Digital Video Recorder: User manual
44
The connections are not correct.
The PTZ setting of the DVR is not correct.
The protocols of the PTZ decoder and the DVR are not matched.
The address of the PTZ decoder and the DVR are not matched.
When multiple decoders are connected, the far port of the PTZ decoder line A(B) must connect a 120 ohms resistance to reduce the
reflection otherwise the PTZ control is not stable.
The distance is too far.
12.
The motion detect is not working.
Possible reasons are as followed:
The time range set is not correct.
The motion detect area set is not correct.
The sensitivity is too low.
Limited by some hardware edition.
13.
I cannot login via web.
Possible reasons are as followed:
The system is Windows 98 or windows me. We recommend updating to Windows 2000sp4 or higher edition or installing the
software for low edition.
ActiveX is hold back.
The edition is not exceeded dx8.1. Update the display card driver.
Network connection failure.
Network setting issues.
Invalid password or user name.
The user edition is not matched the DVR program edition.
14.
The image is not clear or there is no image in network preview state or video file playback state.
Possible reasons are as followed:
