Bosch LBB1956/00 Bàn gọi 6 vùng
Stylish six‑zone call station for the Plena Voice Alarm System
Six zone selection keys, all-call key and momentary PTT-key for calls
Selectable gain, speech filter, limiter, and output level for improved intelligibility
LED indications for zone selection, fault, and emergency state
Call station extension provides seven additional zone and zone group keys
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)
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
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)