AXIS 231D+/232D+ Network Dome Camera User's Manual

AXIS 231D+/232D+ - Event Configuration31Pre-trigger and Post-trigger buffersThis function is useful for checking what happened immediately before and after a trigger- for example, 10 seconds before and after a door has been opened.Go to Event Types > Add Triggered... > WhenTriggered... and check the Upload imagescheckbox to view more options.Select upload type - Select if you want theimages to be uploaded by FTP, HTTP, or to besent via email.Include pre-trigger buffer - images storedinternally in the server from the timeimmediately preceding the trigger. Check thebox to enable the pre-trigger buffer, enter thedesired length of time and specify the requiredimage frequency.Include post-trigger buffer - contains imagesfrom the time immediately after the trigger.Configure as for pre-trigger.Notes: • Pre-trigger and Post-trigger buffers will be lost if the connection to the event server fails.• Maximum length of the pre-/post-buffer depends on the video image size and selected frame rate.• If the pre- or post-buffer is too large for the AXIS 282/AXIS 282A's internal memory, the frame rate isreduced and no images will be uploaded. If this occurs, an entry will be created in the unit's log file.Continue image upload (unbuffered) - enable the upload of images for a fixed length oftime. Specify the length of time for the uploaded recording, in seconds, minutes or hours,or for as long as the trigger is active. Finally, set the desired image frequency to themaximum (the maximum available) or to a specified frame rate. The frame rate will be thebest possible, but might not be as high as specified, especially if uploading via a slowconnection.