LevelOne NVR-0432, User Manual

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I/O Settings
This function allows users to manage camera’s digital input and output
ports right from the recorder. You can setup the recorder to receive
triggers from a particular camera’s input port and trigger a device,
such as an alarm that is connected to the recorder or camera’s output
port. Cameras that do not have built-in digital input/output port can
also be configured to pair with the recorder’s DI/DO ports.
1. For cameras that come with physical digital input ports, their ports
will be listed in the far left drop-down menu.
2. Pick the desired channel for I/O mapping, and then select the
camera’s input port from the drop-down menu.
3. Select the trigger condition from the “Condition” drop-down menu.
*The recorder does not control camera's input or output ports in a way
to let you pair recorder itself with a camera's input or output port for
event receiving or triggering.
*The recorder only acts as a medium for pairing up input/output ports
between cameras and the recorder.
*Only connected cameras will be displayed in the list.