The MX806A LMR audio processor is intended too primarily to operate as the "Audio Terminal" or radio systems using the DBS800 Digitally Integrated Baseband Subsystem. The MX806A half-duplex device has signal paths and level setting elements that are configured and adjusted by digital information sent from the radio microcontroller using C-BUS protocol. (C-BUS is the serial interface for all DBS 800 ICs.)