There were several of these cards. DEC eventually came
out with their own
 versions (starting with the GIGI and then the VT240, VT340, etc) I've seen
 the GIGI called a VK100 but it isn't Vt100 compatible. Since 'Tek4010' was
 the universal language of graphics at the time, this is the most emulation
 mode. All my graphics terminals can do TEK4010 emulation to a greater or
 lesser degree.
 --Chuck 
And for those dos boxes out there... mskermit...would do it I think.
BTW Kermit-95 is great for use on MS Win32boxes... --(just a happy customer...)
Bill