ID this Data General

I picked up a small Data General computer this weekend. Can anyone id it? It's about 8" high x 8" deep x 2 foot long. It has a tape drive, one floppy drive, one dummy floppy drive and a (removed) 5 1/4" hard drive. One the back it says "Desktop Series". There are also labels that say "CPU W/FIS" and "CPU 256K" on the back. Four of the sections are labled "E 8712-N", "E 6336", "E 6301" and "e 6270-2" on the back. One of the odd things about it is that it's wired for 220 volt AC power and doesn't appear to be configurable for 110 VAC. (It only requires 5 and 3.15 Amps.) It has two power inputs on the back. I posted pictures at "www.intellistar.net/~rigdonj/nova-dt/dg-back.jpg", "www.intellistar.net/~rigdonj/nova-dt/dg-frnt.jpg", "www.intellistar.net/~rigdonj/nova-dt/dg-c.jpg". Joe