Dahua NVR41 series

User's Manual
253
Parameter
Description
Anti-Dither
Indicates the time taken from the end of motion detection to the
end of alarm linkage action. The range is 0 to 600 seconds.
Alarm-out Port
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.
Post-Alarm
When the alarm ends, the alarm extended for a period of time.
The time range is from 0 seconds to 300 seconds.
Show Message
Check box to enable a pop-up message in your local host PC.
Report Alarm
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".
Send Email
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".
Record Channel
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".
Post-Record
At the end of the alarm, the recording extends for a period of
time. The time range is from 10 seconds to 300 seconds.
PTZ Linkage
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".