Which to use 568A or 568B?

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 Question by Robert Osenbaugh posted 18 Nov 2002
 Which to use 568A or 568B?
What are the pros and cons of using 568a versus 568B?
Can you mix the two?
 Answer by Dmitri Abaimov posted 04 Dec 2002
Dear Robert,

The 568A is a bit more convenient when you have to deal with 2-pair digital phones AND Ethernet devices, running on the same cabling system. If it's 1-pair digital or analog phones and Ethernet devices, it does not really matter.

You absolutelly cannot mix the pin layout in one cabling system

Dmitri Abaimov, RCDD

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