DVR systems DVR31xxH Series - Manual (Page 41)

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Figure 4-19
Figure 4-20
Figure 4-21
4.5.3 Video Loss
In Figure 4-17, select video loss from the type list. You can see the interface is shown as in
X311H311H311H
Figure 4-22. This function allows you to be informed when video loss phenomenon
occurred. You can enable alarm output channel and then enable show message function.
Tips:
You can enable preset activation operation when video loss occurs.
Please refer to chapter 4.5.2 motion detection for detailed information.