Bosch VJT-X20XF-E Installation And Operating Manual page 54

54 en | Configuration using a Web browser
5.
6.
Standard recording
Here you can select the mode for standard recordings.
If you select Continuous, the recording proceeds continuously. If the maximum memory
capacity is reached, older recordings will automatically be overwritten. If you select the Pre-
alarm option, the unit uses a special recording mode for optimal usage of storage capacity: As
soon as a time window for alarm recording begins, recording takes place continuously on one
segment that corresponds in size to a complete alarm sequence (pre- and post-alarm time).
This segment functions in a similar manner to a ring buffer and is overwritten until an alarm is
actually triggered. Recording occurs on the segment only for the duration of the preset post-
alarm time and a new segment is used subsequently in the same manner.
If you select Off, no automatic recording takes place.
CAUTION!
You can specify limitations for overwriting older recordings in Continuous mode by
configuring the retention time.
Further topics:
–
Standard profile
Select the encoder profile to be used for recording. The recording profile can differ from the
setting for the stream on the Encoder Profile page and is only used during an active
recording.
Further topics:
–
Pre-alarm time
You can select the required pre-alarm time from the list field. With pre-alarm times between 1
and 5 seconds the unit's RAM is used instead of the CF card or the network. This helps to
reduce the loading of the CF card and increases the service life of the card. On the other hand
the network load is reduced in case of not using a CF card but external iSCSI storage.
Post-alarm time
You can select the required post-alarm time from the list field.
Post-alarm profile
You can select the encoder profile to be used for recording during the post-alarm time.
Select Standard profile to inherit the Standard profile setting from above.
Further topics:
–
Alarm input / Analysis alarm / Video loss alarm
Here you can select the alarm sensor that is to trigger a recording.
The alarm inputs are configured and activated on the Alarm Inputs page. The numbering of
the checkboxes for the alarm inputs corresponds to the labeling of the alarm inputs on the
device.
The analysis alarm is configured and activated on the VCA page.
The audio alarm is configured and activated on the Audio Alarm page.
DOC | V5.51 | 2012.03
Click the Copy Settings button if you want to copy the currently visible settings to other
profiles. A new window will open and you can select the profiles in which you want to
copy the settings.
For each profile, click the Set button to save the settings in the unit.
Section 5.27 Advanced Mode: Retention Time, page 56
Section 5.21 Advanced Mode: Encoder Profile, page 44
Section 5.21 Advanced Mode: Encoder Profile, page 44
Installation and Operating Manual
VideoJet XF E
Bosch Sicherheitssysteme GmbH