Note: Normally, the range of the Pre-trigger buffer is 1-20 frames. This range will change
accordingly if the MJPEG frame rate on the Video frame rate page (see "Video frame rate" on
page 75) is 6 or slower.
With the Post-trigger function, users can set a certain amount of images to be uploaded after
the triggering of the alarm input.
Important: Uploading images by FTP or e-mail is only possible if MJPEG output is
configured. If only H.264 streaming is enabled, no images will be sent.
Continue image upload
If selected you can choose to upload the triggered images for a certain time or to keep
uploading until the trigger is off.
● Upload for n sec
The number of frames per second (fps) selected in the Image Frequence list is sent to the
FTP Server for the number of seconds specified in the Upload for n sec box. The range is 1
to 9999 seconds.
● Upload during trigger active
The number of frames per second (fps) selected in the Image Frequence list is sent to the
FTP Server until the trigger is no longer active. The range is 1 to 15 frames.
PTZ function
Assign a camera function - Preset, Sequence, Autopan, or Cruise - and specify a Preset Point/
Sequence Line/Autopan Path/Cruise Line for the camera to perform at an alarm occurrence.
For a description of these functions, see PTZ (see "PTZ&IMAGE" on page 77).
If the selected function is Preset, the dwell time must be specified in the Dwell time box.
When the alarm is triggered, the camera will go to the selected Preset Point and stay there for
the user-defined period of time. As for other function modes, the camera will keep executing
the specified function. To stop this action, simply change the camera status.
Note: The dwell time can only be adjusted when Preset is selected as the alarm action.
When the dwell time has expired, the camera will go back to its trigger position and recheck
the alarm pin status.
Record video clip
Select this option and the alarm-triggered recording will be saved to your microSD card. The
Pre-trigger buffer function allows you to check what occurrence caused the trigger. The Pre-
trigger buffer time range is from 1 to 3 seconds.
You can choose from the following actions:
● Upload for n sec
The image stream is recorded to the SD card for the number of seconds (setting range
from 1 to 99999 seconds) specified in the Upload for n sec text box with a pre-trigger
buffer of the number of seconds specified in the Pre-trigger buffer text box.
● Upload during trigger active
The image stream is recorded to the SD card with a pre-trigger buffer of the number of
seconds specified in the Pre-trigger buffer text box until the trigger is no longer active.
Note: Ensure that local recording to the microSD card is activated. For more information,
see Recording ( on page 59).
Send message by E-mail
A message is sent by email, as configured on the Mail page, when an alarm is triggered. For
more information on configuring messages to be sent via SMTP, see Mail ( on page 41).
System settings
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