- Heart of the Plena Voice Alarm System
- EN 54‑16 certified and EN 60849 compliant
- Message manager and 240 W amplifier build‑in
- Six‑zone outputs
- 6 emergency and 6 business triggers
The LBB 1990/00 Voice Alarm Controller unit is the
heart of the Plena Voice Alarm System. It is the basis
of the Plena Voice Alarm System, and has all the
essential functionality for compliance with the
EN 54‑16 and EN 60849 standards, including full
system supervision, loudspeaker line impedance
supervision, a supervised emergency microphone on
the front panel and a supervised message manager.
The messages can be merged to allow even more
flexible use of pre‑recorded announcements and
evacuation messages. The controller can be used as a
stand‑alone system with up to six zones, or expanded
to up to 120 zones using additional six‑zone routers.
Up to eight call stations can be connected.
Interconnections are made using standard RJ45
connectors and shielded CAT-5 cable.
A built‑in 240 W amplifier provides the power for the
emergency call channel and BGM. Additional amplifiers
can be added to provide two‑channel operation. All
amplifiers are supervised. The audio output uses
standard analog audio 100 V line switching for full
compatibility with the product family of public address
equipment and Bosch EVAC-compliant loudspeakers.
The system is configured using DIP switches for basic
functionality and a PC for more advanced functions.