VI-90 and VG920 terminals?

I recently stumbled across an odd set of emulations available in the controller for a printer I have. This system was introduced in the early 80's, and was only recently EOL'd by xerox (the 4090LPS). The default terminal emulation is ADM3, which works well with the Link MC5 terminals. ADM11 is also available, along with VI-90 and VG920, which I've never heard of. To make life a little bit easier while playing with this beast, I would like to tie it to a pc (linux or windows). Changing the system directly is not really an option, as the whole thing is a very bizarre setup, based loosely on DEC architecture. The question is, does anyone know anything about the VI-90 or VG920 terminal emulations? And, does anyone know of a way to directly emulate an ADM3 or ADM11 terminal under linux or windows? (via serial, of course) The system has many options available, including: a scsi tape drive option (I have the equipment, but it's another xerox oddity to run), a shared-disk interface option, ethernet (early implementation for thicknet), a 9-track tape drive (I have, and use, this one), an "online" (bus & tag channel-attach) interface, which I also have. It's an odd, and interesting, system. carry, total, about 512M of mem, spread across the various subsystems (Main, Font, Graphics), all on individual chips, nothing socketed, lots of blinkenlights. Anyone wanting more info (or even an entire controller!) just ask! --Shaun -- "If you live to be a hundred, I want to live to be a hundred minus one day, so I never have to live without you." -- Winnie The Pooh http://www.lungs4amber.org