Provision-ISR NVR-16400 Instrukcja Użytkownika Pobierz pdf (Strona 70)

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)

1080P

15fps (NTSC)

12M

2700

2025

1575

1350

900

720P

30fps (NTSC)

2700

1800

900

450

256

113

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 3 TB, it can almost record for one

month.

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Provision-ISR NVR-16400 Instrukcja Użytkownika Strona 70