MTP/MPO configurations :
Industry standards such as EIA/TIA 568C support three configurations for MPO/MTP cables
1. Type A: One-to-one fiber wiring between connectors
2. Type B: One-to-one fiber wiring between connectors with one connector, flipped such as that fibers are wired
{1 to 12, 2 to 11, 3 to 10...etc}
3. Type C: Fibers flipped in pairs such that fibers are wired {(1 to 2, 2 to 1), (3 to 4, 4 to 3), etc.}
youtube: https://www.youtube.com/watch?v=ZJIotB2kBBM
URL: www.tophonor.com.tw