Bosch LBB1957/00-Plena Voice Alarm Keypad

Bosch LBB1957/00 – Plena Voice Alarm Keypad

The Bosch LBB1957/00 Plena Voice Alarm Keypad is an advanced zone extension keypad designed for use with the Bosch LBB1956/00 Plena Voice Alarm System Call Station. It adds seven additional zone selection keys, enhancing system flexibility and control for professional public address and voice alarm installations. Engineered for durability, functionality, and ease of integration, this keypad is ideal for airports, shopping centers, schools, offices, and public buildings where reliable voice communication is essential.

Enhanced Zone Control and Flexibility

Each LBB1956/00 call station supports six zone selections by default. When connected with the LBB1957/00 keypad, users gain control of seven extra zones or zone groups, significantly expanding coverage. For larger systems, up to eight keypads can be daisy-chained to a single call station, providing efficient and scalable operation across multiple zones.

This makes the Bosch LBB1957/00 the perfect solution for complex installations requiring precise control and monitoring of multiple areas.

User-Friendly Controls and Indicators

The Bosch LBB1957/00 Plena Keypad features a simple, intuitive interface designed for quick operation and real-time zone feedback.
Controls and indicators include:

• Seven illuminated zone selection keys for easy identification and activation

• Seven zone selection LEDs to display the active zones at a glance

• Eight DIP switches for configuration and address settings

These visual indicators ensure operators can manage zones confidently during both routine announcements and emergency situations.

Rugged Design and Flexible Mounting

Built with a stable metal base, the LBB1957/00 offers excellent durability for daily professional use. It can be used as a tabletop device or flush-mounted into desktops, making it suitable for both operational control rooms and fixed installation environments. Its sleek, compact design ensures a clean, professional appearance in any setup.

Reliable Connectivity and Integration

The LBB1957/00 keypad includes:

• Two RJ45 jacks for straightforward system connection and daisy-chaining

• 24 V DC input for reliable power supply

• Dedicated keypad connector for quick installation

This ensures seamless integration with Bosch’s Plena Voice Alarm System, providing secure and stable communication across all zones.

Key Features:

• Adds seven additional zone selections

• Supports up to eight keypads per call station

• LED indicators for active zone display

• Rugged metal base for stability

• Tabletop or flush-mount installation options

• Simple RJ45 connectivity for fast setup

The Bosch LBB1957/00 Plena Voice Alarm Keypad delivers efficient, reliable zone expansion with intuitive operation and professional-grade construction—making it an essential component for scalable voice alarm and public address systems.