PLANET NVR-3280 - Manual (Page 75)

32-Channel Rack Mount Network Video Recorder with 8-bay Hard Disks
NVR-3280
75
The “recording buffer” allows user to define “pre-alarm” and “post-alarm” time for event recordings. The
“pre-alarm” time sets the NVR to record in advance when an event is triggered. The “post-alarm” time
sets the NVR to continue recording for a period of time after an event trigger is finished.
* The “Pre-alarm” function only
Works when the “Continuous”
Recording is also activated.
Recording frame rate allows you to set different frame rates for different types of recording instead of
recording at one frame rate only. Use the drop-down menu and select one of the pre-defined frame rates
for a particular recording type.
Users can also set to keep a previous number of days of recording data by enabling the option below.
This is quite often used in application such as banking which certain countries requires to always keep a
minimum previous number of days of recording data.