> 568B is preferred.
By whom? :-) The United States National Communication Systems Federal
Telecommunications Recommendations do not recognize T568B. TIA/EIA
recommends T568A for new construction and is common in rest of
world. (The ANSI/EIA/TIA-570 standard, 'Residential Telecommunications
Cabling Standard', should be followed. It indicates the use of T568A
for residences.)
It's all incredibly confusing, and really doesn't matter unless
you're a Bell-head.
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