Importance

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Abstract

For storing identification number information of terminals in a reception unit such as a fire control and indicating equipment, it is unnecessary to replace a memory with another at a factory or an installation site. Moreover, a man-made error accompanying a modification work is prevented. In a fire alarm system, a plurality of fire supervising or control terminals are connected to the reception unit. Identification number information that varies depending on the type of a terminal is assigned to the plurality of terminals. The reception unit includes an electrically rewriteable nonvolatile memory, an acquisition device, and a rewriting device. The identification number information of the plurality of connected terminals is stored in the nonvolatile memory that is electrically programmable. The acquisition device acquires identification number information from the plurality of terminals. The rewriting device stores, in response to an instruction, the identification number information of the plurality of terminals, which is acquired by the acquisition device, in the nonvolatile memory so as to thus rewrite the contents of the nonvolatile memory.

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First Claim