Bosch Plena LBB 1925 Installation And User Instruction page 50

PLENA SYSTEM PRE-AMPLIFIER AND CALL STATIONS
Control
RS232 (9-pin D-sub)
Baud rate
Trigger inputs (Screw)
Activation
Relays
Priority relay contacts
Zone output relay contacts
DC supply output voltage
Environmental conditions
Operating temperature range
Storage temperature range
Relative humidity
General
EMC emission
EMC immunity
Dimensions
Weight
19" mounting brackets included
All-call call station LBB 1941
Electrical
Power supply
Voltage range
Current consumption
Performance
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
Environmental conditions
Operating temperature range
Storage temperature range
Relative humidity<95%
General
EMC emission
EMC immunity
Dimensions
Weight
Cable length
19K2
contact closure
100 V, 2 A
100 V, 2 A
24 V, 250 mA max
-10 to +55°C
-40 to +70°C
<95%
acc. to EN 55103-1
acc. to EN 55103-2
100 x 430 x 270 mm (19" wide, 2U high)
approx. 5 kg
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
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)
40