> Is it acceptable to use 1 pair in a Cat-5 cable for POTS when 2 pair are1000base-T uses all 4 pairs in a CAT-5 cable, so that's out -- and also "beware" of certain switches that use the (previously) unused pairs for externally powering Ethernet equipment.
>> being used for 10base-T? Wondering about cross-talk, etc., introducing
>> noise between these two.
> No problem if you use 10base-T , usually none on 100base-T, but not
> compatible if you plan to use or upgrade to 1000base-T which some
> computers switches and routers are now supporting.
I have only experienced problems with some digital PBX phones when using a pair in a CAT-5 data cable running 10/100 Ethernet, analog seemed to be ok even on long runs (50M+).
Regards,
David Clayton, e-mail: snipped-for-privacy@XYZ.myrealbox.com Melbourne, Victoria, Australia. (Remove the "XYZ." to reply)
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