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4.5 Alarm Buffer
You can set the Pre-alarm image and audio (the image and audio before the alarm
detection) and the Post - alarm image and audio. These can be set when Alarm sending
FTP client setting menu or Image memory setting menu is set to On, and besides when
Use alarm buffer is selected.

4.5.1 Setting

Alarm buffer：To activate the Alarm buffer function, select On. The basic setting options
are displayed below. When you do not use the Alarm output function, select Off.
Recording capacity
Pre-alarm period：Display the maximum recording capacity of image/audio before
the alarm detection.
Post-alarm period：Display the maximum recording capacity of image/audio after the
alarm detection.
Recording time
Set the recording time for the Pre-alarm image/audio and Post alarm image/audio.
Pre alarm period：Type it with recording time of the image/audio before the alarm
detection.