1 Oct
2006
1 Oct
'06
4:03 p.m.
Hi - I am attempting to install a CGA card onto a AT&T 6300 Personal
Computer. It currently has only a 25-pin CRT port for a terminal dumb
terminal (w/o keyboard). I need the dip switch map so I can set for the
If that's the machine I think it is, that DB25 is _not_ for a terminal.
It's not a seiral port, it's not a parallel port, it's video output for
special Olivetti monitors. IIRC there are power lines (at least +12V --
the runoured 70V is a myth!) there as well to power a monochrome monitor.
Alas I don't have the pinout or specifications for that connector.
-tony