Connecting To 1000Base-T Devices - Cisco Catalyst 2960 Hardware Installation Manual

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.
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.
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.
Be sure to use a four twisted-pair, Category 5 cable when connecting to a 1000BASE-T-compatible
Note
device.
Use a straight-through cable to connect two ports only when one port is designated with an X. Use a
Note
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
Catalyst 2960 Switch Hardware Installation Guide
A-2
Figure A-8
Figure A-7 shows the straight-through cable schematics.
10/100/1000 Port Pinouts
Pin Label
1 TP0+
2 TP0-
3 TP1+
4 TP2+
5 TP2-
6 TP1-
7 TP3+
8 TP3-
Appendix A
Figure A-6
shows the four twisted-pair, crossover cable schematics.
Figure A-8 shows the crossover cable schematics.
1 2 3 4 5 6 7 8
Connector and Cable Specifications
shows the two twisted-pair,
OL-7075-05