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B-7
Catalyst 3750 Switch Hardware Installation Guide
OL-6336-07
Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
Figure B-8 Two Twisted-Pair Crossover Cable Schematic
Four Twisted-Pair Cable Pinouts for 10/100 Ports
Figure B-9 and Figure B-10 show the schematics of four twisted-pair cables for 10/100/1000 ports.
Figure B-9 Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports
Figure B-10 Four Twisted-Pair Crossover Cable Schematic for 10/100/1000 Ports
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
H5579
1 TPO+
2 TPO-
3TP1+
6TP1-
1 TP1+
Switch Router or PC
2 TP1-
3 TPO+
6 TPO-
4TP2+
5TP2-
7TP3+
8TP3-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
65272
1 TPO+
2 TPO-
3 TP1+
6 TP1-
1TP0+
Switch Switch
2TP0-
3TP1+
6TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
4TP2+
5TP2-
7TP3+
8TP3-
65274