SMC Networks 48-Port - Manual (Page 53)

C
ABLES
B-3
100BASE-TX/10BASE-T Pin Assignments
With 100BASE-TX/10BASE-T cable, pins 1 and 2 are used for
transmitting data, and pins 3 and 6 for receiving data.
Straight-Through Wiring
If the twisted-pair cable is to join two ports and only one of the
ports has an internal crossover (MDI-X), the two pairs of wires
must be straight-through.
RJ-45 Pin Assignments
Pin Number Assignment 1
1 Tx+
2 Tx-
3 Rx+
6 Rx-
1: The “+” and “-” signs represent the polarity of
the wires that make up each wire pair.
Straight-Through RJ-45 Pin Assignments
End 1 End 2
1 (Tx+) 1 (Tx+)
2 (Tx-) 2 (Tx-)
3 (Rx+) 3 (Rx+)
6 (Rx-) 6 (Rx-)