Cisco 2431 - IAD Router - Configuring ATM T1-WAN Ports

B-4
Cisco ME 2400 Ethernet Access Switch Hardware Installation Guide
OL-7678-01
Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
Figure B-5 Two Twisted-Pair Crossover Cable Schematic
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
Figure B-6 and Figure B-7 show the schematics of four twisted-pair cables for 1000BASE-T SFP
module ports on Cisco ME switches.
Figure B-6 Four Twisted-Pair Straight-Through Cable Schematic for 1000BASE-T Ports
Figure B-7 Four Twisted-Pair Crossover Cable Schematics for 1000BASE-T Ports
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
H5579
1 RD+
2 RD-
3TD+
6TD-
1 TD+
Switch Router or PC
2 TD-
3 RD+
6 RD-
4NC
5NC
7NC
8NC
4NC
5NC
7NC
8NC
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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-
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