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DinionHD 720p IP Camera Installation | en 29
Bosch Security Systems Installation and Operation Manual AR18-10-B013 | v1.52 | 2011.06
5.6 Audio connectors
Figure 5.7 Audio connectors
Connect audio devices to the Audio In and Audio Out
connectors.
The unit has full-duplex mono audio. The two-way
communication can be used to connect 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 9 kOhm typical; 5.5 Vpp
maximum input voltage.
Audio output: Line output level (not suitable for direct speaker
connection); impedance 16 Ohm minimum; 3 Vpp maximum
output voltage.
Wiring: Shielded audio connection cable is advised. Observe
maximum cable lengths for audio line input and output levels.
1
2
3
4
5
6
E
T
H
P
o
E
ALARM
AUDIO
IN
AU
D
IO OUT
DATA
1
2
3
4
5
6
–
+
12 VDC
24 VAC
SD
GND
Line