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<font face="Lucida Sans">The most direct way to create images on the
Zip media might be to get a USB Zip drive. Use SIMH to create a
bootable image on OS/PC of your preference as John suggests. Then
do a block by block (dd or equivalent) transfer of the image to
the Zip Media. Presuming that the SCSI controller is DEC MSCP -
the DU handler in RT11 is just looking for sequential (logical)
disk blocks. <br>
<br>
I see various prices around for these drives, starting around
$40. <br>
<br>
You also might want to check out
<a class="moz-txt-link-freetext" href="https://classiccmp.org/cctalk.html">https://classiccmp.org/cctalk.html</a>. Lots of advice on these types
of systems to be found there. <br>
<br>
Jerry<br>
</font><br>
<div class="moz-cite-prefix">On 10/10/22 11:48 PM, John Hudak wrote:<br>
</div>
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cite="mid:CAE=viVohj4ryRj70T_tre1_f2GdrY+UkYRH9pwK6NNHXT6y1BQ@mail.gmail.com">
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<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" class="moz-txt-link-freetext">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>
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Oct 10, 2022 at 7:01
PM Steve Hatle <<a href="mailto:steve.hatle@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">steve.hatle@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
recently came into an 11/23+ machine. It has a KDJ11-B CPU
board, a <br>
MSV11-Q memory board, a SCSI board that was driving a SCSI Zip
drive for <br>
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 <br>
connection, so I need to figure out how to get a terminal
connected to <br>
the J1 SLU connector. This is 9 pins, but I can't seem to find
<br>
definitive info on what the pin assignments are here, and
exactly which <br>
pin is #1. Once I know these things, I'm sure I can make a
cable with <br>
TX/RX/GND to get a console going. Anyone have pointers? I
found a set of <br>
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. <br>
I didn't receive any of the Zip media previously used, or any
<br>
documentation for the machine. I'm guessing I can use SIMH and
perhaps <br>
build a bootable Zip or other SCSI drive, but that will need
to wait <br>
until I can at least talk to the thing. Lacking any other
serial ports, <br>
I don't think I'll be able to take advantage fo the TU58
emulator or <br>
other solutions.<br>
<br>
Looking forward to getting this guy up and running!<br>
<br>
_______________________________________________<br>
rescue list - <a
href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br>
</blockquote>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
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