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3.16.3 GPI Trigger
Use the GPI Trigger menu under the Record Setup tab to enable recording video from specified cameras
when triggered by an external alarm(GPI) connected to the system. For instance, you may want to record
video from a camera installed at your front door when the door lock is opened. In this case, connected an
alarm module (not provided ) to lock and set the front door camera to start recording.
3.16.4 Pre-alarm recording
Use the pre-alarm menu under the record setup tab to determine how many frames are record before an
alarm event occurs. Each camera can be set separately and you can record up to 300 frames.
