From: athornton at gmail.com (Adam Thornton)
Subject: [COFF] 52-pin D-Sub?
Date: Thu, 27 Feb 2020 19:12:30 -0700 [thread overview]
Message-ID: <CAP2nic2LwaR2ZfrxMQrmb7N7KUXPKTmHg0ERj17xXkXZiZ3xzw@mail.gmail.com> (raw)
In-Reply-To: <905CE999-5601-4521-847B-B2146C60B564@serissa.com>
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Yeah, 0.075" pin centers, does appear to be the ITT Cannon part.
Now what experiment used them, and _why_ (I mean, surely 68-pin SCSI would
have done the trick as well and been muuuuuuch cheaper), I don't know.
Adam
On Thu, Feb 27, 2020 at 6:37 PM Lawrence Stewart <stewart at serissa.com>
wrote:
> Huh. New to me too, but Digikey links to the datasheets, and they really
> do mean DB.
> They go up to DD100. They are called “double density”.
>
> This reminds me of the circa 1990 “HIPPI” interface, or high performance
> parallel interface. They typically ran at 50 MB/sec. The connectors were
> two-row 100-pin D style. See
> http://www.elpeus.com/scsi-cables/100pin-scsi-cable-hippi/3m-100pin-male-to-100pin-male-scsi-cable-hippi/ for
> example.
>
> We used these cables and connectors on the first Alpha machines at Digital
> to connect the 3Max front end processor to the ECL based Alpha
> Demonstration Units, although the protocol was different. The connector
> was about the biggest that would fit on a TurboChannel I/O card.
>
>
> On 2020, Feb 27, at 7:04 PM, Dave Horsfall <dave at horsfall.org> wrote:
>
> On Thu, 27 Feb 2020, Adam Thornton wrote:
>
> I recently have pulled out of the trash a plugboard with a male and a
> female D-Sub 52 connector. 3 rows of pins, 17-18-17. I took the
> connectors off the board: there's nothing back there, so this thing only
> ever existed so you could plug the random cable you found into it and its
> friends to see what the cable fit.
>
>
> That would be something like a DD-52P (certainly not a DB-52P!).
>
> I can't find much evidence that a 52-pin D-Sub ever existed.
>
>
> Well, Digikey seem to have them:
>
>
> http://www.digikey.com/product-detail/en/itt-cannon-llc/2DB-52P/2DB-52P-ND/4734668
>
> No photo, though...
>
> -- Dave_______________________________________________
> COFF mailing list
> COFF at minnie.tuhs.org
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>
>
> _______________________________________________
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next prev parent reply other threads:[~2020-02-28 2:12 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-27 23:37 athornton
2020-02-28 0:04 ` dave
2020-02-28 1:37 ` stewart
2020-02-28 2:12 ` athornton [this message]
2020-02-28 4:12 ` dave
2020-02-28 4:18 ` dave
2020-02-28 14:11 ` clemc
2020-02-28 14:34 ` athornton
2020-02-28 21:23 ` dave
2020-02-28 16:35 ` krewat
2020-02-28 21:28 ` dave
2020-02-28 21:44 ` clemc
2020-02-28 21:58 ` dave
2020-02-28 22:20 ` clemc
2020-02-28 23:22 ` pechter
2020-02-29 13:12 ` emu
2020-02-29 15:45 ` krewat
2020-02-29 15:49 ` clemc
2020-02-28 22:38 ` pechter
2020-02-28 22:05 ` drb
2020-02-28 22:28 ` clemc
2020-02-28 22:26 ` pechter
2020-02-28 22:36 ` clemc
2020-02-28 23:40 ` pechter
2020-02-29 16:52 ` clemc
2020-02-28 23:54 ` pechter
2020-02-29 9:59 rudi.j.blom
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