Automatic Polarity Detection and Correction
If a receive data pair has the “+” and “-” signals inadvertently
switched, the hubs correct the signal inversion automatically,
allowing the data path to operate correctly.
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.
Pin assignments for Telco connectors are given on the next
page.
57
CABLES
End 1 End 2
1 (Tx+) 1 (Tx+)
2 (Tx-) 2 (Tx-)
3 (Rx+) 3 (Rx+)
6 (Rx-) 6 (Rx-)
Straight-Through RJ-45 Pin Assignments
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