"David A. Sinck" wrote:
> 'unused'?  So if I were being pointlessly cheap, I could use one
> strand of cat5 to populate two jacks?  Or are they carrying important
> grounding information?

So when a few years from now one of the copper strands cracks, you
dont have to change wires or drag new cable, just swap out a pair.

Also useful for carrying voice or modem to the same unit...

-- 
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