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

AHD DVR User Manual
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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 BitRate(kbps) UsedSpace(MB/h)
3MP
1080P
30fps(NTSC)
12M 5400
8Mb 3600
7Mb 3150
5Mb 2250
4Mb 1800
720P
1080P
3MP
30fps(NTSC)
15fps(NTSC)
15fps(NTSC)
6Mb 2700
4Mb 1800
2Mb 900
1Mb 450
256Kb 113
960H 30fps(NTSC)
2Mb 900
1.5Mb 675
512Kb 225
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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)X3 0 (days)X4(channels)=2592000(MB)=2531.25(GB)
Therefore,customersjustins talloneSATAHDDswith3TB,itcanalmostrecordforonemonth.
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AppendixC:CompatibleDevices