User's Manual
277
The higher the value is, the easier it is to trigger an alarm. But at the
same time, the false alarm may occur. The default value is
recommended.
You can set intensity change threshold. The smaller the value is, the
higher the sensitivity is.
Define a period during which the function is active.
The alarm device (such as lights, sirens, etc.) is connected to the alarm
output port. When an alarm occurs, the NVR device transmits the alarm
information to the alarm device.
When the alarm ends, the alarm extended for a period of time. The time
range is from 0 seconds to 300 seconds.
Check box to enable a pop-up message in your local host PC.
Select the check box. When an alarm occurs, the NVR device uploads
an alarm signal to the network (including the alarm center).
● This function is for some series products only.
● You need to set the alarm center first. For details, see "4.12.13
Alarm Center".
Select the check box. When an alarm occurs, the NVR device sends an
email to the set mailbox to notify the user.
You need to set the email first. For details, see "4.12.10 Email".
Select the check box and select the needed recording channel (support
multiple choices). When an alarm occurs, the NVR device activates the
channel for recording.
You need to enable intelligent recording and auto recording first. For
details, see "4.1.4.6 Schedule".
Select the check box and click Setting to select the channel and PTZ
action. When an alarm occurs, the NVR device associates the channel
to perform the corresponding PTZ action. For example, activate the
PTZ in channel one to turn to the preset point X.
● Tripwire alarm supports to activate PTZ preset point only.
● You need to set the corresponding PTZ actions first, see "4.4.4
Calling PTZ Functions".
At the end of the alarm, the recording extends for a period of time. The
time range is from 10 seconds to 300 seconds.
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