On 19 May 2009 20:31:23 -0400, DJ Delorie wrote:


Jim Thompson writes:
I presume I should use the "A" terminals, though I have not a clue,
I've never done anything but plug CAT-5 cables together before ;-)

Which is correct?

They're two different standards, both "correct". I use the B
configuration, which AFAIK is more reliable for higher speed ethernet.

AFAIK, both are exactly the same electrically, only the polarity of
the wires (vis-a-vis color codes) is different. Were you to wire B to
B or A to A it is straight through. Wire A to B then it is a
cross-over.

Check your existing cables and see which they use.

http://en.wikipedia.org/wiki/TIA/EIA-568-B
http://en.wikipedia.org/wiki/Category_6_cable

I had one long cable that didn't work with the A wiring (packet loss),
but did work with the B wiring. YMMV.

Interesting... Actually as I think about this it may be possible, but
I'd suspect that there was a hidden flaw in the cable that changing
the wiring coincidentially fixed? Might that be possible?