Dahua HDCVI series, User Manual

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
IPC external alarm: It is the on-off alarm signal from the front-end device and can
activate the local HDVR.

IPC offline alarm: Once you select this item, system can generate an alarm when the
front-end IPC disconnects with the local HDVR. The alarm can activate record, PTZ,
snap and etc. The alarm can last until the IPC and the HDVR 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.

Alarm in: Here is for you to select channel number.

Type: normal open or normal close.

PTZ activation: Here you can set PTZ movement when alarm occurs. Such as go to
preset, tour& pa
ttern when there is an alarm. Click “select” button, you can see an
interface is shown as in Figure 4-129.

Period: Click set button, you can see an interface is shown as in Figure 4-130. 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 4-130, Select icon of several dates, all checked items can be
edited together. Now the icon is shown as
.
Click to delete a record
type from one period.

In Figure 4-130. Click button after one date or a holiday, you can see an
interface shown as in Figure 4-131. There are four record types: regular, motion
detection (MD), Alarm, MD & alarm.

Anti-dither: Here you can set anti-dither time. 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 signal 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 b uzzer,
tour, PTZ activation, snapshot, record channel will begin another 10s while the
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.

Show message: System can pop up a message to alarm you in the local host screen if
you enabled this function.