DVR operation manual
74
Possible reasons are as followed:
1 There is something wrong with the frontal PTZ.
2 The setting, connection or the installation of the PTZ decoder is not correct.
3 The connections are not correct.
4 The PTZ setting of the device is not correct.
5 The protocols of the PTZ decoder and the device are not matched.
6 The address of the PTZ decoder and the device are not matched.
vii.
When multiple decoders are connected, the far port of the PTZ decoder line A(B) must
connect a 120
resistance to reduce the reflection otherwise the PTZ control is not
stable.
viii.
The distance is too far.
12. The motion detect is not working,
Possible reasons are as followed:
1 The time range set is not correct.
2 The motion detect area set is not correct.
3 The sensitivity is too low.
4 Limited by some hardware edition.
13. I can not login via web or CMS.
Possible reasons are as followed:
1 The system is windows 98 or win me. We recommend updating to windows 2000sp4 or
higher Version or installing the software for low edition.
2 ActiveX is hold back.
3 The version is not exceeded dx8.1. Update the display card driver.
4 Network connection failure.
5 Network setting issues.
6 Invalid password or user name.
7 The CMS is not matched the device program version.
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:
