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Voice Alarm Controller

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Bosch LBB 1990/00 Plena Voice Alarm Controller

Bosch LBB 1990/00 Plena Voice Alarm Controller
 
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Approx. Rs 1.18 Lakh / PieceGet Latest Price

Product Details:
Current Inrush8 A
Max Power Consumption600 VA
Battery Voltage24 VDC, +15% / -15%
Current Max14 A
Output Power240 W / 360 W(rms/maximum)
Power Reduction on Backup Power-1 dB
Frequency Response60 Hz to 18 kHz (+1/-3 dB at -10 dB ref. rated output)
DistortionLess than 1% at rated output power, 1 kHz
WeightApprox. 21.17 kg
Mounting19'' rack
Model NumberLBB 1990
BrandBosch
Dimensions144 x 430 x 370 mm (19" wide, 3U high)
ColorCharcoal
Voltage230/115 VAC, +/-15%, 50/60 Hz

The Plena Voice Alarm Controller unit is the heart of the 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 cable. A built-in 240 W amplifier provides the power for the emergency call channel and BGM. Additional Plena 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 Plena family of public address equipment and Bosch EVAC-compliantConfiguration software is provided on the CD included with the unit. The CD also includes many useful programs, such as MP3-ripping software, a samplerate converter, various audio and visual tools, and free, MP3-coded music.The amplifier output is also available as a separate output on 100 V and 70 V. A separate 100 V call-only output provides addressing for an area where BGM is not required but where priority announcements are. Six configurable volume-override output contacts are available for overriding local volume controls during priority calls. Both four-wire and three-wire schemes are supported. An LED meter monitors the output.Up to 255 messages can be stored in the internal 16 MB flash ROM, without a need for battery backup. Each message can have any length within the total available capacity. Messages and configurations are uploaded from a PC via USB 2 into the memory, after which the unit operates without a PC connection. The standard WAV-format is used for the messages, and sample rates of 8 kHz up to 24 kHz with 16-bit word length (linear PCM) are supported. This gives up to 17 minutes of recording time with CD-quality signal-tonoise ratio.The unit has 12 contact trigger inputs for business and emergency (EMG) calls. Each can be configured for a message consisting of a sequence of up to eight wave files. In this way some wave files may be used in various combinations with other messages, optimizing flexibility and the amount of storage space used. Multiple messages can be merged to form one integrated message. A zone selection, together with this sequence can be configured for each trigger input.
Features:
  • 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
  • 12 business and emergency control inputs

Functions:
  • 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.

Controls and indicators:Front:
  • LED power meter
  • 13 system fault LEDs
  • Two fault state buttons
  • Two emergency state buttons

Additional Information:
  • Item Code: LBB1990
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