96 en | Technical data Plena Voice Alarm System
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual Bosch Security Systems B.V.
Loudspeaker outputs
Overrides
Trigger inputs / 24 V DC out
External power amplifiers
10.1.3 Call Station
Electrical
Performance
Type: Screw terminals
Number of zones: 6
Number of loudspeaker lines: 12 (2 per zone)
Signal-to-noise ratio (flat at max. volume): > 85 dB
Line voltage: 100 V
Type: 3-wire or 4-wire on screw terminals
Voltage: 24 V(DC) for 4-wire, if selected
Current: Total 0.8 A
Trigger voltage: < 24 V
Type: Momentary or latching
Normally opened (default) or normally closed
Emergency input supervision: 10 kΩ + 10 kΩ series and parallel resistors
24 V DC out: 24 V(DC), max. 0.8 A
Type: 3-pin XLR and screw terminals
Router output/Amplifier input: 1 V
Router input/Amplifier output: 100 V
Voltage range: 24 V(DC), +20%/-10%, supplied by the
Controller or external power source
Current consumption: < 30 mA
Nominal sensitivity: 85 dB SPL (gain preset 0 dB)
Nominal output level: 355 mV
Maximum input sound level: 110 dB SPL
Gain preset: +6/0/-15 dB
Limiter threshold: 2 V
Compression ratio limiter: 20:1
Distortion: < 0.6% (nominal input)
< 5% (maximum input)
Equivalent input noise level: 25 dB SPL(A)
Frequency response: 100 Hz - 16 kHz
Speech filter: - 3 dB @ 500 Hz, high-pass, 6 dB/oct
Output impedance: 200 Ω
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