BOSCH LBB 1990/00 Plena Voice Alarm Controller แบบ 240 วัตต์ 6 Zone 2 BOSCH LBB 1990/00 Controller จากแบรนด์ BOSCH

BOSCH LBB 1990/00

Controller

Mains power supply

Voltage	230/115VAC, ±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 volme/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 for0 / -3 / -6 / -9 / -12 / -15 dB120 / 60 / 30 / 15 / 8 /4 W

Output Contacts

Connector Type	MC 1,5/14-ST-3,5
Rating	100 V, 2A, 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 kHz333 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 and transport 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)