Well, based on the fact that the terminal I've got says it's a either a VT100 or a VT101, I'd say pull the back options plate off (only takes 4 screws) if you see a 4 slot backplane in there you're probably good to go. If not, your out of luck. I opened up the second of the three terminals this morning when I was getting some stuff ready to go into storage. It doens't have the backplane. I've got one more I'll have to check. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |