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MPO Polarity, Method A vs. Method B

MPO/MTP cables can be configured in a number of different polarities, method A, method B or method C.

Method A would be considered straight through, position 1-1, 2-2, 3-3 etc.

Method B is considered cross over, position 1-12, 2-11, 3-10 etc.

Method C would be the least common and is considered a paired cross over, position 1-2, 2-1, 3-4, 4-3 etc.

Infinite Cables stocks method A and method B cables. Method C cables are available by special order. The diagrams below further highlight method A and method B polarities.

Method A

Method B