INDIVIDUAL RELAY FOR AUTOMATIC FIRE ALARM SYSTEM AND AUTOMATIC FIRE ALARM SYSTEM USING THE RELAY

摘要

PROBLEM TO BE SOLVED: To provide a relay for remote test for enabling a receiver side to quickly detect the disconnection of a sensor line for remote test and an automatic fire alarm system utilizing the relay.;SOLUTION: An individual relay 3 for this automatic fire alarm system is provided with input-output terminals 3c additionally connected to a monitoring line L1 derived from a fire receiver 1 for use and connected to the monitoring line L1, a sensor line connection terminal 3d for connecting a sensor line L2 provided independently of the monitoring line L1, a receiver connection terminal 3e for connecting a small monitoring receiver 6 for receiving a movement report when a fire sensor 5 connected to the sensor line L2 operates, and a monitoring line interruption circuit 3a for forcedly opening the monitoring line L1 when the disconnection of the sensor line L2 is detected.;COPYRIGHT: (C)2003,JPO