Rabbits ran AMLCs as well.
The ICS stuff was on the larger 50 Series, towards the end.

Most likely a rabbit or low to medium 50 Series.

----- Original Message ----- 
From: "Anthony Youngman" <[EMAIL PROTECTED]>
To: "U2 Users Discussion List" <[EMAIL PROTECTED]>
Sent: Monday, February 23, 2004 3:16 AM
Subject: RE: [OT] Pr1me Hardware question


If it's an AMLC ... I'm sure an engineer on (I think)
news:comp.sys.prime could tell us, but I'm guessing it must have been
one of the big boxes. We had AMLCs on our 25/30, But by the time of the
850 an 950 I think they were using ICS boards. So - we got our first
rabbit mid-83? that was post-AMLC I would guess. Of course, the old
machines were still around so AMLCs would still have been around, but
they would have been disappearing by then.

I'd love to get my hands on an old rabbit, but I doubt there are many
about :-(

Cheers,
Wol

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Scott Richardson
Sent: 23 February 2004 04:39
To: U2 Users Discussion List
Subject: Re: [OT] Pr1me Hardware question

Wow. I appreciate the OT, Dawn!

I used to work at Pr1me, started in manufacturing in 1979,
doing incoming quality control on their multi-layered printed
circuit boards. This board may even have a stamp on it, showing
who actually tested the board through the process. I moved up to
Marketing Technical Support at the Corporate Marketing Support
Center from manufacturing in 1981, and was there until 1983 -
when I went off to join Pr1me VAR MADIC, (manufacturing
applications package), written in Pr1me INFORMATION.
I ended up coming back to Prime in 1986, after MADIC had
"business difficulties", and was a founding technical member
of the PICK to Pr1me INFORMATION Conversion &
Reseller Support Center.

I would dare to say that you are looking a an AMLC -
Asynchronous Multi Line Controller card. Serial tty I/O board,
four connectors of four Asynch ports per, yeilding 16, (0-15),
total ports. I think 9600 baud maximum, (maybe 19.2K?).
If I remember correctly, these are four layer, maybe 6 layers, of
substrate/circuitry.  The 0-3, 4-7, 8-11, 12-15 side would be
sticking out the back, where cable assemblies would connect up
to them. The opposite side of the board - with two longer gold
tipped fingers connectors are, would be plugged into the
"backplane", which is how all the boards would talk to each other;
Memory at the top,CPU board sets next, disk controllers &
communications controllers next, and asynchronous termial
controllers next. Of course, power supplies at the base.
These backplanes were basicially printed circuit boards, yet
some of them still had "wire-wrapped" connections on them.

These would be the boards that handled serial tty RS232 ports
to "dumb terminals", BeeHives (PT-45), Perkin Elmer OWL,
PT200's in the later years.

Do you recall what model of Pr1me 50 Series it came from?
What company were you working at that was using it?

I hope this helps provide you with some historical technical
tidbits to share with the young whippa-snappers!

Regards,
Scott Richardson
Senior Systems Engineer / Consultant
Marlborough, MA 01752
Email: [EMAIL PROTECTED]
Web: http://home.comcast.net/~CheetahFTL/CC
eFax: 208-445-1259



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