User manual

MDI/MDI-X Pin Assignments
Pin Number MDI-X Signal Name MDI Signal Name
1 Receive Data plus (RD+) Transmit Data plus (TD+)
2 Receive Data minus (RD-) Transmit Data minus (TD-)
3 Transmit Data plus (TD+) Receive Data plus (RD+)
6 Transmit Data minus (TD-) Receive Data minus (RD-)
Straight-through Cable Schematic
Switch Router / PC
3 TD+ 3 RD+
6 TD- 6 RD-
1 RD+ 1 TD+
2 RD- 2 TD-
Cross-over Cable Schematic
Switch Switch
3 TD+ 3 RD+
6 TD- 6 RD-
1 RD+ 1 TD+
2 RD- 2 TD-
Figure A.2: EIA/TIA-568B
Figure A.3: EIA/TIA-568A
65 Appendix A