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1. Recommend high speed hard disk above 7200 rpm.
2. The capacity of the single hard disk is above 32GB at least, each HDD can max support 3TB.
3. The selection and calculation for capacity:
Total capacity= channels number * record time needed (hours) * capacity per hour (M/hour)
For example: If you choose the recording bit rate type for CBR 2Mb (refer to 4.3 for bit rate types), the HDD Capacity /hour/channel=bit rate(Mbps) * 3600s=2Mbps*3600s=7200Mb,
because 1MB=8Mb, so the data capacity of each channel/hour when choose CBR 2Mb is 7200Mb/8=900MB.
3600s=1800MBb=225MB (1MB=8Mb). Due to the various factors, the calculated result is for reference only. Some slight differences or small errors might exist in the calculation.
Audio recording capacity is about 30MB per camera per hour. In order to save HDD space, we suggest closing the audio except users mandatory require audio recording.
Notes: When HDD is full, the default set will let system overwrite the earliest 1 day recorded files, please consider this situation when calculate the HDD capacity.
4. The attachments, such as data cable, power line, and hard disk are prepared well.
Notes: This series DVR don’t support the hot swap, please install the HDD and connect the data line first then plug the electricity in.
3.1.1 Attentions on Installing Hard Disk
3.2 Package Checking
After open the box, please check the DVR whether was distorted or damaged. If there have, please do not use it and contact your suppliers in time. Meanwhile, please check all
accessories of the DVR; do read the attached information carefully. ( Notes: Accessories as for the packing list)
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Video/audio/RS485 devices can’t be plug or draw when the power is on, or else the equipment will be easily damaged.
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Use the power on/off button on the front panel instead of direct shut off the power directly when turn off the Net DVR, so that the hard disk won’t be damaged.
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After installation, machine can automatically detect hard disk. If an unformatted hard disk is detected, system will give off information whether to format the disk (the dvr support
format HDD, don’t need operate in PC).
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Warning: Don’t try to plug in HDD to PC if not specialized persons, the following operation of HDD on PC will cause HDD can’t be recognized and need format when plug in
at next time:1,modify or edit the file name. 2,open the file and edit the content. 3,copy back the data which copied out before to HDD again. 4,Some third party browser software will
also change HDD physical storage locationin the background.
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Don’t open the cover before power off.
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In order to ensure the integrity of the video data, if found that HDD was damaged please promptly replaced (log has the record of HDD faulty).
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