Smc-networks SMC8002CM-US User Manual download pdf (Page 14)

Port and Cable Assignments

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.

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled with an

“X” (MDI-X) or neither port is labeled with an “X” (MDI), a crossover must be

implemented in the wiring.

Straight-Through RJ-45 Pin Assignments

End 1 End 2

1 (RD+) 1 (TD+)

2 (RD-) 2 (TD-)

3 (TD+) 3 (RD+)

6 (TD-) 6 (RD-)

Crossover RJ-45 Pin Assignments

End 1 End 2

1 (TD+) 3 (RD+)

2 (TD-) 6 (RD-)

3 (RD+) 1 (TD+)

6 (RD-) 2 (TD-)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19

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Smc-networks SMC8002CM-US User Manual Page 14