Bosch DCN Next Generation Installation & User's Instructions page 177

DCN Next Generation | Installation and User Instructions | Flush-mounted Devices
Typically, you will connect DCN-FMIC Microphone
Connection Panels (refer to chapter 19) to the audio
inputs.
table 21. 1 1: Audio inputs
Number of connections:
2x DIN-8p-262° sockets
Location:
Left side
Cable:
Shielded cable
Audio levels:
Refer to appendix A
Impedance:
Selectable:
• Asymmetric mic.: > 4 kΩ
• Symmetrical dynamic mic.: > 2 x 33 kΩ
Symmetrical phantom mic.: > 2 x 680 Ω
•
Phantom supply:
12 V(DC) ± 10%, max. 15 mA
Signal-to-noise ratio:
> 90 dB
CMRR:
> 85 dBA @ max. level
Crosstalk between inputs:
> 40 dB
Bosch Security Systems | 2007-02 | 9922 141 70525
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