| 摘要 |
PROBLEM TO BE SOLVED: To provide fire warning equipment having an external test tool capable of easily specifying a test object appliance.SOLUTION: A radio communication system comprises an external test tool E for performing a state request to a radio relay and a repeater relay and a sensor which are pieces of equipment lower than the radio relay in the communication hierarchy, with respect to the radio relay. A state information signal used on the radio relay and repeater relay is constituted in a data area of sensor information for storing appliance state information of the sensor, a data area of repeater relay information for storing appliance state information of the repeater relay, and a data area of the radio relay information for storing appliance state information of the radio relay. When the state request from the external test tool E is started, the appliance state information of the radio relay is stored in the data area of the radio relay information which is not used during state collection processing by the radio relay.SELECTED DRAWING: Figure 1 |
