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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head><body text="#000000">I was coming to the same conclusion that
this could/should be considered an 11/73, since the KDJ11-B always seems
to referred to as the board in an 11/73. Totally likely that it was
upgraded in the "original" 11/23+ chassis some time in the past.<br>
<br>
I will pull out one of the cards for the laser cutter and get pics up
soon. Since I'll be in there, I'll take photos of the Zip interface card
as well.<br>
<span>
</span><br>
<blockquote type="cite"
cite="mid:9aa5ca8d-8def-2c93-eb62-3264f28d7470@neurotica.com"
style="border: 0px none ! important;">
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style="margin:30px 25px 10px 25px;"><div
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style="display:inline-block;white-space:nowrap;vertical-align:middle;width:49%;">
<a style="color:#485664
!important;padding-right:6px;font-weight:500;text-decoration:none
!important;" href="mailto:mcguire@neurotica.com" moz-do-not-send="true">Dave
McGuire</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">October
11, 2022 at 10:56 PM</span></font></div> </div></div>
<div xmlns="http://www.w3.org/1999/xhtml" class="__pbConvBody"
__pbrmquotes="true"
style="color:#909AA4;margin-left:24px;margin-right:24px;">On 10/11/22
13:35, John Hudak wrote:
<br><blockquote type="cite">Thanks for the clarification Dave.B About
the bulkhead, I was not
referring to the on-board connectors on the KDJ11-B. When the OP
mentioned 'bulkhead' I thought he meant the circuit board that contains
DB9, DB25, etc. which is usually bolted to the chassis.
<br></blockquote>
<br> Ah, gotcha. In DEC parlance, that's the "cabinet kit". What
probably happened is that it was originally an 11/23, and was upgraded
in-chassis to an 11/73, which uses a (slightly) different cabinet kit.
<br>
<br><blockquote type="cite">The link I
posted described the connections from the on-board SLU connector to the
bulkhead connector.B DEC had a number of bulkhead configurations on
their machines.B In any case, I re-read the OPs post and realized his
system does not have the bulkhead connector, on the two 10-pin Berg/IDC
connectors on board.
<br>To clarify things, the link I posted:
<br><a class="moz-txt-link-freetext" href="https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header">https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header</a>
<a class="moz-txt-link-rfc2396E" href="https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header"><https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header></a>
<br>describes the pinouts for the 10-pin Berg connector.
<br></blockquote>
<br> All understood. That's also a good reference.
<br>
<br> -Dave
<br>
<br>
</div>
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<a style="color:#485664
!important;padding-right:6px;font-weight:500;text-decoration:none
!important;" href="mailto:jjhudak@gmail.com" moz-do-not-send="true">John
Hudak</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">October
11, 2022 at 12:35 PM</span></font></div> </div></div>
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style="color:#909AA4;margin-left:24px;margin-right:24px;">
<meta http-equiv="content-type" content="text/html; charset=utf-8"><div
dir="ltr"><div>Thanks for the clarification Dave. About the bulkhead, I
was not referring to the on-board connectors on the
KDJ11-B. When the OP mentioned 'bulkhead' I thought he meant the circuit
board that contains DB9, DB25, etc. which is usually bolted to the
chassis. The link I posted described the connections from the on-board
SLU connector to the bulkhead connector. DEC had a number of bulkhead
configurations on their machines. In any case, I re-read the OPs post
and realized his system does not have the bulkhead connector, on the two
10-pin Berg/IDC connectors on board.</div><div>To clarify things, the
link I posted:</div><div><a
href="https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header"
moz-do-not-send="true">https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout#10_pin_header</a></div><div>describes
the pinouts for the 10-pin Berg connector.</div><div><br></div><div>John</div><div><br></div><div><br></div><div><br>
</div></div><br>
<br><fieldset class="mimeAttachmentHeader"></fieldset><br><div>_______________________________________________<br>rescue
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<a style="color:#485664
!important;padding-right:6px;font-weight:500;text-decoration:none
!important;" href="mailto:mcguire@neurotica.com" moz-do-not-send="true">Dave
McGuire</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">October
11, 2022 at 8:27 AM</span></font></div> </div></div>
<div xmlns="http://www.w3.org/1999/xhtml" class="__pbConvBody"
__pbrmquotes="true"
style="color:#909AA4;margin-left:24px;margin-right:24px;"> Just
expanding on a few points below.
<br>
<br>On 10/11/22 00:48, John Hudak wrote:
<br><blockquote type="cite">A nice system - Congrats.B This should keep
you entertained for hours.
<br>The bulkheads for console SLU differed according to what the machine
was
(Qbus, Unibus) and they varied within the backplane family.
<br></blockquote>
<br> Steve said he has a KDJ11-B processor board. This processor has
two
onboard SLUs which use the 10-pin connectors, not the 40-pins.
<br>
<br><blockquote type="cite">I think you will need to know the disk
type emulation the cpu is expecting to boot from.B This info is
contained in the boot proms and configured via the onboard jumpers.
<br></blockquote>
<br> There's virtually no chance of it being anything other than MSCP.
Several companies made Qbus SCSI host adapters; all of them (or nearly
so) implement MSCP.
<br>
<br><blockquote type="cite">Not sure how to get the images onto the zip
drive.
<br></blockquote>
<br> dd
<br>
<br><blockquote type="cite">To run BSD 2.x requires
separate I&D space and the usual upgrade was to exchange the 11/23
cpu
board for a 11/73 board.
<br></blockquote>
<br> Not quite. 2.11BSD, the last release, is the first release to
require split I/D space. 2.10BSD and prior will run on the 11/23.
<br>
<br> -Dave
<br>
<br>
</div>
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<a style="color:#485664
!important;padding-right:6px;font-weight:500;text-decoration:none
!important;" href="mailto:jjhudak@gmail.com" moz-do-not-send="true">John
Hudak</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">October
10, 2022 at 11:48 PM</span></font></div> </div></div>
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style="color:#909AA4;margin-left:24px;margin-right:24px;">
<meta http-equiv="content-type" content="text/html; charset=utf-8"><div
dir="ltr"><div>A nice system - Congrats. This should keep you
entertained for hours.</div><div>The bulkheads for console SLU differed
according to what the machine was (Qbus, Unibus) and they varied within
the backplane family.</div><div>Without having my notes in front of me,
the information on this wikipedia page is very helpful. From what I can
remember, this looks to be correct:</div><div><a
href="https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout"
moz-do-not-send="true">https://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout</a></div><div>The
pinouts on the various bulkheads show what pins on SLU connector/CPU
board to connect to. <br></div><div><br></div><div>Back in the day, I
designed and built my own SLU interface/bulkheads for our lab machines.
If I can find my notes, I'll update the info.</div><div>If you haven't
already, you should check out bitsavers for some very useful
documentation on the KDJ11-B. Specifically the KDJ11-B CPU Module Users
Guide EK-KDJ1B-UG-001</div><div>and</div><div>KDJ11-B CPU system
Maintenance EK-247AA-MG-001</div><div><br></div><div>Useful information
on how to configure the jumpers on the board, and set the baud rate for
the SLU. The joys of ODT are well explained in the second manual. The
User Guide does a good overview but the System Maint manual has more
detail</div><div><br></div><div>You can configure the CPU board to use
the onboard SLU as the console or another asynchronous serial card such
as the DLV11-J. Not sure what config you have. The manual for the
DLV11-J is also on bitsavers.</div><div><br></div><div>Software - I
can't help much here as my machines use RL02 and I have actual packs for
RT11 and RSX11. OS's can be loaded using SIMH in at least a couple of
ways. There is a TU-58 emulator via a serial line interface. As you
mentioned, you need to get the SLU working to use it. IIRC, there are
RT and RSX-11M versions (documents and compressed images , RL01 format I
think). I think you will need to know the disk type emulation the cpu
is expecting to boot from. This info is contained in the boot proms and
configured via the onboard jumpers.</div><div>Not sure how to get the
images onto the zip drive.</div><div>IIRC, the 11/23 could only run UNIX
v5, V6. To run BSD 2.x requires separate I&D space and the usual
upgrade was to exchange the 11/23 cpu board for a 11/73 board. <br></div><div>Good
luck</div><div>J</div><div> <br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><br>
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<a style="color:#485664
!important;padding-right:6px;font-weight:500;text-decoration:none
!important;" href="mailto:steve.hatle@gmail.com" moz-do-not-send="true">Steve
Hatle</a></div> <div
style="display:inline-block;white-space:nowrap;vertical-align:middle;width:48%;text-align:
right;"> <font color="#909AA4"><span style="padding-left:6px">October
10, 2022 at 6:00 PM</span></font></div> </div></div>
<div xmlns="http://www.w3.org/1999/xhtml" class="__pbConvBody"
__pbrmquotes="true"
style="color:#909AA4;margin-left:24px;margin-right:24px;">I recently
came into an 11/23+ machine. It has a KDJ11-B CPU board, a
MSV11-Q memory board, a SCSI board that was driving a SCSI Zip drive for
boot media, and two cards that were used to control a laser cutter.
<br>
<br>First issue is that there is no "bulkhead" to bring out the console
connection, so I need to figure out how to get a terminal connected to
the J1 SLU connector. This is 9 pins, but I can't seem to find
definitive info on what the pin assignments are here, and exactly which
pin is #1. Once I know these things, I'm sure I can make a cable with
TX/RX/GND to get a console going. Anyone have pointers? I found a set of
schematics but what I think is showing J1 doesn't make sense to me.
<br>
<br>Then, I need to figure out how to get software set up to run the
thing.
I didn't receive any of the Zip media previously used, or any
documentation for the machine. I'm guessing I can use SIMH and perhaps
build a bootable Zip or other SCSI drive, but that will need to wait
until I can at least talk to the thing. Lacking any other serial ports,
I don't think I'll be able to take advantage fo the TU58 emulator or
other solutions.
<br>
<br>Looking forward to getting this guy up and running!
<br>
</div>
</blockquote>
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