Strange physical network question

[Joony]

Ok, so I accidently punched down in reverse order, as in I put white/blue in the place of blue/white and white/orange in the place of orange/white...It still works...it works both ways in fact...why is that?

I don't have a LAN tester though...I wonder if it would detect the cabling as correct for both ways...

 

[nightowl]

If you just flipped the white wire with the solid wire and kept the colors in the right order that it would not make a difference. In your case, if you went with orange, white/orange, white/green, white/blue, blue, green, white/brown, brown instead of white/orange, orange and blue, white/blue the cable would be essentially the same as a normal cable. The real concern is the twists in the pairs.

 

[sparky853]

Also depends on the length of the cables used. I had a problem where i mixed up the wires, and it would work fine, for cables ~5 feet or less. Longer than that and it didn't work. Interference between the twisted pairs.

Go Figure....

 

[imported_Paladin]

Originally posted by: Joony....I put white/blue in the place of blue/white...

The white blue is the tip wire, and the blue white is the ring wire -- corresponding with the tip and ring of a quarter-inch telephone plug. What you have are tip-ring reversals on every pair. As long as the circuit is a balanced circuit a tip-ring reversal should not affect it. If you try to use that wiring for something that is not on standard balanced pairs then it will fail.

Should means it might not work.

I don't have a LAN tester though...I wonder if it would detect the cabling as correct for both ways...

A Cat-5 cable tester will find your reversals and fail certification. The correct procedure it to re-terminate correctly.

 

[spidey07]

Originally posted by: Paladin

Originally posted by: Joony....I put white/blue in the place of blue/white...

The white blue is the tip wire, and the blue white is the ring wire -- corresponding with the tip and ring of a quarter-inch telephone plug. What you have are tip-ring reversals on every pair. As long as the circuit is a balanced circuit a tip-ring reversal should not affect it. If you try to use that wiring for something that is not on standard balanced pairs then it will fail.

Should means it might not work.

I don't have a LAN tester though...I wonder if it would detect the cabling as correct for both ways...

A Cat-5 cable tester will find your reversals and fail certification. The correct procedure it to re-terminate correctly.

wahoo! we got ourselves another cable guru!