COAX Telemetry Protocol
Is it possible to control the Telemetry receiver DTMRX2 via coax telemetry protocol with the SM328B video matrix?
Telemetry over the coax is not available in SM328 matrix.
This is a function of the smaller video matrix SM164 and SM82.
Telemetry over the coax is then available as default in the DTMRX2 telemetry receiver, whilst in the DTRX3 telemetry receiver it is necessary to add the optional DTCOAX board.
For your case you need to use twisted pair cables by RS485 to control the DTMRX2.