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B-6
Catalyst 2940 Switch Hardware Installation Guide
OL-6157-01
Appendix B Connectors and Cables
Cable and Adapter Specifications
Four Twisted-Pair Cable Pinouts for 10/100 Ports
Figure B-8 and Figure B-9 show the schematics of four twisted-pair cables for 10/100 ports.
Figure B-8 Four Twisted-Pair Straight-Through Cable Schematic for 10/100 Ports
Figure B-9 Four Twisted-Pair Crossover Cable Schematic for 10/100 Ports
1 TPO+
2 TPO-
3TP1+
6TP1-
1TP1+
Switch Router or PC
2TP1-
3 TPO+
6 TPO-
4TP2+
5TP2-
7TP3+
8TP3-
4TP3+
5TP3-
7TP2+
8TP2-
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1 RD+
2 RD-
3 TD+
6 TD-
1 RD+
Switch Switch
2 RD-
3TD+
6TD-
4NC
5NC
7NC
8NC
4NC
5NC
7NC
8NC
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