Re: Datalink 2400 internal modem card

["Don" <numberfiveplusone@gmail.com>]

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" <forums6000@mac.com> wrote in message 
news:6851995.1634.1336271127378.JavaMail.geo-discussion-forums@pbnh4...
> 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.