Dahua DVR0X04AH-VD-E, User Manual

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Network input alarm: It is the alarm signal from the network.
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Enable: Please you need to highlight this button to enable current function.
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Type: Normal open or normal close.
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Trigger: Here is for you to set activation mode. There are two options: High/low.
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Alarm name: You can input customized name here.
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Overlay: Please highlight the box here to enable this function. It can overlay alarm information on
the video screen when an alarm occurred.
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PTZ activation: When an alarm occurred, system can activate the PTZ operation such as preset x.
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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 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 buzzer, 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 det ects
another alarm signal, it can generate an alarm since the anti -dither time is out.
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Alarm output: The number here is the device alarm output port. You can select the corresponding
ports(s) so that system can activate the corresponding alarm device(s) wh en an alarm occurred.
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Latch: When the anti-dither time ended, the channel alarm you select in the alarm output may last
the specified period. The value ranges from 1 to 300 seconds. This function is not for other alarm
activation operations. The latch is still valid even you disable the alarm event function directly.
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Show message: System can pop up a message to alarm you in the local host screen if you enabled
this function.
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Alarm upload: System can upload the alarm signal to the network (including alarm centre and
the WEB) if you enabled current function. System only uploads the alarm channel status. You
can go to the WEB and then go to the Alarm interface to set alarm event and alarm operation.
Please go to the Network interface to set alarm centre information.
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Send email: System can send out the alarm signal via the email to alert you when an alarm occurs.
Once you enable the snap function, system can also send out an image as the attachment. Please
go to the Main Menu->Setting ->Network->Email interface to set.
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Record channel: you can select proper channel to record alarm video (Multiple choices).
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You need to set alarm record mode as Schedule in Record interface (Main Menu ->Advanced-
>Record). Please note the manual record has the highest priority. Sys tem record all the time no
matter there is an alarm or not if you select Manual mode.
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Now you can go to the Schedule interface (Main Menu->Setting->Schedule) to set the record
type, corresponding channel number, week and date. You can select the record ty pe:
Regular/Alarm.
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Now you can go to the Encode interface to select the alarm record and set the encode
parameter (Main Menu->Setting->Encode).
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Finally, you can set the alarm input as the local alarm and then select the record channel. The
select channel begins alarm record when an alarm occurred. Please note system begins the
alarm record instead of the MD record if the local alarm and MD event occurred at the same
time.
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Snapshot: You can enable this function to snapshoot image when an alarm occurs.