All-Call Call Station Lbb 1941; Electrical; Performance; Environmental Conditions - Bosch LBB 1925 Installation And Operating Manual

Plena System Pre-amplifier | Installation and Operating Manual |

9.2 All-call call station LBB 1941

9.2.1 Electrical

Power supply
Voltage range
Current consumption

9.2.2Performance

Nominal sensitivity
Nominal output level
Maximum input sound level
Gain preset
Limiter threshold
Compression ratio limiter
Distortion
Equivalent input noise level
Frequency response
Speech filter
Output impedance

9.2.3Environmental conditions

Operating temperature range
Storage temperature range
Relative humidity

9.2.4General

EMC emission
EMC immunity
Dimensions
Weight
Cable length
Bosch Security Systems | 2003-09 | 3922 988 99483en
Technical data
18 to 24 V (24 V supplied by LBB1925/10)
<30 mA
85dBSPL (gain preset 0dB)
700mV
110 dB SPL
+6/0/-15 dB
2 V
1:20
<0.6% (maximum input)
25 dBA SPL
100 Hz to 16 kHz
-3 dB at 315 Hz, high-pass, 6 dB/oct
200 Ohm
-10 to +55°C
-40 to +70°C
<95%
acc. to EN 55103-1
acc. to EN 55103-2
40 x 100 x 235 mm (base)
390 mm stem length (with microphone)
approx. 1 kg
5 m (may be extended up to 500 m
using CAT-5 style shielded cable)
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