Bosch LBB 1956/00 Plena Voice Alarm Call Station metal base design, a flexible microphone stem and a unidirectional condenser microphone. It can make calls to selected zones (one to six and all-call), 110 dB SPL, Frequency response 100 Hz to 16 kHz.
This combination does not exist.
Bosch LBB1956/00 Plena Voice Alarm Call Station
Six zone selection keys, all-call key and momentary PTT-key for calls
Nominal sensitivity : 85 dB SPL (gain preset 0 dB), Input sound level : 110 dB SPL
Frequency response : 100 Hz to 16 kHz, Speech filter : -3dB at 315 Hz
Support Any wave file Chimes with 7 Priorities
Voltage range 24 VDC supplied by LBB 1990/00 or VDC/VAC external power supply
Four status LEDs, PTT-key, PTT status LED, Six zone selection keys, Six zone selection LEDs, All-call key, Eight DIP switches, Rotary volume control
Technical Specifications
Power Supply
Voltage range
24 VDC supplied by LBB 1990/00
(or 18 to 24 VDC or VAC external power supply)
Current consumption
<30 mA (plus <15 mA per keypad)
Performance
Nominal sensitivity
85 dB SPL (gain preset 0 dB)
Nominal output level
700 mV
Input sound level (max)
110 dB SPL
Gain preset
+6 / 0 / -15 dB
Limiter threshold
2 V
Compression ratio limiter
1:20
Distortion
<0.6% (maximum input)
Input noise level (equiv.)
25 dB SPLA
Frequency response
100 Hz to 16 kHz
Speech filter
-3dB at 315 Hz, high-pass, 6 dB/oct
Output impedance
200 ohm
Selections
Chimes
Any wave file
Priorities
7
Base dimensions
40 x 100 x 235 mm
(1.57 x 3.97 x 9.25 in)
Weight
Approx. 1 kg
Mounting
Standalone
Color
Charcoal with silver
Stem length with mic
390 mm (15.35 in)
Cable length
5 m (16.4 ft)
Operating temperature
-10 ºC to +45 ºC (14 ºF to +113 ºF)
Storage temperature
-40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity
<95%
