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Appendix B Cabling Specifications
B-2
Cisco 1700 Router Hardware Installation Guide
78-5405-03
Ethernet Cables
This section describes the Ethernet cables that are used to connect the router to
your local Ethernet network. A 10/100BaseTX router, like the Cisco 1700 router,
requires Category 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP)
cable.
Table B-1 Straight-Through Ethernet Cable
(RJ-45-to-RJ-45) Pinouts
RJ-45
Pin
1
1.Pins 4, 5, 7, and 8 are not used for signaling.
Signal Direction
RJ-45
Pin
1 TX+ —> 1
2 TX– —> 2
3RX+ <— 3
6RX– <— 6