OPTICAL ALARM APPARATUS AND OPTICAL ALARM SYSTEM

摘要

PROBLEM TO BE SOLVED: To synchronize deviation of light emission control with light emission control of another optical alarm apparatus with a simple configuration.SOLUTION: An optical alarm apparatus built so as to be connectable in parallel with an optical alarm line includes: a light emission unit subjected to light emission control on the basis of a light emission pattern; a setting unit capable of setting the optical alarm apparatus to a first state (master); and a control unit for, when the optical alarm apparatus is set to the first state (master) by the setting unit, performing light emission control of the light emission unit on the basis of a first light emission pattern, and for performing output on the basis of a second light emission pattern, which is used for light emission control of another optical alarm apparatus and in which a deviation between a light emission timing specified by the first light emission pattern and a light emission timing is within a predetermined time.SELECTED DRAWING: Figure 7