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• PTZ decoder and DVR protocol is incompatible.
• PTZ decoder and DVR address is incompatible.
• When there are several decoders, please add 120 Ohm
(impedance matching) between the PTZ decoder A/B cables’
farthest end to delete the reverberation. Otherwise the PTZ control
is not stable.
• The distance is too far.
12. Motion detection function does not work.
There are the following possibilities:
• Period setup is incorrect.
• Motion detection zone setup is incorrect.
• Sensitivity is too low.
• For some versions, there is a hardware limit.
13. Cannot log in client-end or web.
There are the following possibilities:
• For Windows 98 or Windows ME user, please update your system
to Windows 2000 sp4. You can also install client-end software of a
previous version. Please note right now, our DVR is not compatible
with Windows VISTA control.
• ActiveX control has been disabled.
• No dx8.1 or higher. Please upgrade display card driver.
• Network connection error.
• Network setup error.
• Password or user name is invalid.
• Client-end is not compatible with DVR program.
14. Only a mosaic is displayed, no video appears when preview or
playback video are filed remotely.
There are following possibilities:
• Network fluency is not good.
• Client-end resources are limited.