| 摘要 |
PROBLEM TO BE SOLVED: To provide an isolator built-in fire detector for facilitating system construction and operation confirmation by including an isolator in a fire detector. SOLUTION: In the fire detector 1 configured with a detector head 10 and detector base 11 detachable, the detector base 11 has a pair of detector line terminals SAI and SAO connected to a feeder line La of a detector line L and a detector line common terminal SB connected to a common line Lb of the detector line L, wherein the isolator A is included in the detector base 11. In the isolator A, a control circuit 19C of the isolator A is connected to the detector line terminals SAI and SAO and the detector line common terminal SB. COPYRIGHT: (C)2008,JPO&INPIT
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