ID'ing Q-Bus cards.

Andrew Back andrew at smokebelch.org
Fri Jan 2 11:43:54 CST 2009


On (08:00 02/01/09), Glen Slick wrote:
> On Fri, Jan 2, 2009 at 5:30 AM, Andrew Back <andrew at smokebelch.org> wrote:
> > I have a PDP11/53, which on inspection contains 2x M7651:
> >
> > - One cabled to a same-sized card made by Logica and marked 3490/300
> > - One cabled to a double-sized card marked 3350/304 (assuming Logica)
> >
> > Both these cards appear to be SCSI controllers, but does anyone know any
> > more about them? And I'm wondering if there might be some hoops to jump
> > through in their use, E.g. only support certain drives or require a patched
> > O/S.
> >
> 
> The first reference you should check is pdp11-field-guide.txt which
> lists the M7651 as the  DRV11-WA General-Purpose DMA Interface.  You
> can find the manual by searching for EK-DRVWA-UG
> 
> The other boards to which they are attached are most likely special
> purpose application boards and not any sort of general purpose SCSI
> controllers.

The only other board I've not ID'ed is an Emulex CS-041021, and the machine
was hooked-up to another cabinet containing a Fujitsu M2263SA SCSI drive.
The Logica boards terminate on the cab at 50 pin D types, one male and one
female. The Emulex terminates at a 34 pin IDC connector.

Andrew

-- 
Andrew Back
a at smokebelch.org


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