Countless web pages, probably including the manufacturer of the jacks you are using, have color-coded diagrams of which wires go in which slots for the A and B wiring patterns. I think the ones the Borg sells even have a diagram on the card, or a stack of brochures from the manufacturer. Play close attention to where it says to maintain the twist for each pair to within a half-inch of the slots.
Now that I look at it, that wall jack diagram seems to be for the 'a' pattern. But the pin numbers are correct, so you can just match the colors up with the pin numbers on the 'b' diagram on the first link.
(I'm lazy, and don't have a punchdown tool any more. I just use premade cables....)
-- aem sends...
That is a good point Mark. As the data rate goes up, you have to watch your pairings. I bet your 10 mb LAN was failing about 50% of the time but it would connect, just slowly. I saw a farmer running AS/400 (1 mb twinax protocol) down a barbed wire fence, just to prove a point but it was slow.
?
Thats what the cut off blade on the punch down tool is for.
He was referring to putting the rj45 on the cable- you don't use the punchdown for that, you use the crimper.
[snip]
No wonder the wiring label didn't make any sense! I checked the jack with a continuity tester. This is what I expected:
1 8 2 7 3 6 4 5And here is what I found (it matches the label):
2 8 1 7 6 4 3 51236 and 8754 would almost make sense. The way they did it has a lot of unnecessary crosses. At least now I know how to hook it up.
Bob
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