SIGNAL TRANSFER EQUIPMENT FOR FIRE DISPLAY FOR FIRE ALARM FACILITIES

PURPOSE: To monitor disconnection by displaying fire on a lot of fire displays by reporting the generation of disconnection to a fire receiver without specifying any fire display when the disconnection from any low-order fire display is generated. CONSTITUTION: A microprocessor (MPU) 21, which is provided at signal transfer equipment 100, for controlling the entire signal transfer equipment 100 and a ROM 22 for storing the program of flow chart poll respective plural low-order fire displays r1, r2, r3... and monitor the disconnection of the respective plural low-order fire displays r1, r2, r3... When any one of plural low-order fire displays r1, r2, r3... is disconnected, the generation of disconnected is reported to a fire receiver RE. Thus, when any one of plural low-order fire displays r1, r2, r3... is disconnected, the generation of disconnection at the signal transfer equipment 100 is reported to the fire receiver RE without specifying any low- order fire display.