It finally accepted the DH and started using it! I know have RSTS/E v8.0 running and 16 terminal ports that work! The only bad part is, I have ABSOLUTELY *NO* idea what made it start working... I'd given up for the night and started cleaning up my mess, when I got a dumb idea and hung the console teleprinter off the 3rd port of the DH. Pushed enter, and got crap. Screwed with baudrates and other etc. and got logged in. Went upstairs and stole a VT100 off their router (They won't notice... I'll put it back...) and tested it out. All the ports are at funny baudrates and such, but they all work! Now, I have to think of a way to get this online... -------