Depending on what type of motor drive, I'm sure you'll be able to find a suitable DCC accessory decoder. Don't just limit yourself to only thinking about Massoth decoders. There are other brands of decoders capable of driving solenoids, flip-over motors like LGB, slow action motors, stall motors, servos etc.
I've no experience of the Aristo point motor you're referring to so I don't know what type of drive it is.
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Going by the wiring diagram, it looks like it takes a reversable DC supply or half-wave rectified AC just like the LGB point motor. It does indeed appear to be motor driven. Alan may well be correct in that it may need a longer burst of power than some designs. Some point decoders are certainly adjustable in that regard - I seem to remember that the Massoth decoder has a cv for the pulse duration?
There's an old thread about these motors (2009) on mylargescale.com. Seem to be very similar to another make (Bohler?). Doesn't look very waterproof to me, and even if it is supposedly sealed I fear the slightest bit of damp on the motor commutator would upset things, unlike the LGB design where the electrical coil is fixed and the solid armature moves.
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- I'll bring one along for you to look at if you want.
WooHay!
