I'm trying to determine how to connect the CAT5e patch cable (4 twisted pairs) to the RJ45 wall jack. The 100' cable came with plugs on each end. I cut the cable to the desired length and will connect the cut end to the wall jack. I believe that I use the T568A configuration (correct?), but I don't know how the terminals on the RJ45 wall jack are numbered. There are two columns (4 each) of terminals. Is the numbering column by column or row by row? thanks for your help

Turn the RJ-45 end upside down so that the little locking lever is on the bottom. Look at the wires in the end. An A standard should start with Not Green/Green on the left hand side. B would of course be Orange. When you know which way the end is punched, then do the keystone with the same standard. The keystone should show you both the A and B standards. If it doesn't, get one that does. The following link to a page that shows an RJ-45 keystone will give you an idea of how the A and B standard color codes are usually put on an outlet so you know what to punch where. The following wickipedia Cat 5 page is actually a pretty good resource so give it a look and read. Don't forget to test the cable when you're done!