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B-3
RJ-45 Port Pin Assignments
Pin MDI Signal Name* MDI-X Signal Name*
1 Transmit Data (TD+) Receive Data (RD+)
2 Transmit Data (TD-) Receive Data (RD-)
3 Receive Data (RD+) Transmit Data (TD+)
6 Receive Data (RD-) Transmit Data (RD-)
Pins 4, 5, 7, and 8 are not connected.
* The “+” and “-” signs represent the polarity of the wires that make up each
wire pair.