| 摘要 |
PROBLEM TO BE SOLVED: To provide fire alarm equipment capable of preventing the overlap of the test timing of a fire sensor.SOLUTION: In fire alarm equipment in which a plurality of fire sensors 20 are connected to transmission lines L1 and L2 from a fire receiver 10, the fire sensor 20 includes: a storage part 24 for storing its own address uniquely set by each fire sensor 20; a transmission/reception part 25 for receiving a test result return instruction from the fire receiver 10 or a test result signal from the other fire sensor through the transmission line; and a control part 21 for executing the test of an infrared sensor 23. The control part 21 executes the test of its own infrared sensor 23 when the transmission/reception part 25 receives the test result signal transmitted from the fire sensor 20 which executes the test N times before itself, or receives the test result return instruction transmitted to the fire sensor which executes the test N times before itself among the fire sensors 20 connected to the transmission line L1 (or L2).SELECTED DRAWING: Figure 3 |
