I have a DeWalt thickness planer with a dust collection port on the outfeed side, but the rotation of the cutter head sends the chips to the infeed side. I have a vacuum type dust collector, but this summer I designed and built a three stage hybrid collection system. The first two stages (the yellow barrels) are passive and the third stage (the broom and shovel) is a manual system. Realistically the third system does most of the work.
See the attached photo.