LBB1990/00
Bosch LBB 1990/00 Plena Voice Alarm Controller fully supervised main control unit for Voice Alarm applications, Built-in 240 W amplifier. VAS Controller, two BGM source inputs and a mic/line input with configurable priority, Six‑zone outputs, Message manager, 12 business and emergency control inputs.
VAS Controller
Bosch LBB1990/00 Plena Voice Alarm Controller
Zone Outputs
The powerful 240 W output section has six transformer-isolated 100 V constant-voltage outputs for driving 100V loudspeakers in six separate zones.
Background Music Source
The controller has two BGM source inputs and a mic/ line input with configurable priority, speech filter, phantom power and selectable VOX activation.
Additional Features
Expandable to 120 zones, Up to 8 call stations can be connected, 16 priority levels
Individual BGM control for each zone, Standard and emergency control in and outputs, Additional Plena Amplifiers can be added to provide two-channel operation, Fully complies with IEC60849 and all national equivalents
Built-in Amplifier
Built-in 240 W amplifier provides the power for the emergency call channel & BGM.
Message Manager
Up to 255 messages (.WAV format) can be stored in the internal 16 MB flash ROM, without a need for battery backup.
Performance
Frequency response : 60 Hz to 18 kHz (+1/-3 dB at -10 dB ref. rated output)
Distortion <1% at rated output power, 1 kHz, Bass control, Treble control
Controls and Indicators
LED power meter, 13 system fault LEDs, Two emergency state buttons, 6x EMG zone status LED pairs & Select button, 6x BGM zone select LEDs & select buttons, 6x BGM zone volume control knobs, 3x knobs for BGM volume, treble, and bass levels, All-call button, EMG state button, Alert message button
Technical Specifications
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Mains Power Supply |
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Voltage |
230 / 115 VAC, ±15%, 50/60 Hz |
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Current inrush |
8 A |
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Max power consumption |
600 VA |
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Battery Power Supply |
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Voltage |
24 VDC, +15% / -15% |
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Current max |
14 A |
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Performance |
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Output power (rms / maximum) |
240 W / 360 W |
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Power reduction on backup power |
-1 dB |
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Frequency response |
60 Hz to 18 kHz (+1/-3 dB at -10 dB ref. rated output) |
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Distortion |
<1% at rated output power, 1 kHz |
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Bass control |
-8/+8 dB at 100 Hz |
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Treble control |
-8/+8 dB at 10 kHz |
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Mic/line Input |
1 x |
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Connector |
XLR, 6.3 mm jack |
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Sensitivity |
1 mV (mic), 1 V (line) |
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Impedance |
>1 kohm (mic); >5 kohm (line) |
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S/N (flat at max volume) |
>63 dB (mic); >70 dB (line) |
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S/N (flat at min volume/muted) |
>75 dB |
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CMRR |
>40 dB (50 Hz – 20 kHz) |
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Headroom |
>25 dB |
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Speech filter |
-3 dB at 315 Hz, high-pass, 6 dB/oct |
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Phantom power supply |
12 V (mic mode only) |
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VOX trigger level |
-20 dB (100 µV mic / 100 mV line) or via input contact |
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Limiter |
Automatic |
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Line input |
(BGM and PC call station) |
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Connector |
Cinch, stereo converted to mono, unbalanced |
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Sensitivity |
200 mV |
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Impedance |
22 kohm |
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S/N (flat at max volume) |
>70 dB |
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S/N (flat at min volume/ muted) |
>75 dB |
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Headroom |
>25 dB |
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Trigger Inputs |
12 x (6 EMG, 6 business) |
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Connectors |
MC1,5 / 14-ST-3,5 |
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Activation |
Programmable |
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Supervision |
On EMG inputs, programmable |
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Supervision method |
Series / parallel resistor |
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100 V Input |
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Connector |
MSTB 2,5 /16-ST |
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Power handling capacity |
1000 W |
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Tape output |
1 x |
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Connector |
Cinch, 2 x mono |
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Nominal level |
350 mV |
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Impedance |
<1 kohm |
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Loudspeaker Outputs |
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Connectors |
MSTB 2,5 /16-ST, floating |
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100 V output |
700 W rated per zone |
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Volume override types |
3-wire, 4-wire (24 V), 4-wire failsafe |
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BGM zone output Attenuation |
70 / 50 /35 /25 / 18 / 13 V for 0 / -3 / -6 / -9 / -12 / -15 dB 120 / 60 / 30 / 15 / 8 /4 W |
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Output Contacts |
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Connector Type |
MC 1,5/14-ST-3,5 |
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Rating |
250 V, 7A, voltage free |
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Emergency active relay |
NO / COM / NC |
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Call active relay |
NO / COM / NC |
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Fault relay |
NO / COM / NC normally energized (failsafe) |
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General purpose relays |
NO / COM |
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Mains operation |
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Max power |
550 W |
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-3dB |
440 W |
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-6dB |
340 W |
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Pilot tone |
136 W |
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Idle |
60 W |
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24 VDC operation |
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Max power |
14.0 A (336 W) |
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-3 dB |
12.5 A (300 W) |
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-6 dB |
9.5 A (228 W) |
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Pilot tone |
2.5 A (60 W) |
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Idle |
0.9 A (22 W) |
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Data format |
WAV-file, 16-bit PCM, mono |
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Supported sample rates (fs) |
24 / 22.05 / 16 / 12 / 11.025 / 8 kHz |
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Frequency response |
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at fs=24kHz |
100 Hz to 11 kHz (+1/-3 dB) |
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at fs=22.05kHz |
100 Hz to 10 kHz (+1/-3 dB ) |
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at fs=16kHz |
100 Hz to 7.3 kHz (+1/-3 dB ) |
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at fs=12kHz |
100 Hz to 5.5 kHz (+1/-3 dB) |
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at fs=11.025kHz |
100 Hz to 5 kHz (+1/-3 dB) |
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at fs=8kHz |
100 Hz to 3.6 kHz (+1/-3 dB) |
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Distortion |
<0.1% at 1 kHz |
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S/N (flat at max volume) |
>80 dB |
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Memory capacity |
16 MB Flash ROM |
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Recording / playback time |
1000 seconds at fs = 8 kHz 333 seconds at fs = 24 kHz |
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Number of messages |
255 max |
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Supervision Flash ROM |
Continuous checksum control |
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Supervision DAC |
1 Hz pilot tone |
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Data retention time |
>10 years |
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Dimensions (H x W x D) |
144 x 430 x 370 mm (19" wide, 3U high) |
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Weight |
Approx. 21.17 kg |
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Mounting |
19”rack |
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Color |
Charcoal |
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Operating temperature |
-10 ºC to +55 ºC (14 ºF to +131 ºF) |
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Storage temperature |
-40 ºC to +70 ºC (-40 ºF to +158 ºF) |
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Relative humidity |
<95% |
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Acoustic noise level of fan |
<48 dB SPL at 1 m (max output) |