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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 153
8.8.9 Audio line inputs 8.8.10 Audio microphone inputs
Connector (rear side):
6 pole header (type ETB47-06-2-G1 (ECE)) for
removable screw connector
Preferred cable:
Twisted pair, shielded
Maximum input signal level:
6 dBV
Input range:
-12 to 0 dB with respect to maximum input level
Input sensitivity setting:
Software
Frequency response:
-3 dB points at 50 Hz and 20 kHz (tolerance ± 1 dB)
Input impedance:
22 kΩ
Signal/Noise ratio:
> 87 dB (rms unweigthed)
Common mode rejection ratio:
> 40 dB at 1 kHz
Input cross-talk:
< -80 dB at 1 kHz
<-70 dB at 10 kHz at -11 dBV input level
Distortion:
< 0.1%
Connector (rear side):
6 pole header (type ETB47-06-2-G1 (ECE)) for
removable screw connector
Preferred cable:
Twisted pair, shielded
Nominal input signal level:
-57 dBV
Input range:
-7 to 8 dB with respect to nominal input level
Input sensitivity setting:
Software
Frequency response:
100 Hz to 16 kHz
Input impedance:
136 0 Ω
Signal/Noise ratio:
> 60 dB (rms unweigthed at -60 dBV)
Common mode rejection ratio:
> 40 dB at 1 kHz
Input cross-talk:
< -80 dB at 1 kHz at -60 dBV input level
< -70 dB at 10 kHz at -60 dBV input level
Distortion:
< 0.1%
Phantom supply:
12 V ± 1 V (max. 15 mA)