Found an article on the web a few months ago. Even printed it out. Can't find it now of course. So from memory... Basically, there's a structured wiring standard, often referred to as TIA 568-A. The confusing thing is that the TIA 568-A standard allows two wiring patterns, T568A and T568B. But this is not revision A and revision B. When the standard was originally created, they defined what is now called T568B. However, AT&T had a different wiring pattern. So they added the AT&T pattern as T568A. I went with T568B but recommended T568A because lately I've encountered some products where the manufacturer only color coded for T568A. Its a pain when your jacks are only coded for T658A and you have to chase down which color wires have to be switched and then remember it for each jack. The important thing is to pick either T568B or T568A and stick with it. I made sure to write down. I have a good memory but its kind of short :-) Tim Wilson wrote: > On Fri, 11 Jan 2002, Douglas Mosman wrote: > > > Use the T568A wiring pattern (vs. T568B). I'm finding some SOHO stuff that is > > just wire-coded for T568A. > > Anybody know the history of the A and B patterns? I've always used B > (that's what someone told me to use a few years ago), but I don't know > if it's better. > > -Tim > > -- > Tim Wilson | Visit Sibley online: | Check out: > Henry Sibley HS | http://www.isd197.org | http://www.zope.com > W. St. Paul, MN | | http://slashdot.org > wilson at visi.com | <dtml-var pithy_quote> | http://linux.com > > _______________________________________________ > Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota > http://www.mn-linux.org > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list