| 摘要 |
PURPOSE:To enable free selection of the site of installation of a subreceiver and to reduce the number of wirings between a receiver and subreceiver by installing the subreceiver provided with a repeater connected to a multiplex transmission signal line and receives monitoring information of each repeater sent out from the receiver and having a displaying means that displays receiving outputs of the receiver. CONSTITUTION:Plural repeaters 2 are connected to a multiplex transmission signal line 1 to which a receiver is connected, and a subreceiver is connected to the multiplex transmission signal line 1. The subreceiver 5 receives data signals for display from the multiplex transmission signal line 1 and displays. The repeater 2 has an IC8 for repeater and an address setting section 9 for setting addresses of the IC8 for repeater. A latch 10 for display data and a clock generating section 11 for display element selection are connected to the IC8 for repeater and latch output of the latch 10 for display data and clock outputs from the clock generating section 11 for display element selection are inputted to a display element selector circuit 12, and light up and control a seven-segment type LED6 for display through a driver 13 for display. |
