Patent ID: 6954151

Claim:
A selector switch for a supervisory remote control system, wherein said control system comprises: a plurality of operation terminals each having an individual address; a plurality of control terminals each having an individual address; a signal line connecting a signal transmission unit to said operation and control terminals; and said transmission unit configured to provide a control signal to said signal line according to a time-division-multiplexing manner such that when one of said operation terminals is operated, a load connected to one of said control terminals in an address correspondence with said operation terminal is controlled, each of the plurality of operation terminals having an indicator for indicating ON state and OFF state of the load controlled by operation of said operation terminal, wherein the selector switch comprises: a data receiver configured to receive data including conditions of the loads connected to said control terminals from said transmission unit through said signal line; memory configured to store the data received by said data receiver; a selector configured to select desired information from the data in said memory; an output unit configured to provide the desired information to an external device according to an order of said selectors; an indicating-mode setting unit configured to set one of first and second indicating modes in said transmission unit through said signal line, said first indicating mode being defined as an indicating mode that the indicator of said operation terminal indicates OFF state when at least one of the loads in a predetermined region is in the OFF state, and indicates ON state only when all of the loads in the predetermined region are in the ON state, and said second indicating mode being defined as an indicating mode that the indicator of said operation terminal indicates ON state when at least one of the loads in the predetermined region is in the ON state, and indicates OFF state only when all of the loads in the predetermined region are in the OFF state.