FIRE ALARM SYSTEM AND FIRE ALARM DEVICE

摘要

Disclosed is a fire alarm system (S) equipped with one first fire alarm device (10M) and a second fire alarm device (10S). The first fire alarm device (10M) is equipped with a first storage device (13M) which stores a unique code which is unique to the fire alarm system (S) and a shared code which is shared by multiple fire alarm systems (S). The second fire alarm device (10S) is equipped with a second storage device (13S) which stores a unique code. When the second fire alarm device (10S) no longer senses a fire, said device stops outputting a fire alarm and transmits a signal which includes an alarm-stop message and a unique code. When the second fire alarm device (10S) receives a signal which includes an alarm-stop message and a unique code, said device stops outputting a fire alarm. When the first fire alarm device (10M) receives a signal which includes an alarm-stop message and a unique code and which does not include a shared code, said device stops outputting a fire alarm and transmits a signal which includes an alarm-stop message and the shared code. When the first fire alarm device (10M) receives a signal which includes an alarm-stop message and a shared code, said device stops outputting a fire alarm and transmits a signal which includes an alarm-stop message and a unique code.