Audio Connectors - Bosch NBC-455 Installation And Operation Manual

Dinion IP Camera
5.4

Audio connectors

Figure 5.4 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.
Bosch Security Systems
Line
GND
Installation and Operation Manual
Installation | en
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24 VA C
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AR18-10-B006 | v1.1 | 2010.06
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