LBB 1956/00 Plena

LBB 1956/00 Plena Voice Alarm Call Station

Increase our public address system with the Bosch LBB 1956/00 Plena Voice Alarm Call Station. This stylish and reliable call station offers six-zone selection, all-call functionality, and clear audio for efficient emergency communication. Ideal for schools, offices, and public spaces, this Bosch Plena Voice Alarm system component ensures safety and security.

The LBB 1956/00 is a high-quality call station designed for professional use, featuring:

• Elegant Build: A sturdy metal base, a flexible microphone stem, and a unidirectional condenser microphone.
• Versatile Installation: Suitable for tabletop use or flush-mounted neatly into desktops.
• Zone Communication: Supports calls to up to six zones or all zones simultaneously in the Plena Voice Alarm System.

LBB 1956/00 Functions

This call station features selectable gain, a selectable speech filter, and a limiter for improved intelligibility. The call station has a balanced line level output, making it possible to position it up to 1000 meters from the controller, using CAT‐5 extension cables. With shielded cable, the call station can also be used in an EMC level 5 (heavy industry) environment. DIP switches at the base of the call station select different microphone gain levels, the call station ID, and the speech filter. A service accessible rotary control provides microphone level attenuation. LEDs on the call station show which zones have been selected. Three additional LEDs give visible feedback on the active state of the microphone and the system.

Each call station supports six zone selections. The number of selectable zones or zone groups can be increased by connecting call station keypads (LBB 1957/00). Up to eight keypads can be added with each keypad adding seven zone or zone-group keys.

Green flashing means standby (chime is sounding). Green indicates microphone active. Amber indicates that the system has detected a fault, and red indicates that the system is in the emergency state. Controls and indicators
• Four status LEDs
• PTT‐key
• PTT status LED
• Six zone selection keys
• Six zone selection LEDs
• All‐call key
• Eight DIP switches