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

Michael Brutman mbbrutman at brutman.com
Mon Dec 16 17:07:00 CST 2019

Brent - thanks!  I had found the arcelect site and read the docs on a few
related modems; that gave me some insight.  But a lot of what they have is
more primitive that this one, so much of the manuals do not apply.

I opened the case looking for clues and taped to the underside of the lid
was a handwritten note that said "To awaken the UDS 212A/D mode send to UT
capital EN or H Help menu."  It was a little cryptic but sending "EN" did
launch me into a menu system that would let me dial or set pre-set phone
numbers for dialing.

At the moment it auto answers and tries to dial, but it won't complete a
connection.  My VOIP line might be to blame for that.  I'm happy because I
got really lucky with the handwritten note ...

On Mon, Dec 16, 2019 at 2:02 PM Brent Hilpert via cctalk <
cctalk at classiccmp.org> wrote:

> 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:
> https://books.google.ca/books?id=u1cLS3rMWSwC&pg=RA2-PA1-IA15&lpg=RA2-PA1-IA15&dq=motorola+212A/D&source=bl&ots=exwzJccl5t&sig=ACfU3U2pl0FAtd80wNsCDz5MtxYdZxs4zg&hl=en&sa=X&ved=2ahUKEwjFl-_SlLvmAhXTPn0KHb1TC4YQ6AEwCHoECAsQAQ#v=onepage&q=motorola%20212A%2FD&f=false
> (Switch configs for a model variation and reference to an "XXXT<CR>"
> escape sequence.)
> https://stason.org/TULARC/pc/modems-telephone-ISDN/M-O/MOTOROLA-INC-Modem-synchronous-asynchronous-212A-D.html
> (Manuals for related products)
>         https://arcelect.com/Telenetics-UDS_202T-VDC_modem.htm
>         https://arcelect.com/UDS_201BC-AS_modem.htm

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