WTD: AT&T 6300 Personal Computer mother bd dip switch map

[Tony Duell]

> 
> 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