Many Wisenet cameras offers alarm inputs and outputs, these are TTL outputs and are not volt free, a transistorised relay is required to obtain a volt free output.
A separate power supply is needed to power the transistorised relay.
- In the below example we are using a 12V transistorised relay connected to the alarm out (orange) wire and the ground (black) wire of the camera.
Note - The jumper must be set to L for proper operation.
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