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C
ABLES
Figure B-1 illustrates how the pins on the RJ-45 connector are
numbered. Be sure to hold the connectors in the same orientation
when attaching the wires to the pins.
Figure B-1. RJ-45 Connector Pin Numbers
Straight-through Cable
Straight-Through RJ-45 Pin Assignments
End 1
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
Pins 4, 5, 7 and 8 are not connected.
Crossover Cable
End 1
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
Pins 4, 5, 7 and 8 are not connected.
B-2
Crossover RJ-45 Pin Assignments
End 2
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
End 2
3 (RD+)
6 (RD-)
1 (TD+)
2 (TD-)
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