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.

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    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

    Mains Power Supply

     

    Voltage

    230 / 115 VAC, ±15%, 50/60 Hz

     

    Current inrush

    8 A

     

    Max power consumption

    600 VA

     

    Battery Power Supply

     

    Voltage

    24 VDC, +15% / -15%

     

    Current max

    14 A

     

    Performance

     

    Output power (rms / maximum)

    240 W / 360 W

     

    Power reduction on backup power

    -1 dB

     

    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

    -8/+8 dB at 100 Hz

     

    Treble control

    -8/+8 dB at 10 kHz

     

    Mic/line Input

    1 x

     

    Connector

    XLR, 6.3 mm jack

     

    Sensitivity

    1 mV (mic), 1 V (line)

     

    Impedance

    >1 kohm (mic); >5 kohm (line)

     

    S/N (flat at max volume)

    >63 dB (mic); >70 dB (line)

     

    S/N (flat at min volume/muted)

    >75 dB

     

    CMRR

    >40 dB (50 Hz – 20 kHz)

     

    Headroom

    >25 dB

     

    Speech filter

    -3 dB at 315 Hz, high-pass, 6 dB/oct

     

    Phantom power supply

    12 V (mic mode only)

     

    VOX trigger level

    -20 dB (100 µV mic / 100 mV line) or via input contact

     

     

    Limiter

    Automatic

     

    Line input

    (BGM and PC call station)

     

    Connector

    Cinch, stereo converted to mono, unbalanced

     

    Sensitivity

    200 mV

     

    Impedance

    22 kohm

     

    S/N (flat at max volume)

    >70 dB

     

    S/N (flat at min volume/ muted)

    >75 dB

     

    Headroom

    >25 dB

     

    Trigger Inputs

    12 x (6 EMG, 6 business)

     

    Connectors

    MC1,5 / 14-ST-3,5

     

    Activation

    Programmable

     

    Supervision

    On EMG inputs, programmable

     

    Supervision method

    Series / parallel resistor

     

    100 V Input

     

    Connector

    MSTB 2,5 /16-ST

     

    Power handling capacity

    1000 W

     

    Tape output

    1 x

     

    Connector

    Cinch, 2 x mono

     

    Nominal level

    350 mV

     

    Impedance

    <1 kohm

     

    Loudspeaker Outputs

     

    Connectors

    MSTB 2,5 /16-ST, floating

     

    100 V output

    700 W rated per zone

     

    Volume override types

    3-wire, 4-wire (24 V), 4-wire failsafe

     

    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

     

    Output Contacts

     

    Connector Type

    MC 1,5/14-ST-3,5

     

    Rating

    250 V, 7A, voltage free

     

    Emergency active relay

    NO / COM / NC

     

    Call active relay

    NO / COM / NC

     

    Fault relay

    NO / COM / NC normally energized (failsafe)

     

    General purpose relays

    NO / COM

    Mains operation

    Max power

    550 W

    -3dB

    440 W

     

    -6dB

    340 W

     

    Pilot tone

    136 W

     

    Idle

    60 W

     

    24 VDC operation

     

    Max power

    14.0 A (336 W)

     

    -3 dB

    12.5 A (300 W)

     

    -6 dB

    9.5 A (228 W)

     

    Pilot tone

    2.5 A (60 W)

     

    Idle

    0.9 A (22 W)

     

    Data format

    WAV-file, 16-bit PCM, mono

    Supported sample rates (fs)

    24 / 22.05 / 16 / 12 / 11.025 /

    8 kHz

    Frequency response

    at fs=24kHz

    100 Hz to 11 kHz (+1/-3 dB)

    at fs=22.05kHz

    100 Hz to 10 kHz (+1/-3 dB )

    at fs=16kHz

    100 Hz to 7.3 kHz (+1/-3 dB )

    at fs=12kHz

    100 Hz to 5.5 kHz (+1/-3 dB)

    at fs=11.025kHz

    100 Hz to 5 kHz (+1/-3 dB)

    at fs=8kHz

    100 Hz to 3.6 kHz (+1/-3 dB)

    Distortion

    <0.1% at 1 kHz

    S/N (flat at max volume)

    >80 dB

    Memory capacity

    16 MB Flash ROM

    Recording / playback time

    1000 seconds at fs = 8 kHz 333 seconds at fs = 24 kHz

    Number of messages

    255 max

    Supervision Flash ROM

    Continuous checksum control

    Supervision DAC

    1 Hz pilot tone

    Data retention time

    >10 years

    Dimensions (H x W x D)

    144 x 430 x 370 mm (19" wide, 3U high)

    Weight

    Approx. 21.17 kg

    Mounting

    19”rack

    Color

    Charcoal

    Operating temperature

    -10 ºC to +55 ºC (14 ºF to +131 ºF)

    Storage temperature

    -40 ºC to +70 ºC (-40 ºF to +158 ºF)

    Relative humidity

    <95%

    Acoustic noise level of fan

    <48 dB SPL at 1 m (max output)

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