![]() ![]() ![]() Additional Plena Amplifiers can be added to provide two-channel operation, or for additional power if the total power requirement exceeds 240 W (maximum 480 W per 6 zones). A built-in 240 W amplifier provides the power for the emergency call channel and BGM. Interconnections are made using standard RJ45 connectors and shielded CAT-5 cable. The controller can be used as a stand-alone system with up to 6 zones, or expanded to up to 60 zones using additional 6-zone routers. The messages can be merged to allow even more flexible use of pre-recorded announcements and evacuation messages. It is the basis of the Plena Voice Alarm System, and has all the essential functionality for compliance with the IEC 60849 standard, 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. ![]()
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