Bosch LBB1956/00 Bàn gọi 6 vùng
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- 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)