User's Manual

Table Of Contents
HDD Capacity Calculation 210
HDD Capacity Calculation
In the first installation of the HDD, check whether the HDD is already installed. To install IDE
HDD, pay attention to the jumper of the HDD.
HDD capacity calculation formula:
Total capacity (M) = Channel number × Demand time length (hour) × HDD capacity occupied
per hour (M/hour)
Recording time calculation formula:
Recording time (hour) = HDD total capacity (M)
HDD capacity occupied per hour (M/hour) × Channel number
The Device adopts MPEG4/H.264 compression technology, which features a large dynamic
range. Therefore, when calculating HDD capacity, you should accord to the bit rate to evaluate
the file size generated per hour from each channel.