| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve convenience wherein a prescribed lighting time of shared illumination can be surely obtained even by a person lighting the shared illumination later. SOLUTION: A system comprises supervisory terminal devices Q1 ,...Q6 forming a contact output for illumination control as a supervisory signal to be output to a transmission line L, transmitting unit P outputting a control signal corresponding to the supervisory signal from the respective supervisory terminal device to the transmission line, control terminal devices R1 ,...R7 performing a contact output for illumination control, based on the control signal received from the transmission line and shared illuminations V5 , V6 lighted by the first or second supervisory signal. An on-priority control means with time limit, put out after lighted by a predetermined prescribed time T0 at each generating a contact output of the control terminal device by the control signal corresponding to the last supervisory signal lighting shared illumination, is provided.</p> |
