If controller is linked with alarm output and network fire control expansion board, it can also drive alarmannunciator calling to deter crime and warn the security guard.
如果控制器接了报警输出及消防联动扩展板，还可以现场驱动报警器鸣叫，威慑犯罪人员和提醒保安赶来。
2
Each Annunciator can have up to two Horn relays and two Group relays and each alarm channel can be configured to drive any of these common relays.
每个传感器都有两个喇叭继电器和两个群继电器，并且每个警报主频都可以驱动任何一个通用继电器。
3
The fire extinguishing gas spray device has an annunciator (53) that issues an alarm based on a fire occurrence signal or an earthquake occurrence signal from a disaster alarm device.