Looking for a Motorola Universal Data Systems 212A/D manual

Brent Hilpert bhilpert at shaw.ca
Mon Dec 16 16:01:56 CST 2019

On 2019-Dec-16, at 10:35 AM, Michael Brutman via cctalk wrote:
> I ran across this modem (circa 1982) and saved it, but I have no idea on
> how to control it.  Bitsavers doesn't seem to have a manual for it.
> It's a big, blue plastic box and it looks wonderful.  There is an array of
> 8 lights and 6 buttons; the HS button enables 1200 bps operation, otherwise
> it is 300 bps.  It echoes characters and responds correctly to
> DataTerminalReady not being asserted, so I think that if I can find the
> command set it might be functional.
> It's a little more primitive than my original Hayes 1200 that I first got
> in 1984.  (I'm not expecting a standard command set.)  A picture of it can
> be found here:
> https://photos.app.goo.gl/zWBPimcpZNUch6G28

These refs might give some clues:


(Switch configs for a model variation and reference to an "XXXT<CR>" escape sequence.)

(Manuals for related products)

More information about the cctech mailing list