| 摘要 |
PROBLEM TO BE SOLVED: To rapidly perform interlocking operation by suppressing an alarm delay at a reception side accompanied by intermittent reception. SOLUTION: A reception circuit 44 receives an event signal from the other alarm by intermittently performing reception operation in each preset prescribed reception period so as to guarantee a battery service life. A reception period control part changes the reception period of the reception circuit 44 into a shorter period based on the setting operation of a reception period setting switch 62, and suppresses a delay time of the interlocking alarm within the shortened intermittent reception period. COPYRIGHT: (C)2011,JPO&INPIT
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