The LBB1990/00 is a high-performance Voice Alarm Controller from BOSCH, designed for use in public address and emergency sound systems. It serves as the central control unit in the Plena Voice Alarm System, handling routing, supervision, message storage, and system control. With built-in emergency and alert message storage, zone control, and fault monitoring, it ensures reliable operation in critical paging and evacuation scenarios.
- Model: LBB1990/00
- Function: Central controller for voice evacuation and public address systems
- Message Storage: Built-in digital storage for pre-recorded emergency and alert messages
- Zones: Supports up to 6 zones with A/B wiring for redundancy
- Inputs/Outputs:
- – 6 supervised speaker outputs
- – 6 contact inputs and 3 control outputs
- – Interface for call stations and fire panel integration
- Monitoring: Automatic supervision of microphone, amplifier, speaker lines, and control lines
- Display & Control: LED indicators and front-panel buttons for system status and control
- Power Supply: 24V DC operation with backup battery support
- Applications: Ideal for schools, shopping centers, airports, industrial sites, and public buildings
