COP-USA DVR2704XE-L - Manual (Page 96)

DVR User Manual
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Appendix B Calculate Recording Capacity
Users can calculate the required size of hard disk according to the total recording duration and DVR recording settings. The DVR uses
fixed video bit rate. The below are the details at different settings for CBR.
Resolution
Frame Rate
Totally(FPS)
Video Quality Bit Rate (kbps) Used Space(MB/h)
1080P
6(PAL)/
7(NTSC)
Highest 12M
1350
Higher 9M
1013
Medium 7M
788
Low 6M
675
Lower 4M
450
Lowest 1.5M
169
The calculation format is: Total Recording capacity =Used space per hour (MB/h) (coverage rate of hard disk) × recording time
(hour) ×channel numbers
For instance, one customer uses PAL cameras, set resolution to 1080P, video quality to Lowest, frame rate to 6 fps for enabling total
4channels. He wants the unit to record continuously in a month. Below is the calculation:
Total Recoding capacity =169 (mb/h) X 24(hours/day) X30(days) X4(channels)= 486720 (MB)
≈475(GB)
Therefore, customers need to install one SATA HDDs with 500GB for one month record.