SMC Networks SMC6608M, SMC6608T manual Straight-Through Wiring, Crossover Wiring

PIN ASSIGNMENTS

Straight-Through Wiring

If the twisted-pair link segment is to join two ports and only one of the ports has an internal crossover, the two pairs of wires must be straight-through.

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-)

Crossover Wiring

If the twisted-pair link segment is to join two ports and either both ports are labeled with an “x” or neither port is labeled with an “x,” a crossover must be implemented in the wiring.

Crossover RJ-45 Pin Assignments

End 1	End 2
1 (Tx+)	3 (Rx+)
2 (Tx-)	6 (Rx-)
3 (Rx+)	1 (Tx+)
6 (Rx-)	2 (Tx-)

B-3