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QSTD2400 Series DVR User’s Manual
d according to the saving
time and DVR recordi s vi e. are the
d d g
Video
Format
Resolution
Rate Total
(FPS)
ality
ate
e
h)
Appendix C Calculating Recording Capacity
Users can calculate th of hard drive needee size
ettings. The DVR
s for 200 fps 8
ng
ifferent settin
uses fixed
-channel DVR.
deo bit rat Below
etails for
Frame
Video Qu
Bit R
(kbps)
Used
Spac
(MB/
Highest 640 281
Higher 512 225
Medium 384 168.7
Lower 256 112.5
PAL CIF 25
Lowest 128 56
Highest 640 281
Higher 512 225
Medium 384 168.7
Lower 256 112.5
NTSC CIF 30
Lowest 128 56
The calculation formula is:
frame
record continuously for a month. Below n:
24(hours/day) X30(days)
els)
= 648(GB)
all two 320GB SATA HDDs, it can almost record for one
month.
For 4-channel DVR:
24(hours/day) X30(days)
els)
Total Recording capacity =Used space per hour (MB/h) (coverage rate of
hard drive) × recording time (hour) ×channel
numbers
For instance, if you use NTSC cameras, set resolution to CIF, video quality to Lower,
rate to 240 fps for enabling a total of 8 channels and you want the unit to
is the calculatio
Total Recoding capacity =112.5(mb/h) X
X8(chann
= 648000(MB)
In this case if you would inst
Total Recoding capacity =112.5(mb/h) X
X4(chann
65