Cisco 2975 - Manual (Page 51)

B-5
Catalyst 2975 Switch Hardware Installation Guide
OL-17784-01
Appendix B Connector and Cable Specifications
Cables and Adapters
Figure B-7 Two Twisted-Pair Straight-Through Cable Schematic
Figure B-8 Two Twisted-Pair Crossover Cable Schematic
Figure B-9 Identifying a Crossover Cable
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Router or PC
3 RD+
6 RD–
1 TD+
2 TD–
H5578
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
H5579
Pin 1
H10632
Pin 8
Pin 1 on one connector and
pin 8 on the other connector
should be the same color.