From the manual it looks like "sort of"
Sort of meaning they have their own methodology, where if the loco enters a track with an asymmetrical source, witht he effective DC polarity the same as the current direction of tracel, the loco will just keep movimng, and if it is reverse, the loco will come to a stop. Since you can't control which half of the asymmetrical DCC signal to pass based on loco direction, in theory a QSI Quantum loco will either stop or just keep going.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
I have a loc with a QSI Quantum sound dedcoder is this decoder suporting asymetrical DCC?