Alarm Setup - Dahua NVR4108-P User Manual

Please highlight icon
After all the setups please click OK button, system goes back to the previous menu.

4.11.3 Alarm Setup

In the main menu, from Setting->Event->Alarm, you can see alarm setup interface.

Alarm in: Here is for you to select channel number.
In the main menu, from Setting->Event->Alarm, you can see alarm setup interface. See Figure 4-89.
There are four alarm types. See Figure 4-89 to Figure 4-92.

Local alarm: The alarm signal system detects from the alarm input port.

Network alarm: It is the alarm signal from the network.

IPC external alarm: It is the on-off alarm signal from the front-end device and can activate the local
HNVR.

IPC offline alarm: Once you select this item, system can generate an alarm when the front-end IPC
disconnects with the local HNVR. The alarm can activate record, PTZ, snap and etc. The alarm can
last until the IPC and the HNVR connection resumes.
Important

If it is your first time to boot up the device, the disconnection status of the front-end
network camera will not be regarded as offline. After one successfully connection, all
the disconnection events will be regarded as IPC offline event.

When IPC offline alarm occurs, the record and snapshot function of digital channel is
null.

Enable: Please you need to highlight this button to enable current function.

Type: normal open or normal close.

Period: Click set button, you can see an interface is shown as in Figure 4-94. There are two ways for
you to set periods. There are max 6 periods in one day. There are four record types: regular, motion
detection (MD), Alarm, MD & alarm.

In Figure 4-94, Select icon
Now the icon is shown as

In Figure 4-94. Click button
in Figure 4-95. There are four record types: regular, motion detection (MD), Alarm, MD & alarm.

PTZ activation: When an alarm occurred, system can activate the PTZ operation. The PTZ activation
lasts an anti-dither period. See Figure 4-93.

Anti-dither: Here you can set anti-dither time. The value ranges from 5 to 600s. The anti-dither time
refers to the alarm signal lasts time. It can be seem as the alarm signa l activation stays such as the
buzzer, tour, PTZ activation, snapshot, channel record. The stay time here does not include the latch
time. During the alarm process, the alarm signal can begin an anti -dither time if system detects the
local alarm again. The screen prompt, alarm upload, email and etc will not be activated. For example,
if you set the anti-dither time as 10 second, you can see the each activation may last 10s if the local
alarm is activated. During the process, if system detects another local alarm signal at the fifth
second, the buzzer, tour, PTZ
screen prompt, alarm upload, email will not be activated again. After 10s, if system detects another
alarm signal, it can generate an alarm since the anti-dither time is out.
to select the corresponding alarm output.
of several dates, all checked items can be edited together.
.
Click
after one date or a holiday, you can see an interface shown as
activation, snapshot, record channel will begin another 10s while the
to delete a record type from one period.
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