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A-6
Catalyst 2960 Switch Hardware Installation Guide
OL-7075-05
Appendix A Connector and Cable Specifications
Cable and Adapter Specifications
Two Twisted-Pair Cable Pinouts
Figure A-5 and Figure A-6 show the schematics of two twisted-pair cables for connecting to 10BASE-T-
and 100BASE-TX-compatible devices.
Figure A-5 Two Twisted-Pair Straight-Through Cable Schematic
Figure A-6 Two Twisted-Pair Crossover Cable Schematic
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
Figure A-7 and Figure A-8 show the schematics of four twisted-pair cables for 10/100/1000 ports on
Catalyst 2960 switches.
Figure A-7 Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports
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
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-
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