AVer SF1311H-DV - Manual (Page 51)

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hours.
3. Trigger by : You do not need to choose it, because this will be triggered every minute
4. Action : Voice Alert
Record
User can choose the type of record file for event or schedule application.
 Record File Type: Choose AVI or JPEG file format.
 Record File Prefix: Define the prefix of recorded filename.
 JPEG Picture Numbers: Define the picture numbers of JPEG to be sent out.
 Pre Trigger Duration :
Time of pre-record when alarm triggered.
 Best Effort Duration : Time of post-record when alarm triggered.
 Max File Size : The maximum video file size for recording.