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Appendix B
Connector and Cable Specifications
4. 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on
the fiber quality, the number of splices, and the connectors.
Four Twisted-Pair Cable Pinouts
Figure B-10
Switch
1 TPO+
2 TPO-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
Figure B-11
Switch
1 TP0+
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
Two Twisted-Pair Cable Pinouts
Figure B-12
Switch
3 TD+
6 TD–
1 RD+
2 RD–
OL-19593-03
Four Twisted-Pair Straight-Through Cable Schematic
Router or PC
1 TP1+
2 TP1-
3 TPO+
6 TPO-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
Four Twisted-Pair Crossover Cable Schematic
Switch
1 TP0+
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
Two Twisted-Pair Straight-Through Cable Schematic
Router or PC
3 RD+
6 RD–
1 TD+
2 TD–
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
Cable and Adapter Specifications
B-7
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