Re: Datalink 2400 internal modem card

[Nama <forums6000@mac.com>]

On May 6, 7:43 pm, "Don" <numberfiveplus...@gmail.com> wrote:
> Glad you, at least, could confirm that it responds to commands.
>
> Feel free to post a reminder, though it'll probably be a few weeks before I
> get things sorted enough to figure out the cable.  I'm fairly sure it'll be
> easy to replicate once I determine the connectivity.
>
> --
> be seeing you ... Don
> Don Melton, Sr. Consultant, Vatic Technologies Limited"Nama" <forums6...@mac.com> wrote in message
>
> news:6851995.1634.1336271127378.JavaMail.geo-discussion-forums@pbnh4...
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> > On Friday, May 4, 2012 10:14:07 PM UTC+9, Don wrote:
> >> Phil,
>
> >> Good News/Bad News:
>
> >> Good:
> >> I've got one of these ... and managed to find it (I've just moved house
> >> and
> >> most everything is still in boxes) and have a look at it.
>
> >> The on-board communications package is accessed (according to the manual)
> >> from BASIC by:
> >>    1) if you want 80 column, do a PR#3
> >>    2) type "IN#s", where "s" is the slot number the card is in
> >>    3) type "<CTRL>A" followed by "T" to get into "terminal mode"
> >>    4) type "<CTRL>A" followed by "?" to get a "communications menu" that
> >> lets you select various options
>
> >> The card responds (again, according to the manual)  to the standard AT
> >> command set including some of the extended "&" commands.
>
> >> Bad:
> >> The adapter cable looks simple -- it terminates in a pair of RJ11 sockets
> >> that are affixed to a PC board and encased in a plastic "shroud" for
> >> mounting in a slot at the back of a ][+ or //e.  However ... I can see
> >> that
> >> the board has some surface-mount discretes on it but I can't identify
> >> them
> >> or how they're connected.  I tried to remove the board from the shroud to
> >> get a better look, but it doesn't look like it will budge without
> >> breaking
> >> something. :-(   Unfortunately, all of my test gear is still packed so I
> >> can't even do a quick continuity check (I'm guessing the SM devices are
> >> probably just some sort of fuse) to see if the wiring is effectively
> >> straight-through.
>
> >> There are a lot of pages in the doc's (70 in the "DataLink User's
> >> Manual",
> >> and 96 in the "Communications Software User's Manual") so It would take
> >> me
> >> some time to scan them.  [N.B., unlike many Apple ][ add-on cards there
> >> is
> >> no circuit diagram that might give a clue to the layout of the adapter
> >> cable. :-( ]
>
> >> P.S.
> >> I may try to scan the books and figure out the cable once I'm finally
> >> moved
> >> in [and if I remember :-)]
>
> >> --
> >> be seeing you ... Don
> >> Don Melton, Sr. Consultant, Vatic Technologies Limited
> >> > Ok, I have one of these cards that came with a few things I purchased a
> >> > while back. It's missing the cable and I don't have a manual for it,
> >> > and I
> >> > can't find anything online except for a few AE adverts and brochure
> >> > scans.
> >> > In one of these brochure scans I saw reference to a terminal program in
> >> > the Datalink's ROM, does anyone know how to access it?
>
> >> > Cheers
> >> > Phil
>
> > Awesome...That helps a lot. I tried it out last night and it all works as
> > you described. Thanks.
>
> > I may bug you about the cable and connector at a later date if you don't
> > mind. I would really like to build a cable for it and see if I can
> > actually connect it to something.
>
> > Cheers.

Thanks, and again, much appreciate all your help.