[Coladam] ADAM cable

Joe Blenkle jblenkle at sacnews.net
Fri Jan 23 23:30:24 CET 2009

OK, thanks for the info....someone else told me I should ask Herman about it, but I haven't heard back yet. I also seem to remember visiting a web page not too long ago for a company that makes all kinds of cables. If I can find it again, perhaps I can inquire there as to the cost of making one.

Joe B.

----- Original Message ----- 
From: "Rich Drushel" <drushel at apk.net>
To: <coladam at adamcon.org>
Sent: Friday, January 23, 2009 2:20 PM
Subject: Re: [Coladam] ADAM cable

> On Thu, January 22, 2009 5:35 pm, Joe Blenkle wrote:
>> Anyone got a clue where I might obtain one of those cables that was produced
>> (I think by Eve Electronics) that allowed you to plug in three devices to the
>> side port at the same time?
>    I think that HLM-GMK could make you one.  The expensive part was the
> crimp-style card edge connectors for 50 pin (2 x 30).  I think that Chris
> Braymen (who made the MIDI adapter, also a sideport device) sold some
> port splitter cables at one time.
>> Or how difficult would it be too build one?
>    It is pretty easy if you have the crimping tool.  The tool used to be
> a Radio Shack item, but Radio Shack doesn't stock much stuff anymore.  You
> just have to be careful plugging and unplugging; there are only so many
> insertion cycles before the crimp connections get dodgy.
>    I used to get the connectors from DigiKey, though they were expensive:
> maybe $6 apiece a decade ago.  Sometimes surplus places had them for less.
> 60-pin was not so common; it was the 62-pin version for the IBM-PC XT bus
> that was everywhere.  I think in an emergency once I might have used a
> 62-pin connector and done something to key/block off the last part of the
> slot so I wouldn't get the card plugged in the wrong wey.
>    Cable length is important; if it's more than about 12 inches long,
> it acts as an antenna, and/or the signals get attenuated and stuff stops
> working reliably.  My all-in-one HD system with 2 internal orphanware
> serial boards (routed to DB-9 connectors out the back) has a 2-connector
> cable that also runs the last connector back out the side port, so you can
> plug in some other card
>    I remeber seeing George Harpster's system (in a castoff box from some
> piece of DEC equipment) that had maybe 5 or 6 extra slots on it.  He
> just ran the cable out and did something to anchor the connectors down
> well to the baseboard.  Maybe they even had mounting lugs (though that
> would be very unusual for crimp-style connectors).
>    *Rich*
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