Hayes Micromodem II / microcoupler (was: Re: Is this a IBM RT mouse?)

From: Tothwolf <tothwolf_at_concentric.net>
Date: Mon Jan 28 20:49:22 2002

On Mon, 28 Jan 2002, Doc wrote:
> On Mon, 28 Jan 2002, Dave McGuire wrote:
>
> > Me too. We could all meet somewhere and fight for it. :)
> >
> > -Dave, grunt grunt
>
> OK. I vote we all rescind our requests and deed the thing to Tony.
> He'll have several working clones made within the week.

Speaking of cloning old hardware...Is anyone still looking to duplicate
the Hayes Micromodem II "microcoupler" units (the external part)? I've got
one I accidentally dropped and broke the cover on, and have considered
going ahead and scanning the board and drawing up a schematic. Would there
be any interest in it? If there is enough interest to justify the time
required, I might even be willing to cad up the design of the case and pc
board so that a very close replica could be produced.

Now for a little history on these modems...
The Hayes Micromodem II is a modem for the Apple II series made around
1982-1983. It consists of an internal board that fits in an expansion slot
of an Apple II series computer and an external device with a tinted
plexiglass cover called a "microcoupler". These were connected together by
a 10 conductor shielded ribbon cable. Hayes designed these modems with the
telephone to computer interface as a separate unit (since it had to be FCC
approved) so it could then be used for future modem models. AFAIK, the
Micromodem II was the only modem that actually ever made use of the
microcoupler. The microcoupler only has two connectors, both on one end of
the unit. One is a 10 pin (one pin removed as a key) header for the ribbon
cable, the other is a RJ11 jack for a modular phone cord.

-Toth
Received on Mon Jan 28 2002 - 20:49:22 GMT