D-Link DCS-1000 Manual page 63

Motion Detection (List View)
In the list view for the camera, a red circle preceeding the camera name indicates
that the camera detected motion and is recording. The Camera will continue to
record for 10 seconds after it has stopped detecting motion, then will stop
recording. A new .AVI file will appear in your recording folder that you specified
each time the camera is triggered to record. In the Camera menu, a check mark
in front of Enable Motion indicates that the camera is detecting motion and is
recording. You can manually disable motion detection by clicking on Stop and
clicking on Enable Motion, which will remove the check mark.
To re-enable motion detection, simply click on Enable Motion and a check
mark will appear to indicate that the camera is now set to record when it detects
motion.
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