BASE-FX Port11 Connecting to an SFP Module Port Where to Go Next Chapter Understanding Post Results Diagnosing Common ProblemsB-5 through Symptom Possible Cause ResolutionNo connectivity to SFP Poor performance or excessive System LED is amber OL-6157-01 Environmental Ranges Power RequirementsPhysical Dimensions SFP module Fiber-Port Power Levels 100BASE-FX port Slot1Safety Table A-3 Catalyst 2940 Switch Agency Approvals OL-6157-01 Connector Specifications Connectors and CablesFigure B-2 10/100 RJ-45 Pinouts 10/100/1000 Ports Connecting to 10BASE-T and 100BASE-TX DevicesFigure B-4 MT-RJ Connector Two Twisted-Pair Cable Pinouts Cable and Adapter SpecificationsTD+ Four Twisted-Pair Cable Pinouts for 10/100 PortsTPO Four Twisted-Pair Cable Pinouts for 1000BASE-T PortsCable and Adapter Pinouts Connecting to a PCIdentifying a Rollover Cable OL-6157-01 Methods for Accessing the CLI Configuring the Switch with the CLI-Based Setup ProgramTaking Out What You Need Accessing the CLI Through the Console PortConnecting to the Console Port Connecting to a Power SourceStarting the Terminal Emulation Software Figure C-3 Connecting a Switch to a PCIP Settings Entering the Initial Configuration InformationCompleting the Setup Program These choices appear CLI Numerics IN-2 IN-3 IN-4 IN-5 IN-6