Between a first equipment and a second equipment connected to a
predetermined bus line, it is arranged that data for setting, etc. on
input selection in the first equipment is instructed from the second
equipment in the form of command having a predetermined format through the
bus line, thus allowing an independent remote control to be performed
between the first equipment and the second equipment. Moreover, data on
input selection in the first equipment is transmitted to the second
equipment, so that, for example, the remote control of the input selection
in the first equipment linking with the operation of the second equipment
will be performed satisfactorily.
