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OT: Ethernet/Telephone cabling

You can google for the pinout of a typical ethernet cable. There are only four 
wires used, but if you tried using six of those conductors you might get some 
crosstalk. I imagine the four wires that aren't used are done intentionally 
to preserve signal quality.

On Friday 23 July 2004 16:18, Robert La Ferla wrote:
> I purchased a new house that has each room pre-wired with CAT-5 jacks.
> All the cables meet in the basement but there are no connectors on
> them.  These same cables are also used for telephone.  Each cable has 8
> conductors (in 4 twisted pairs).  One twisted pair (or 2 conductors) is
> used for telephone leaving 6 conductors (3 twisted pairs) free.  My
> question is can I have both telephone and Ethernet on the same cable?
> If so, what speed?  Do I have other options like some sort of Ethernet
> telephone?
> Thanks in advance,
> Robert
> _______________________________________________
> Discuss mailing list
> Discuss at

David Backeberg (dave at
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