Retention Time - Bosch NDN-498V03-21P Installation And Operation Manual

FlexiDome2X IP Camera
Stream
Select the data stream to be used for standard recordings. (You
can select the data stream for alarm recordings separately and
independently of this setting.)
Alarm recording
Select the Pre-alarm time from the list box.
Select the Post-alarm time from the list box.
Select the Alarm stream to use for alarm recording. The
encoding interval for alarm recording can be selected from the
predefined profiles.
Alarm triggers
Select the alarm type (Alarm input/ Motion/Audio alarm /
Video loss alarm) that is to trigger a recording. Select the
Virtual alarm sensors that are to trigger a recording, via RCP+
commands or alarm scripts, for example.
9.7.3

Retention Time

Specify the retention times for recordings. If the available
memory capacity of a medium has been used, older recordings
are only overwritten if the retention time entered here has
expired.
Make sure that the retention time corresponds with the
available memory capacity. A rule of thumb for the memory
requirement is as follows: 1 GB per hour retention time with
4CIF for complete frame rate and high image quality.
Enter the required retention time in hours or days for each
recording. Recording 1 corresponds to Stream 1, Recording 2
corresponds to Stream 2.
Bosch Security Systems Installation and Operation Manual
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AR18-10-B006 | v1.1 | 2010.06
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