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Camera - Alarm Out

Applies to all Network Cameras with Alarm Out. 

The Alarm Output connection on modern Network Cameras is not a contact closure but a voltage level change.

Below, please find a diagram of the circuit needed to create a relay operated closure.

Alarm_Out_Diagram.jpg

A easier solution would be to utilize a  ready made relay module available in many different versions similar to the ones below pictured

SainSmart 4-Channel Relay Module1_channel_relay_Module_Board.jpgblobid0.jpg

Besides the relay module, a DC power-supply may be needed

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