Up to eight call stations can be connected. The messages can be merged to allow even more flexible use of pre-recorded announcements and evacuation messages.The controller can be used as a stand-alone system with up to six zones, or expanded to up to 60 zones using additional six-zone routers. It is the basis of the Plena Voice Alarm System, and has all the essential functionality for compliance with the EN 60849 and 54‑16 standards, including full system supervision, loudspeaker line impedance supervision, a supervised emergency microphone on the front panel and a supervised message manager. The Plena Voice Alarm Controller is the heart of the voice alarm system.
