Control is done by means of an RS-232C connection to one of the two RS-232 ports on the unit. If possible, use serial port number one, as the reciever uses a larger data buffer with that port. The selected port should be configured in the reciever to be of type "Terminal" with a speed of 19200. Serial port parameters should be set to 19200 baud rate, no parity, 8 data bits, 1 stop bit and no terminator. Once configured, use RDAdmin to create inputs that correspond to the DVB stream names available on the selected DVB carrier.

Caution is needed when scheduling record events from the Unity4000, as the unit is capable of outputting a given DVB stream to only a single output at a time. Commanding a stream to an output will cause that stream to be silently deselected from a previously selected output.