| 摘要 |
In a polling type surveillance control apparatus for a security system, specific addresses are assigned to respective terminal devices such as smoke detectors, temperature sensors, gas leakage detectors, fire partitions and smoke dampers. When an address detector in one of the terminal devices detects a coincidence between an address signal from a central station and a preset or stored self address, an indication is provided on a display of the energization of the terminal device and power control thereof is also performed. <IMAGE> |
