Operation Manual

48
can work, but you need note, if the NVR begins to work, all datas in your
hard disk will loss.
5. Whether can playback when recording?
Answer: Yes.
6. Whether can remove a part of video recordings of hard disk of NVR?
Answer: Considering the security of document, you can’t remove a part of
video recording, if you need remove all video recordings, you can format
the hard disk.
7. Why can’t login to NVR client？
Answer: Kindly please check configuration of network connection whether
is right, connection of RJ-45 interface whether is fine, if also can’t work,
kindly please check whether the user name and password are right.
8. Why can’t find any recording information when playback?
Answer: Kindly please check whether the connection of data line of hard
disk is good, whether the time of system is changed, whether the query
condition that is setted can’t save video files. If also have the question after
restarting, kindly please check whether the hard disk is damaged.
7.2 Maintenance
1. When DVR shutdowns, kindly please don’t turn off the power switch
directly, should use the shutdown button of system to avoid data loss or
damage of the hard disk.
2. Ensure DVR away from high temperature heat source and place.
3. Remove the dust deposited in the body timing, keep the good ventilation
around chassis, it is good for radiating.
4. About the audio/video signal line and RS-485 interfaces, kindly please
don’t hot swap, or these port will be damaged easily.
5. Check the HDD power cable and data cable of the NVR regularly and
look whether they are aging.
6. Avoid the audio/video signal effected by other circuits and devices as
much as possible, prevent the hard disk damaged by electrostatic or
induced voltage.