Cisco Systems OL-6157-01 manual Connectors and Cables, Connector Specifications, A P P E N D I X B

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