Appendix B: Calculate Recording Capacity; Appendix C: Compatible Devices - Provision ISR IPSeries User Manual

Appendix B: Calculate Recording Capacity
You can calculate the size of hard disk according to the storage time and NVR recording settings. The formula
is as follows in full frame rate condition. Used space per hour (MB/h) = Bitrate(kbps) ÷ 8 × 3600 ÷ 1024. The
below are the details at different settings.
Resolution Frame Rate
3MP
1080P
720P
1080P
3MP
960H
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 sets resolution to1080P, frame rate to 15fps, bitrate to 4M and enables total 4
channels. He wants the unit to record continuously in a month. Below is the calculation:
Total Recoding capacity =900 (mb/h) X 24(hours/day) X30(days) X4 (channels)= 2592000 (MB)=2531.25(GB)
Therefore, customers just install one SATA HDDs with 3TB, it can almost record for one month.
Appendix C: Compatible Devices
AHD DVR User Manual
Bit Rate (kbps)
12M
8Mb
30fps (NTSC) 7Mb
5Mb
4Mb
6Mb
4Mb
30fps (NTSC)
15fps (NTSC) 2Mb
15fps (NTSC)
1Mb
256Kb
2Mb
30fps (NTSC) 1.5Mb
512Kb
73
Used Space(MB/h)
5400
3600
3150
2250
1800
2700
1800
900
450
113
900
675
225