PURPOSE: To prevent the generation of a setting mistake by performing the address setting for the terminal with an address setting operation-on the reception based on the address setting request from the terminal.

CONSTITUTION: An address setting operation part 6 on a receiver 1 receives an address setting request from the terminal, inputting the predetermined address number. After the input address is confirmed, an address is sent to the terminal through a switch operation, and the address is stored in a nonvolatile memory equipped with the terminal performing the address setting request. The address setting request from the terminal for a sensor 16 and analog sensors 3-4 and 3-5 is performed for a receiver 1 based on the testing alarm of the sensor by an alarm jig 30. Whereas a bell 4-1 as a controller and repeaters 3-1 and 3-2 as terminals connecting a fire protection door 4-2 perform address setting request for the receiver 1 by operating an address setting request switch on the repeater itself.