User manual

85XX Series Network DVR User Manual……………………………………………………………………….V1.0
- 108 -
 The connect is not correct
 The PTZ setting of DVR is not correct
 The PTZ decoder does not match with the DVR agreement
 When connecting multi decoder, 120 Ω electric resistances should add at the end of PTZ
decoder AB line, or else PTZ will not be stable.
 The distance is too far
11. Question：Why the “Stop recording” by the right mouse button does not work, how to stop
recording?
Answer：：
 The “Stop recording” by the right mouse button is only suitable for Manual recording. It can’t stop
recording when it’s in “start recording” or the video in video plan.
 If you want to stop recording, please set the time is not recording.
12. Question：How much space of HDD for recording per hour?
Answer：
 Each channel takes about 14Mbyte for audio recording
 HDD space cost is related with “Best, Good, Middle” in “Record mode>Bit rate” and the video
size of the period. If the video is still, HDD cost will be small; if the video is moving, HDD cost will
be large. “Best” will take 320Mbyte of each channel per hour; “Good” 50~100Mbyte of each
channel per hour when video is still or few moving, 100~200 Mbyte of each channel per hour
when video has big moving or much moving; “Middle” 50~100Mbyte of each channel per hour
when video is still or few moving, 100~150 Mbyte of each channel per hour when video has big
moving or much moving.
13. Question：Why it can’t do motion detection?
Answer：：
 The setting of the area of motion detection is not correct.
 Low sensitivity
14. Question：CD-writer/USB backup error
Answer：
 The data exceeds the capacity of backup device
 The backup device incompatible
 The backup device is damaged
15. Question：Why I/O alarm does not work?
Answer：
 The alarm setting is not correct
 The alarm line connection is not correct
 The alarm input signal is not correct
 An alarm device connect two-loop access at the same time
16. Question：Why remote control can’t work?
Answer：：
 The address of remote control is not correct
 The distance of remote control is too far or the angle is too biased
 Remote control batteries run out
 Remote control is damaged or the front panel of dvr is damaged
17. Question：Why WEB can`t log?
Answer：
 Please check the network whether it’s connected. And check if the panel LINK or 100M LED