User Manual

UM DS-90xxHUHI-F8/N User Manual 041717NA 55
Figure 70, More Settings of Record Parameters
• Pre-record: The time you set to record before the scheduled time or event. For example,
when an alarm triggered the recording at 10:00, if you set the pre-record time as 5
seconds, the camera records it 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 the recording ends at 11:00, if you set the post-record time as 5
seconds, it records till 11:00:05.
• Expired Time: The time for keeping the record files in the HDDs, once exceeded, the files
will be deleted. The files will be saved permanently if the value is set as 0. The actual
keeping time for the files should be determined by the capacity of the HDDs.
• Redundant Record: Saves the record in the redundant HDD.
• Record Audio: Enable this feature to record the sound and disable it to record the video
without sound.
• Video Stream: Main stream, Sub-stream and Dual-stream are selectable for recording.
When you select sub-stream, you can record for a longer time with the same storage
space.
NOTE: The Redundant Record option is available only when the HDD mode
is
Group.
Redundant HDD is required for the redundant record function
(network drive).
For network cameras, the Main Stream (Event) parameters are not
editable.
16. Click Apply to save the settings.
17. Optionally, click Copy to copy the settings to other analog channels if needed.
NOTE: The analog signal inputs can be recognized automatically and mixed
randomly. So you can copy the same settings of the selected analog
camera to any other analog channel.