User manual

54D-Link DCS-942L User Manual
Section 6 - Troubleshooting
7. Why does a series of broad vertical white lines appear through out the image?
ItcouldbethattheCMOSsensor(asquarepanelsituatedbehindthelensthatmeasuresthelightsignalsandchangesitintoadigitalformatso
yourcomputercanpresentitintoanimagethatyouarefamiliarwith)hasbecomeoverloadedwhenithasbeenexposedtobrightlightssuch
as direct exposure to sunlight or halogen lights. Reposition the Network Camera into a more shaded area immediately as prolonged exposure to
bright lights will damage the CMOS sensor.
8. The camera is producing noisy images. How can I solve the problem?
The video images might be noisy if the Network Camera is used in a very low light environment.
9. The images are poor quality, how can I improve the image quality?
Make sure that your computer’s display properties are set to at least 6-bit color. Using 16 or 256 colors on your computer will produce dithering
artifacts in the image, making the image look as if it is of poor quality.
The conguration on the Network Camera image display is incorrect. The Web Conguration Video section of the Web management allows you to
adjust the related-parameters for improved images such as: brightness, contrast, hue and light frequency. Please refer to the Web Conguration
section for detailed information.
10. Why are no images available through the Web browser?
ActiveXmightbedisabled.IfyouareviewingtheimagesfromInternetExplorermakesureActiveXhasbeenenabledintheInternetOptionsmenu.
YoumayalsoneedtochangethesecuritysettingsonyourbrowsertoallowtheActiveXplug-intobeinstalled.
If you are using Internet Explorer with a version number lower than 6, then you will need to upgrade your Web browser software in order to view
the streaming video transmitted by the Network Camera.
11. The PIR is no operation well, how can I improve the PIR quality?
-ForthePassiveInfraredSensor(PIR)tofunctionproperlyitisrequiredtohavedirectlineofsitetotheobject.Whentheroomhasmany
obstacles or the line of site is obstructed by glass, the PIR will not function properly.
- When the environment temperature is too high, the PIR detection will slow down and should not be mistaken for a faulty PIR.
- This Network Camera can only be installed indoors. Do not install this camera in a place where IR interference can be a problem. IR
interference can be found close to glass doors or windows, where direct sunlight can cause interference or in the path of car headlights.