Date   : Sun, 03 May 2009 11:02:51 +0100
From   : jumbos.bazzar@... (Mark Haysman)
Subject: Econet over UTP ?

----- Original Message ----- 
From: "Mike Tomlinson" <mike@...>
>>Anyway, made up the cables, found the Cat5 splitters (takes 4 pairs
>>and splits out to 2 pairs each per two sockets) behind the TiVo, and
>>connected it all up to the cable going upstairs.
>
> Not gonna work... No earth.

Yes there is....the house mains earth. That's how it's working. Because it's 
differential transmission, the induced noise doesn't affect it.

Mark.