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The NDVR prepares 4 types of directories and system margin
area in Primary SDHC and Secondary SDHC slot.
Directory of NORMAL File Area
• This NORMAL folder is includes all non-alarm and event video
file.
• Allocate 84% in primary SD Memory, 95% in secondary SD
memory.
• The NDVR stores the all-time 60 seconds’ movie files in
NORMAL movie area.
• When movie files reached full capacity of NORMAL movie file
area in one SD memory, The NDVR starts to store NORMAL
movie files in NORMAL movie file area of another SD memory.
When it reached full capacity of NORMAL movie area in both
SD Memories, The NDVR should overwrite all-time movie files
in this area (delete the oldest file and store the new file).
• The EMERGENCY Event file is store in this area with
separated folder name use ‘EMERGENCY’
Directory of EVENT File Area
• Allocate 10% in primary SD memory.
• The NDVR stores the accident 30 seconds movie file in
EVENT file area.
Section 1
Usage of Memory
Secondary Slot
Primary Slot
Primary memory Secondary memory
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