Diversified Technology CAT904 80286 single board PC

Tue Mar 16 14:12:28 CDT 2021

good job

Le mar. 16 mars 2021 à 20:10, Tom Uban via cctalk <cctalk at classiccmp.org> a
écrit :

> Ok. Thanks for verifying that info, I will try changing the BIOS setting.
> I do need to replace the
> Dallas RTC as well.
>
> On 3/16/21 12:57 PM, Jonathan Haddox via cctalk wrote:
> >  I've got a Diversified Tech 286 SBC as well and was able to switch to
> 3.5 floppies by modifying the BIOS settings. Mine has the Dallas Real Time
> Clock chip and the battery was dead so the BIOS settings weren't preserved
> after a reboot. Fortunately I obtained a replacement chip available on ebay
> to fix that issue. I haven't got a manual to share, but it's a neat little
> board.
> >
> > Jonathan
> >      On Tuesday, March 16, 2021, 12:00:02 PM CDT, <
> cctalk-request at classiccmp.org> wrote:
> >
> >  Send cctalk mailing list submissions to
> >     cctalk at classiccmp.org
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> > than "Re: Contents of cctalk digest..."
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> >
> > Today's Topics:
> >
> >   1. VAX rom patches - VAXstation 2000 SCSI boot, KA420 > 1GB boot
> >       (David Brownlee)
> >   2. Re: Diversified Technology CAT904 80286 single board PC
> >       (david raingeard)
> >   3. Re: PDP-10 I/O notes (Lars Brinkhoff)
> >   4. who collects modems? (Tom Uban)
> >   5. Re: Any info on a Western Peripherals DC-230 disk controller?
> >       (Jay Jaeger)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Mon, 15 Mar 2021 18:36:23 +0000
> > From: David Brownlee <abs at absd.org>
> > To: rob at jarratt.me.uk,  "General Discussion: On-Topic and Off-Topic
> >     Posts" <cctalk at classiccmp.org>, port-vax List <port-vax at netbsd.org>
> > Cc: Malte Dehling <mdehling at gmail.com>
> > Subject: VAX rom patches - VAXstation 2000 SCSI boot, KA420 > 1GB boot
> > Message-ID:
> >     <CAGN_6pbBzUQDJP-YiCQRZsaNOsGye1oWQ_ULyvavEd52ZrYp2Q at mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > I had some extra A4 pages with a VAXstation 2000 manual which covered
> > a preview PK2K kit for VMS, bootloader and ROM to allow use of the
> > VAXstation 2000 SCSI controller for more than just tapes.
> >
> > Rough scan at http://sync.absd.org/vax/VAX-PK2K-preview-kit.pdf (the
> > originals will be sent to someone who can do a better job)
> >
> > The pages led me to http://ftp.gwdg.de/pub/vms/ which includes some
> goodies:
> > - http://ftp.gwdg.de/pub/vms/pk2k - uVAX-2k SCSI patches with source
> > for boot roms, VMB & VMS
> > - http://ftp.gwdg.de/pub/vms/ka420 - ROM patches for KA420/KA430 boot
> > from >1GB disks
> > - http://ftp.gwdg.de/pub/vms/dk-552/ - VMS 5.2 patch to allow to
> > accept more SCSI disk devices
> >
> > (Starting a new thread in case there is (slightly) more general
> > interest for anyone interested in using the onboard uVAX-2K SCSI
> > controller more more than tapes (OK, OK, for anyone not running NetBSD
> > on their uVAX-2K interested in etc etc) - have cross posted to cctalk
> > & port-vax - hopefully not violating any conventions there)
> >
> > David
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Mon, 15 Mar 2021 16:41:54 +0100
> > From: david raingeard <david.raingeard at gmail.com>
> > To: Tom Uban <tom at figureeightbrewing.com>,  "General Discussion:
> >     On-Topic Posts" <cctech at classiccmp.org>
> > Subject: Re: Diversified Technology CAT904 80286 single board PC
> > Message-ID:
> >     <CAFvDS1SvQZFE_dzGQaheyLRpFqh-ZqFZyyWpBaMg_D22gZ+8kA at mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > i rather do  what doe with ibm dos
> >
> > Le lun. 15 mars 2021 ? 16:23, Tom Uban via cctech <cctech at classiccmp.org>
> a
> > ?crit :
> >
> >> It dawned on me that I probably just need to change a BIOS setting. I
> >> haven't dealt with PCs in so
> >> long I've forgotten what to do...
> >> I would still like to find a manual if someone has one.
> >>
> >>> I have a Diversified Technology CAT904 80286 single board PC in a
> system
> >> with a 5.25" floppy drive
> >> running DOS.
> >>> I would like to switch the system to use a 3.5" drive and am wondering
> >> if anyone has a manual for
> >> the dip switch settings for this board or if I can simply add a 3.5"
> drive
> >> as a 2nd device on the
> >> floppy cable (guessing not without switch changes)?
> >>> --tnx
> >>> --tom
> >>
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Tue, 16 Mar 2021 06:04:44 +0000
> > From: Lars Brinkhoff <lars at nocrew.org>
> > To: Don Stalkowski via cctalk <cctalk at classiccmp.org>
> > Subject: Re: PDP-10 I/O notes
> > Message-ID: <7wzgz3zlab.fsf at junk.nocrew.org>
> > Content-Type: text/plain
> >
> > Don Stalkowski wrote:
> >> For what it's worth I've posted some notes on PDP-10 I/O from a course
> >> taught by Mike Bennett at UWO in the early 1970s.
> > Thank you!
> >
> > Interesting to see the DECtape file structure format.
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Tue, 16 Mar 2021 09:48:33 -0500
> > From: Tom Uban <tom at figureeightbrewing.com>
> > To: "General Discussion: On-Topic and Off-Topic Posts"
> >     <cctalk at classiccmp.org>
> > Subject: who collects modems?
> > Message-ID:
> >     <d22a7559-5c13-28e5-eec0-b1587b5c5a79 at figureeightbrewing.com>
> > Content-Type: text/plain; charset=utf-8
> >
> > Clearing out stuff at my space, I have the following modems:
> >
> > NEC UltraLite-Series Image Modem Plus w/box
> > CTS Datacomm 2424 ADA modem w/box
> > Scout Plus External Data/Fax modem w/box
> > Digital DF03 modem
> >
> > Any offers?
> >
> > --tom
> >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Tue, 16 Mar 2021 11:23:28 -0500
> > From: Jay Jaeger <cube1 at charter.net>
> > To: Josh Dersch via cctalk <cctalk at classiccmp.org>
> > Subject: Re: Any info on a Western Peripherals DC-230 disk controller?
> > Message-ID: <0877749a-9d01-466e-9e59-854977e13808 at charter.net>
> > Content-Type: text/plain; charset=utf-8; format=flowed
> >
> > I may have a little info - but the info is in storage, and it is just a
> > "Western Peripherals Instruction Reference Card", apparently referring
> > to the DC-230, PDP-11 and TC-130 (the latter being a tape controller,
> > for which I do have some doc.)
> >
> > Once the weather warms up again - say, maybe this weekend, I'll trot off
> > to storage, bring it back and scan it.
> >
> > Back in the 1970's the UW Madison CS Department's 11/20 had a 3rd party
> > disk controller of some sort - one pack removable, one fixed, but I
> > don't remember who made it (might have been Wangco).
> >
> > JRJ
> >
> > On 3/12/2021 5:02 PM, Josh Dersch via cctalk wrote:
> >> Any ideas what this disc controller is?
> >>
> >>
> https://www.ebay.com/itm/PDP-11-Backplane-Western-Peripherals-DC-230-Disk-Controller-DEC-Digital-PDP/353417412426
> >>
> >> Can't find much about this on the 'net, other than that it was a
> controller
> >> for Diablo/Pertec style drives -- no idea if it's an RK11 clone or
> >> something else entirely. Looks to be suitable for a PDP-11/20 given the
> >> little notch missing from the side there, and the lack of a separate
> power
> >> harness for the backplane.
> >>
> >> - Josh
> >>
> >
> > End of cctalk Digest, Vol 78, Issue 16
> > **************************************
> >
>
>