Crossover Wiring - SMC Networks 48-Port Installation Manual

C
ABLES

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.
End 1
1 (Tx+)
2 (Tx-)
3 (Rx+)
6 (Rx-)
B-4
Crossover RJ-45 Pin Assignments
End 2
3 (Rx+)
6 (Rx-)
1 (Tx+)
2 (Tx-)