The Plena Voice Alarm Controller unit is the heart of the voice alarm system and has full system supervision, loudspeaker line impedance supervision, a supervised emergency microphone on the front panel and a supervised message manager. Messages can be merged to allow even more flexible use of pre-recorded announcements and evacuation messages.
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The controller can be used as a stand-alone system with up to six zones, or expanded to up to 120 zones using additional six-zone routers. Up to eight call stations can be connected. Interconnections are made using standard RJ45 connectors and shielded CAT-5 cable.
A built-in 240 W amplifier provides the power for the emergency call channel and BGM. Additional Plena Amplifiers can be added to provide two-channel operation. All amplifiers are supervised. The audio output uses standard analog audio 100 V line switching for full compatibility with the Plena family of public address equipment and Bosch EVAC-compliant loudspeakers. The system is configured using DIP switches for basic functionality and a PC for more advanced functions.
The controller has two BGM source inputs and a mic/ line input with configurable priority, speech filter, phantom power and selectable VOX activation. A total of 16 priority levels can be specified for microphone, call stations and trigger inputs for optimum system flexibility.
The powerful 240 W output section has six transformer-isolated 100 V constant-voltage outputs for driving 100 V loudspeakers in six separate zones. The 100 V-technique reduces line losses on longer distances and provides easy parallel connection of multiple loudspeakers. All zones may be individually selected from the front panel, and the BGM output level in each zone can be individually set in six steps. The controller supports A/B wiring.
|Voltage||230/115VAC, ±15%, 50/60 Hz|
|Current inrush||8 A|
|Max power consumption||600 VA|
|Battery power supply Voltage||24 VDC, +15% / -15%|
|Battery power supply Current max||14 A|
|Phantom power supply||12 V (mic mode only)|
|Output power (rms/maximum)||240 W / 360 W|
|Frequency response||60 Hz to 18 kHz (+1/-3 dB at -10 dB ref. rated output)|
|Distortion||<1% at rated output power, 1 kHz|
|Mic/line input||1 x|
|Line input||(BGM and PC call station)|
|Trigger Inputs||12 x (6 EMG, 6 business)|
|100 V input|
|Power handling capacity||1000 W|
|Tape output||1 x|
|100 V output||700 W rated per zone|
|Dimensions (H x W x D)||144 x 430 x 370 mm(19" wide, 3U high)|
|Weight||Approx. 21.17 kg|
|Operating temperature||-10 ºC to +55 ºC (14 ºF to +131 ºF)|
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