Bosch LBB 1957-00 Plena Voice Alarm Keypad

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Bosch LBB 1957-00 Plena Voice Alarm Keypad Specification

Channels
6-zone selection

Use
Public address and voice alarm

Alarm
Supports voice alarm control

Product Type
Voice Alarm Keypad

Material
High-impact ABS plastic

Power Supply
24 V DC, 400 mA via LBB 1956/00 remote control unit

Dimension (L*W*H)
52 x 250 x 150 mm

Color
Charcoal

Weight
0.9 kg

About Bosch LBB 1957-00 Plena Voice Alarm Keypad

The keypad is an extension to the LBB 1956/00 PlenaVoice Alarm Call Station that adds seven additional zone select keys. It has the same stable metal base as the callstation. In addition to tabletop use, the special designallows it to be neatly flush-mounted in desktops.

Functions :

Each call station supports six zone selections. Connectingone of these units, adds seven zones or zone groups thatcan be selected. Up to eight keypads can be added to anLBB 1956/00 call station. LEDs on the keypad indicate theactive zones.

Seven zone selection keys

LED indications for zone selection

Up to eight keypads can be connected together

EN 54 16 and EN 60849 compliant

Efficient Zone Management

With the ability to manage up to six zones, the LBB 1957-00 simplifies distributing voice alarms or public address messages across distinct areas. Expansion options enable this keypad to scale with evolving facility needs, ensuring clear communication and control.

Reliable Performance in Diverse Environments

Designed to operate within a wide temperature and humidity range, the keypad is suitable for use in various locations-from auditoriums to industrial sites. The high-impact ABS plastic housing provides durability, while desk or wall mounting offers installation flexibility.

Comprehensive Control Features

Operators benefit from tactile mechanical keys, intuitive LED indicators, status monitoring, and dedicated emergency activation. With secure RS485 communication up to 1000 meters and EN 54-16 certification, the keypad ensures safe, reliable operation in critical public safety systems.

FAQ's of Bosch LBB 1957-00 Plena Voice Alarm Keypad:

Q: How do I select and control zones using the Bosch LBB 1957-00 keypad?

A: You can select individual zones or initiate an all-call by pressing the mechanical keys corresponding to each zone, with LED indicators confirming your selection. The keypad supports control of up to six zones, and you can expand this capacity with additional modules.

Q: What environments are suitable for installing the LBB 1957-00 Plena Voice Alarm Keypad?

A: This keypad is designed for both indoor and semi-protected environments, withstanding temperatures from -10C to +55C during operation, and up to 95% relative humidity, making it ideal for use in public buildings, transportation hubs, and institutional facilities.

Q: Where can the LBB 1957-00 be mounted, and how is it powered?

A: The keypad offers flexible desk or wall mounting options. It receives 24 V DC, 400 mA power from the compatible LBB 1956/00 remote control unit, ensuring integration and centralized power supply in your system.

Q: What is the process for installing and connecting the keypad to a sound system?

A: Installation involves mounting the keypad (on a wall or desk), connecting it to your system using the RS485 interface, and configuring it for your desired zones. The cable length can extend up to 1000 meters, allowing for remote positioning as part of larger systems.

Q: What are the benefits of using this keypad in a public address or voice alarm system?

A: The LBB 1957-00 provides quick, reliable zone selection and emergency control, contributing to the efficient management of announcements or alarms. Its LED feedback, robust construction, and compliance with EN 54-16 enhance operational safety and system dependability.

Q: When should the emergency button be used?

A: The emergency button is specifically for situations where immediate voice alarm activation is necessary, ensuring rapid notification to all selected zones or an all-call broadcast during emergencies.

Q: What makes this keypad compliant with safety standards?

A: The product is certified to EN 54-16, the European standard for voice alarm control and indicating equipment, which ensures it meets stringent requirements for reliability and performance in life safety applications.

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