Network Video Recorder User Manual
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Pre-record: The time you set to record before the scheduled time or event. For example,
when an alarm triggers the recording at 10:00, and if you set the pre-record time as 5
seconds, the camera records at 9:59:55.
Post-record: The time you set to record after the event or the scheduled time. For
example, when an alarm triggered recording ends at 11:00, and if you set the post-record
time as 5 seconds, it records till 11:00:05.
Expired Time: The expired time is period for a recorded file to be kept in the HDD. When
the deadline is reached, the file will be deleted. If you set the expired time to 0, the file
will not be deleted. The actual keeping time for the file should be determined by the
capacity of the HDD.
Redundant Record/Capture: By enabling redundant record or capture you save the record
and captured picture in the redundant HDD. See Chapter Configuring Redundant
Recording.
Record Audio: Check the checkbox to enable or disable audio recording.
Video Stream: Main stream and sub-stream are selectable for recording. When you select
sub-stream, you can record for a longer time with the same storage space.
3) Click Apply to save the settings.
You can enable the ANR (Automatic Network Replenishment) function via the web browser
(Configuration > Storage > Schedule Settings > Advanced) to save the video files in the IP camera
when the network is disconnected, and synchronize the files to the NVR when the network is
resumed.
The redundant record/capture is used when you want to save the record files or captured
pictures in the redundant HDD. You must configure the redundant HDD in HDD settings. For
detailed information, see Chapter 12.3.2 .
The parameters of Main Stream (Event) are read-only.
Step 3 Parameters Settings for Sub-stream
1) Enter the Sub-stream tab page.
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