16 Dec
2000
16 Dec
'00
2:03 a.m.
The Microcoupler is just the phone line interface, of a two part
modem. That same coupler was used on the S-100 board version modem
and the Apple II board modem. Seems to me the telephone company
required a separate DAA (data acquisition something_or_other?)
to interface to ''their'' phone lines. Remember all that crap
about we couldn't just hook things up - we might ''damage''
telephone company property? Turns out all we really damaged was
their profits!
Bill Hemmings
Tucson, AZ
16 Dec
16 Dec
4:15 a.m.
The DAA was for Data Access Arrangement, and you're exactly right, in that
the Microcoupler is just that, the "phone-line interface," or DAA. All it
did was ensure we didn't hook up more load than the line would drive.
Dick
----- Original Message -----
From: "bill_h" <bill_h(a)azstarnet.com>
To: <classiccmp(a)classiccmp.org>
Sent: Saturday, December 16, 2000 6:03 AM
Subject: Re: Early Hayes Modems
The Microcoupler is just the phone line interface, of
a two part
modem. That same coupler was used on the S-100 board version modem
and the Apple II board modem. Seems to me the telephone company
required a separate DAA (data acquisition something_or_other?)
to interface to ''their'' phone lines. Remember all that crap
about we couldn't just hook things up - we might ''damage''
telephone company property? Turns out all we really damaged was
their profits!
Bill Hemmings
Tucson, AZ
4:24 a.m.
The message subject reminded me of something... :)
Does anyone here know where I can obtain a Hayes Chronograph?
tnx!
g.
8:38 a.m.
On Sat, 16 Dec 2000, Gene Buckle wrote:
The message subject reminded me of something... :)
Does anyone here know where I can obtain a Hayes Chronograph?
I have one (not parting with it of course :) and it's the only one I've
ever seen in my days. My guess is that they are not terribly common.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
1:32 p.m.
Gene Buckle writes:
It's basically a clock you can talk to using special AT commands. It came
in the same aluminum extrusion case that the Hayes 300,1200 and 2400 baud
modems came it. It was part of the Hayes Stack family if memory serves.
It had two serial connectors on it - one went to the serial port on the
host, the other connected to another (typically Hayes) modem.
OBTrivia: The Hayes Smartmodem 300 could send morse code using "AT C"
followed by the dot/dash sequence you wanted. Did any other modem have
this ability?
g.
Does anyone here know where I can obtain a Hayes
Chronograph?
I vaguely remember those, but I can't remember what they do.
(I mean, I know it's a clock. :)
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