SMC Networks 24/16 - Manual (Page 25)

C
ABLES
14
RJ-45 Connector Pin Assignments
Caution: DO NOT plug a phone jack connector into any RJ-45
port. Use only twisted-pair cables with RJ-45 connectors
that conform with FCC standards.
An Ethernet or Fast Ethernet twisted-pair link segment requires
two pairs of wires. Each wire pair is identified by two different
colors. Each wire pair must be attached to the RJ-45 connector in a
specific orientation detailed below.
Because all ports on this switch support automatic MDI/MDI-X
operation, you can use straight-through cables for all network
connections to PCs or servers, or to other switches or hubs.
RJ-45 Pin Assignments
Straight-Through Cable
RJ-45 Pin Assignments
Crossover Cable
End 1 End 2 End 1 End 2
1 (Tx+)
2 (Tx-)
3 (Rx+)
6 (Rx-)
1 (Tx+)
2 (Tx-)
3 (Rx+)
6 (Rx-)
1 (Tx+)
2 (Tx-)
3 (Rx+)
6 (Rx-)
3 (Rx+)
6 (Rx-)
1 (Tx+)
2 (Tx-)