Appendix B Cabling Specifications

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

 

 

RJ-45

Pin1

Signal

Direction

Pin

1

TX+

—>

1

 

 

 

 

 

 

2

TX–

—>

2

 

 

 

 

 

 

3

RX+

<—

3

 

 

 

 

 

 

6

RX–

<—

6

 

1.Pins 4, 5, 7, and 8 are not used for signaling.

 

Cisco 1700 Router Hardware Installation Guide

B-2

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Cisco Systems 1700 manual Ethernet Cables, RJ-45 Pin Signal Direction, Tx+ Rx+