LT Security LTD2432MD - Manual (Page 105)

DVR User Manual
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Appendix B Calculate Recording Capacity
Users can calculate the size of hard disk according to the saving time and DVR recording settings. The DVR uses fixed video bit
rate. The below are the details at different settings.
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 CIF, video quality to Lowest, frame rate to 25 fps for enabling total
16 channels. He wants the unit to record continuously in a month. Below is the calculation: Total Recoding capacity =112.5 (mb/h)
X 24(hours/day) X30(days) X16(channels) = 1296000(MB) = 1296(GB)
Therefore, customers just install one SATA HDD with 1000GB plus one SATA HDD with 320GB, it can almost record for one month.
Resolution Frame Rate Video Quality Bit Rate(kbps) Used Space（MB/h）
D1
30（NTSC）
25（PAL）
highest 2048 915
Higher 1536 700
Medium 1024 465
Low 768 297
Lower 512 241
CIF
30（NTSC）
25（PAL）
Highest 1024 450
Higher 768 337.5
Medium 512 225
Low 512 225
Lower 384 168.75
Lowest 256 112.5