Download User Manual - Y3k.com
Download User Manual - Y3k.com
Download User Manual - Y3k.com
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X4D1/X8D1/X16D1 <strong>User</strong> <strong>Manual</strong><br />
Appendix B Calculate Recording Capacity<br />
The table below shows an approximate hard disk size requirements based upon “Resolution” and “Bit Rate”:<br />
Video<br />
Format<br />
Resolution<br />
Total Frame<br />
Rate (FPS)<br />
PAL D1 25<br />
NTSC D1 30<br />
Video Quality<br />
Bit Rate<br />
(kbps)<br />
Used Space<br />
(MB/h)<br />
Highest 2M 915<br />
Higher 1.5M 700<br />
Medium 1M 465<br />
Lower 768K 297<br />
Lowest 512K 241<br />
Highest 2M 910<br />
Higher 1.5M 712<br />
Medium 1M 468<br />
Lower 768K 297<br />
Lowest 512K 241<br />
The formula used for the calculating the recording capacity, is detailed below as follows:<br />
[Used space per hour (MB/h)]* [HDD Coverage Rate]*[Recording Time (hours)]* [Number of Channels]<br />
For example: PAL cameras, D1 resolution, “Higher” video quality, 25 fps, 4 channels and continuousrecording for a month.<br />
Total Recording capacity = [700 (mb/h)]*[24(hours/day) * 30(days)]* [4(channels)] = 2016000(MB) [approx2GB]<br />
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