Audio - Bosch NBN-80122 Installation Manual

22 en | Connection
6.4

Audio

GND
Connect audio devices to the Audio In and Audio Out
connectors.
The unit has full-duplex mono audio for two-way communication
between a speaker or door intercom system. The audio input
signal is transmitted in sync. with the video signal.
Audio input: Line input level (not suitable for direct microphone
signal); impedance 18 kOhm typical; 1 Vrms maximum input
voltage.
Audio output: Line output level (not suitable for direct speaker
connection); impedance 1.5 kOhm minimum; 0.85 Vrms
maximum output voltage.
Wiring: Use shielded audio connection cable with advised
maximum cable lengths for audio line input and output levels.
2015.04 | v2.0 | AM18-Q0688
Line
4 5 6 | 4 5 6
D A
A L
T A
A R
M
1 2 3 | 1 2 3
- +
CVBS
Input Output
DINION IP ultra 8000 MP
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T
H
-
P
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