Cisco Catalyst 2975 Hardware Installation Manual page 51

Appendix B Connector and Cable Specifications
Figure B-7
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Figure B-8
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Figure B-9
Pin 1
OL-17784-01
Two Twisted-Pair Straight-Through Cable Schematic
Router or PC
3 RD+
6 RD–
1 TD+
2 TD–
Two Twisted-Pair Crossover Cable Schematic
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Identifying a Crossover Cable
Pin 1 on one connector and
pin 8 on the other connector
should be the same color.
Pin 8
Catalyst 2975 Switch Hardware Installation Guide
Cables and Adapters
B-5