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Dahua HCVR8204A-S3 - Page 359

Dahua HCVR8204A-S3
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349
Figure 5-114
Step 2 Set parameters.
Parameter
Function
Channel
Select the channel number first. Select “all” if you want to set for the
whole channels.
Pre-record
It is to specify record duration. There are two ways for you to set.
Time length: It is to pack according to time. The value ranges from 1 to
60 minutes. Default value is 60 minutes.
File length: It is to pack according to file length. The default setup is
1024M. The value ranges from 128M to 2048M.
Redundancy
System supports redundancy backup function. Highlight Redundancy
button to activate this function. Please note, before enable this
function, please set at least one HDD as redundant. Please note this
function is null if there is only one HDD.
Note
Go to the record control to set auto or manual record, device begins
recording. The redundant HDD is to backup the video file on the
read-write HDD. The redundant HDD does not backup image.
ANR
It is to save video to the SD card of the camera in case the network
connection fails. After the network connection resumed, the system
can get the video from the SD card and there is no risk of record loss.
Device only upload the specified period record if the disconnection
time is longer than the value you set here.

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