RELAY

PROBLEM TO BE SOLVED: To provide a relay allowing separation of only a relay intended for address setting from a fire receiver and other relays. SOLUTION: The relay has a casing in which a substrate 2 is housed, a terminal stand 3 for a trunk line which is connected to a transmission circuit 11 and a power supply circuit 12 mounted on the substrate 2 through a printed circuit and receives signals from the fire receiver and other neighboring relays, and a connector 6 for inputting an address connected to the transmission circuit 11 through the printed circuit. It comprises a cover 7 disposed in the casing in a manner to cover the connector 6, and a micro switch 5 that cuts off the connection among the terminal stand 3 for a trunk line, the transmission circuit 11, and the power supply circuit 12 when the connector 6 gets exposed by the operation of the cover 7. COPYRIGHT: (C)2008,JPO&INPIT