Cisco Systems 2960 specifications Connecting to 1000BASE-T Devices

Appendix A Connector and Cable Specifications

Connector Specifications

When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as switches or repeaters, you can use a two or four twisted-pair, crossover cable. Figure A-6shows the two twisted-pair, crossover cable schematics. Figure A-8shows the four twisted-pair, crossover cable schematics.

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

Connecting to 1000BASE-T Devices

When connecting the ports to 1000BASE-T devices, such as servers, workstations, and routers, you must use a four twisted-pair, Category 5, straight-through cable wired for 10BASE-T, 100BASE-TX, and 1000BASE-T. Figure A-7shows the straight-through cable schematics.

When connecting the ports to other devices, such as switches or repeaters, you must use a four twisted-pair, Category 5 or higher crossover cable. Figure A-8shows the crossover cable schematics.

Note Be sure to use a four twisted-pair, Category 5 cable when connecting to a 1000BASE-T-compatible device.

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.

Figure A-1 10/100/1000 Port Pinouts

Pin Label

1TP0+

2TP0-

3TP1+

4TP2+

5TP2-

6TP1-

7TP3+

8TP3-

1 2 3 4 5 6 7 8

60915

Catalyst 2960 Switch Hardware Installation Guide

A-2 OL-7075-05