Bộ điều khiển trung tâm cho hệ thống báo động bằng giọng nói Plena BOSCH LBB-1990/00

Mains power supply

Voltage

230/115VAC, ±15%, 50/60 Hz

Current inrush

8A

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)

Mic/line input

1 x

Connector

XLR, 6.3 mm jack

Sensitivity

1 mV (mic), 1 V (line)

Impedance

>1 KΩ (mic); >5 KΩ (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 KΩ

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

<1KΩ

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

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

Messages

Data format

WAV-file, 16-bit PCM, mono

Supported sample rates (fs)

24 / 22.05 / 16 / 12 / 11.025 / 8 KHz

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

Mechanical

Mounting

19 inch rack

Color

Charcoal

Dimensions

144 x 430 x 370 mm

Weight

Approx. 21.17 kg