DVR systems NVR38xx Series - Manual (Page 92)

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Overlay
(Cover area)
Here you can privacy mask the specified video in the monitor video.
One channel max supports 4 privacy mask zones.
The privacy mask includes two options: Never/monitor. Never: It means do not
enable privacy mask function. Monitor: the privacy mask zone can not be
viewed in monitor mode.
Time display
You can enable this function so that system overlays time information in video
window.
Channel
display
You can enable this function so that system overlays channel information in
video window.
8.3.2.3 Schedule
Here you can set different periods for various days. There are max six periods in one day. See
Figure 8-20.
Figure 8-20 Schedule
Figure 8-21 Schedule Time