CABLE SPECIFICATIONS
The figure below 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.
With 10BASE-T/100BASE-TX cable, pins 1 and 2 are used for transmitting data, and pins 3 and 6 for receiving data. The “+” and “-” signs in the tables below are used to represent the polarity of the wires that make up each wire pair.
RJ-45 Pin Assignments
Pin
1
2
3
6
Assignment
Tx+
Tx-
Rx+
Rx-
42
