Plena Public Address and Voice Alarm. LBB1990/00 Controller. Heart of the Plena Voice Alarm System. EN 54‑16 certified and EN 60849 compliant. Message manager and 240 W amplifier build‑in.

Description 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. Principles compiler design alfred v aho jeffrey d ullman pdf reader free. 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. 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 controller has two BGM source inputs and a mic/ line input with configurable priority, speech filter, phantom power and selectable VOX activation. A total of 16 priority levels can be specified for microphone, call stations and trigger inputs for optimum system flexibility.The powerful 240 W output section has six transformer-isolated 100 V constant-voltage outputs for driving 100 V loudspeakers in six separate zones.The 100 V-technique reduces line losses on longer distances and provides easy parallel connection of multiple loudspeakers. All zones may be individually selected from the front panel, and the BGM output level in each zone can be individually set in six steps. The controller supports A/B wiring.The configuration software is provided on from the software download section of the Plena Voice Alarm System controller.

The software package also includes many useful programs, such as; MP3-ripping software, a samplerateconverter, various audio and visual tools, and free, MP3-coded music.

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• Expand the Plena Voice Alarm System with six zones • EN 54???16 certified • 12 additional input contacts • Six volume override output contacts • Supervision within the Plena Voice Alarm System • plena voice alarm router The LBB 1992/00 Voice Alarm Router is an expansion unit that can add six zones and 12 input contacts to the Plena Voice Alarm System. It can use the built???in amplifier on the LBB 1990/00 Plena Voice Alarm System Controller, and provides inputs and outputs for one or two amplifiers in a multi???amplifier one or two???channel system. It provides dual channel operation for calls and BGM simultaneously to a maximum of six different zones, using two amplifiers. Additionally, single channel operation is possible with only one amplifier.

Multiple routers can also share one amplifier, including the internal amplifier on the controller unit. It is possible to use any number of amplifiers from one up to the number of routers used. The controller supports A/B wiring.