By the way, those "Moog" motors are actually Parker
SM23xx series servos.
Parker sells quite a few servos to other companies for rebranding. They may have Moog-specific interfaces, but I'm pretty sure the guts, and maybe the encoders, are Parkers.
EDIT - updated speculation:
I think those Moogs are, essentially, Parker servos with iBE-series integrated controllers attached. Probably custom wound, too, since they look like the slotless SM-series but the Moog page indicates they have "15 slots."
I've attached the iBE flyer. Check out page 7; the power and I/O pinout & diagram look suspiciously like the Moog page, don't they?
I've also got the iBE user manual, but its too big to attach (even zipped). Feel free to go to
www.parkermotion.com/products/Rotary_Ser...30_32_80_567_29.html
And scroll to the bottom for the iBE series. All the manuals and stuff are there.
More importantly, the Parker iWare software is available for download... may be able to talk to the Moog servos through that.