Cisco Catalyst 2950 - Page 156

Appendix B Connectors and Cables
Cable and Adapter Specifications
B-10
Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-05
Figure B-11 Four Twisted-Pair Crossover Cable Schematic for 10/100 Ports
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
Figure B-12 and Figure B-13 show the schematics of four twisted-pair cables for
10/100/1000 ports on Catalyst 2950T-24 switches, Catalyst 2950 LRE switches,
and 1000BASE-T GBIC module ports.
Figure B-12 Four Twisted-Pair Straight-Through Cable Schematic for
10/100/1000 and 1000BASE-T GBIC Module Ports
1 RD+
2 RD-
3TD+
6TD-
1 RD+
MGMT 10/100
Switch/Hub
2 RD-
3TD+
6TD-
4NC
5NC
7NC
8NC
4NC
5NC
7NC
8NC
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1 TPO+
2 TPO-
3TP1+
6TP1-
1 TP1+
Switch Switch
2 TP1-
3 TPO+
6 TPO-
4TP2+
5TP2-
7TP3+
8TP3-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
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