# Alarm Setup

In the main menu, from Setting->Event->Alarm

* Alarm in: Here is for you to select channel number.
* 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.
  * 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: 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.
* PTZ activation: When an alarm occurred, system can activate the PTZ operation.
The PTZ activation lasts an anti-dither period.
* 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 detects another alarm signal,
it can generate an alarm since the anti-dither time is out.
* Alarm output: The number here is the device alarm output port.
ou can select the corresponding ports(s) so that system can activate the corresponding alarm device(s)
when an alarm occurred.
* 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.
* Show message:
System can pop up a message to alarm you in the local host screen if you enabled this function.
* 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.
* Send email:
    System can send out the alarm signal via the email to alert you when 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.
* Record channel: you can select proper channel to record alarm video (Multiple choices).
    * 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.
      System record all the time no matter there is an alarm or not if you select Manual mode.
    * 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 type:Regular/MD/Alarm/MD&Alarm.
      Please note, you can not select the MD&Alarm and MD(or Alarm) at the same time.
    * Now you can go to the Encode interface to select the alarm record and set the encode parameter
      (Main Menu->Setting->Encode).
    * 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.
* Tour: Here you can enable tour function when an alarm occurs.
    System supports 1/8-window tour.
    Please note the tour setup here has higher priority than the tour setup you set in
    the Display interface.
    Once there two tours are both enabled, system can enable the alarm tour as you set
    here when an alarm occurred.
    If there is no alarm, system implements the tour setup in the Display interface.
* Snapshot: You can enable this function to snapshot image when an alarm occurs.
* Buzzer: Highlight the icon to enable this function. The buzzer beeps when an alarm occurs

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