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steq184

Vga cat5 cable

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I have installed my dvr under the stairs. To connect to my living room tv I am using via/cat5 adaptors. The run is about 10 metres.

Anyway when I connected it up using the cat5 i find the screen is all green and pretty dark too.

What could be the problem?

I am sure the rg45s have been wired properly and don't think the lengthy of run is excessive.

Any advice would be great.

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An all green screen usually means that only one color is being transported. VGA-to-CATx adapters just send each individual color (Red, Green and Blue plus Sync) down one pair. See diagram below:

 

266316_1.png

 

If the adapters and cable are wired correctly and you still have the problem, you are probably exceeding the maximum distance of a passive VGA-to-UTP adapter. In that case, you can use a better passive adapter or an active VGA-to-UTP adapter for extended transport.

 

An example is the Muxlab VGA Balun Kit but there are many others. The Muxlab device specifies up to 350 feet (106m) via Cat 5 twisted pair @ 800x600 resolution. Distance will be reduced at higher resolutions.

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