* One active signal output (short-circuit signal) to active other units. Can be connected to the EMC alarm input of other units such as, system power supply controller.

* receives phone calls to broadcast over PA system

* talk-back feature, automatic or manual operation

* Directly enter into the broadcast system

* Master / Slavor setting.

* Active signal output (similar to fire alarm signal).

* Password protection against unauthorized paging.

* Built-in monitoring loudspeaker.

* Optional rack-mount kit