Contraplex signaling allows a single channel or physical medium to carry two simultaneous message streams moving in opposite directions. It operates as a specific form of full-duplex communication, often deployed in multiplexing systems to maximize the efficiency of legacy copper or fiber runs. By separating the forward and reverse paths through frequency domains or phase shifting, engineers prevent the opposing signals from colliding or causing destructive interference.
We need to configure a contraplex link on the main trunk so we can handle the bidirectional telemetry without running a second cable.
While often used interchangeably with full-duplex, contraplex specifically emphasizes the simultaneous, opposing flow of multiplexed signals on a shared physical path.