Step 1: Enter NVR Username and Password.
Step 2: Click “Login”.

Step 3: Click “ALARM”.

Step 4: Click “Video Detection”.

Step 5: Click “Video Loss”.

Step 6: Select cameras.
Step 7: Click to enable video loss.

Step 8: Click “Setting”.

Step 9: Set a schedule for video loss.
Step 10: Click “Apply”.

Step 11: Click the check box to enable record channel.
Step 12: Click “Apply”.