Mailinglist Archive: opensuse (1517 mails)

[James Knott <james.knott@xxxxxxxxxx>]

Per Jessen wrote:
> > Yes, and also in this country most of telephone wiring historically
> > >  was made not with twisted pair but with cables with parallel
> > >  conductors (like this:
> > >  http://img137.imageshack.us/img137/6526/resizeoftrp.jpg  )
> >      
> Yep, that's also the case in western Europa.  AFAIK, nobody uses twisted
> pair for analog telephone wiring.  For ISDN, it is often used on the S0
> bus, but that's more for convenience.
>
>    
That is similar to what, in Canada, is referred to as "drop wire".  It 
would be used to run from the cable in the street to the home.  Inside 
the home, a cable with 4 wires, often called "quad" or "JKT" was run 
around the home.  More recently, 3 pair CAT 3 cable has been used inside 
for running phone lines.  The cables back to the central office have 
been twisted pairs for many, many years, although not necessarily even 
CAT 3 quality.

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