| 摘要 |
PURPOSE:To make an executive switch effective based on the selected state of a selective switch of its own station, and to easily operate the switch on a control console, by installing a signal line which interconnects across adjoining key stations that the executive switch of each station is turned on. CONSTITUTION:A key station monitors and controls plural secondary stations, and a pair of key stations constitute an N type remote monitoring and controlling device, and then, plural pairs of the N type remote monitoring and controlling devices constitute a remote monitoring and controlling device. Each adjoining master stations 2-1-2-N are connected with each other with turn on/turn off executing down inter-master station service signal lines 10-1-10-(N-1) and 11-1- 11-(N-1). Moreover, they are also connected with each other with turn on/turn off executing up inter-master station service signal lines 12-1-12-(N-1) and 13-1- 13-(N-1) and, at the same time, turn off and turn on executive SW signals 8-1- 8-N and 9-1-9-N from executive switches 6-1-6-N and turn on executive switches 7-1-7-N of a control console 1 are added to each master station 2-1- 2-N. Then, the executive switches are set to the effective condition based on the selected condition of the executive switch of its own station, and thus, the operation is made easier. |
