APPENDIX A

A.1 Device‘s RJ-45 Pin Assignments

■10/100Mbps, 10/100Base-TX

Contact

MDI

MDI-X

1

1 (TX +)

3

 

 

 

2

2 (TX -)

6

 

 

 

3

3 (RX +)

1

 

 

 

6

6 (RX -)

2

 

 

 

4, 5, 7, 8

Not used

Not used

 

 

 

Implicit implementation of the crossover function within a twisted-pair cable, or at a wiring panel, while not expressly forbidden, is beyond the scope of this standard.

A.2 RJ-45 cable pin assignment

6 321 6 321

6 3 2 1

There are 8 wires on a standard UTP/STP cable and each wire is color-coded. The following shows the pin allocation and color of straight cable and crossover cable connection:

Figure A-1: Straight-Through and Crossover Cable

Please make sure your connected cables are with same pin assignment and color as above picture before deploying the cables into your network.

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