Dahua Technology LE-A - Manual (Page 42)

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Figure 4-21
4.5.4 Camera Masking
When someone viciously masks lens, the system can alert you to guarantee video continuity.
Camera masking interface is shown as in
X312H312H312H316H
Figure 4-22
X
.
Tips:
You can enable preset/tour/pattern activation operation when video loss occurs.
Please refer to chapter 4.5.2 motion detection for detail information.
Note:
In Detect interface, copy/paste function is only valid for the same type, which means you can
not copy a channel setup in video loss mode to camera masking mode.
Figure 4-22
4.6 Alarm Setup and Alarm Activation
Before operation, please make sure you have properly connected alarm devices such as
buzzer.