The Camera Corps Data Multiplexer unit allows up to three serial audio data signals to be multiplexed together to provide a single audio data output.
The three input data signals may be of different data rates which are selectable using DIP switches inside the unit.
The data rate of the output may also be set to any of the three standard data rates (1200, 2400 or 4800 baud), but care must be taken to ensure that the output data rate is fast enough to cope with the incoming data rates to prevent any loss of data.