rj-45 jack installation

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 Question by Bryce Hoover posted 22 Feb 2003
 rj-45 jack installation
I am new to network cabling and am installing a system in our new offices. When checking the system, we found that pins 3 and 5 cross over in the jack. Is this correct or have we got some defective jacks. Also, What is the purpose of this if it is correct?
Thank You
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 Answer by Dmitri Abaimov posted 24 Feb 2003
Dear Bryce,

If they are cross overed INSIDE the jack (before the part where they go in parallel), it's fine. It's a technique for compensating exessive cross-talk between pairs.

This is how I understood your question. Please send me more info if that's not what you were looking for.

Sincerely,
Dmitri Abaimov, RCDD

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