Re: Cat 5 doublers

[Keith Doxey <ukha@xxxxxxx>]

Quoting Malcolm Surgenor <malcolm@xxxxxxx>:

> Has anyone used these?
>
> Cat.5 10/100 TX Base Economisers - see
> http://www.videkonline.co.uk/SubSections.asp?sectionID=37#
>
> I find myself short of a cat5 socket in one particular room and
wondered
> about using one of these 'doublers'.  I'm a bit confused about the
wiring
> comments though. I had thought it was just a case of plugging in one
of
> these at either end of the cable run...
>

Hi Malcolm,

You do just plug one in at each end. Basically what it does is use the
normally
unused (for ethernet) Blue and Brown pairs to carry a second ethernet
circuit

eg

Adapter @ Patch         Cable      Adapter @ Room

OR--- SKT1 ---------------OR----------- SKT1 ---- OR
GN--- SKT1 ---------------GN----------- SKT1 ---- GN

OR--- SKT2 ---------------BL----------- SKT2 ---- OR
GN--- SKT2 ---------------BN----------- SKT2 ---- GN

The connections that would normally have had the Blue and Brown pairs on
them
4&5, 7&8 are not connected to anything on SKT1 or SKT2 at either
end.

An alternative to these is to use a low cost hub in the room. You then only
need a single Ethernet port on your main hub and can feed as many PC's as
you
want over the single cable.

Hope that helps

Keith

www.diyha.co.uk
www.kat5.tv