Dahua DHI-NVR5208-4KS2 User Manual page 191

Parameter Description
The alarm device (such as lights, sirens, etc.) is connected to the alarm output
Alarm Out 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
Latch
from 0 seconds to 300 seconds.
Select the check box. When an alarm occurs, the NVR device uploads an alarm
signal to the network (including the alarm center).
Alarm
Upload This function is for some series products only.

 You need to set the alarm center first. For details, see "4.12.9 Alarm
Centre."
Select the check box. When an alarm occurs, the NVR device sends an email to
the set mailbox to notify the user.
Send Email
You need to set the email first. For details, see "4.12.6 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.
Record
Channel
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.
PTZ
Activation
 Tripwire alarm supports to activate PTZ preset point only.
You need to set the corresponding PTZ actions first, see "4.4.3 Configuring

PTZ Functions."
At the end of the alarm, the recording extends for a period of time. The time
Delay
range is from 10 seconds to 300 seconds.
Select the check box and select the channel for tour. When an alarm occurs, the
local interface of the NVR device displays the selected channel screen.
Tour
 You need to set the time interval and mode for tour first, see "4.16.2 Tour."
After the tour is over, the preview interface is restored to the screen split

mode before the tour.
Log Select the check box, the NVR device records the alarm information in the log
when an alarm occurs.
Local Basic Operation 180