CABLES
100BASE-TX/10BASE-T Pin Assignments
With 100BASE-TX/10BASE-T cable, pins 1 and 2 are used for transmitting data, and pins 3 and 6 for receiving data.
RJ-45 Pin Assignments
Pin Number | Assignment1 |
1 | Tx+ |
| |
2 | Tx- |
| |
3 | Rx+ |
| |
6 | Rx- |
| |
1:The “+” and “-” signs represent the polarity of the wires that make up each wire pair.
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.
Straight-Through RJ-45 Pin Assignments
End 1
1(Tx+)
2(Tx-)
3(Rx+)
6(Rx-)
End 2
1(Tx+)
2(Tx-)
3(Rx+)
6(Rx-)
