The Hegemon PLC ID System :

Power Line Carrier (PLC) transmits digital data between the tractor and the trailer utilizing the vehicle power line on the existing 7 pin wiring harness.

1) The PLC Identifier Tag when installed on a tractor or trailer will send out a unique programmable ID number at regular intervals onto the Vehicle Power Line.

Datasheet




2) The PLC Reader when installed on the tractor or trailer will read the ID number from the PLC Identifier Tag on the Vehicle Power Line and output the data on RS232 or J1708.