The Bosch LBB1990/00 Plena Voice Alarm Controller is a certified emergency voice evacuation and public address controller, designed to deliver clear, reliable announcements during emergencies and daily operations. It is EN 54-16 and EN 60849 compliant, making it suitable for life-safety applications in commercial and public buildings across India. This all-in-one controller features a powerful built-in 240W amplifier, six independent 100V speaker zones, and advanced system supervision to ensure uninterrupted operation. It supports priority emergency triggers, background music control, and paging, making it ideal for malls, hospitals, airports, schools, factories, hotels, IT parks, and government buildings. What is the main use of Bosch LBB1990/00?A-1 It is used for voice evacuation, emergency announcements, and public address systems in large buildings where safety compliance is required. Is this controller suitable for emergency applications in India?A-2 Yes. It is EN 54-16 certified, widely accepted for fire alarm and evacuation systems in India. Can it work during power failure?A-3 Yes. It supports 24V DC battery backup, ensuring operation during mains power failure. How many zones can this controller handle?A-4 The controller supports 6 speaker zones, expandable with additional Bosch zone routers. Is it compatible with Bosch call stations?A-5 Yes. It works seamlessly with Bosch Plena call stations for paging and emergency use. Specifications Product Type Plena Voice Alarm System Controller (main PA/emergency unit) Certification EN 54‑16 / EN 60849 certified for voice alarm systems Mains Power Supply 230/115 VAC ±15%, 50/60 Hz Max Power Consumption ~600 VA Battery Power Supply 24 V DC, 15% / ‑15% (with backup) Output Power (RMS/Max) 240 W / 360 W amplifier with -1 dB reduction on battery Frequency Response 60 Hz – 18 kHz ( 1/‑3 dB) Distortion < 1% @ rated output, 1 kHz Bass Control ± 8 dB @ 100 Hz Treble Control ± 8 dB @ 10 kHz Mic/Line Input 1 × XLR 6.3 mm jack input, configurable priority Sensitivity (Mic/Line) Mic: ~1 mV; Line: ~1 V Impedance Mic > 1 kΩ; Line > 5 kΩ Signal‑to‑Noise Ratio > 75 dB (min vol/muted) Phantom Power (Mic) 12 V (mic mode only) Trigger Inputs 12 × (6 Emergency 6 Business) Loudspeaker Outputs 6 × transformer‑isolated 100 V outputs (six zones) Line Input (BGM / Call Station) RCA (Cinch) stereo to mono balanced Tape Output 1 × RCA (2 × mono) BGM Zone Output Attenuation Multi‑step attenuation from 0 to ‑15 dB Dimensions (H × W × D) 144 × 430 × 370 mm (3U rack) Weight Approx. 15–21 kg (varies by configuration) Mounting 19″ rack (3U) Operating Temp. ‑10 °C to 55 °C Storage Temp. ‑40 °C to 70 °C Relative Humidity < 95 % non‑condensing
