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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
2 1 3 6
1
2
3
6
2 1
3 6
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.