Rookie PDP help needed again...

From: Aaron Christopher Finney <aaron_at_wfi-inc.com>
Date: Tue Oct 6 13:18:15 1998

Thanks for the other responses about the cards, I think I have all the
Plessey clone cards identified with the DEC models.

However, I am a little confused on my CPU board identification. The board
is an M8186, which I have searched on and found to be a KDF11-AA. Or
KDF11-AB. Or KDF11-AC. The problem is that I can't find any revision code
on the board. To add to the confusion, the original configuration sheet in
the case lists the CPU board as a KDF11-HF, of which I haven't been able
to find any info at all. Does anyone have any info on this CPU, or can you
tell me how to identify which board it actually is?

Also, I have looked everywhere for a CPU/OS matrix and haven't found it.
Could someone provide me with a URL or just a quick hand-rolled list of
what versions of which OS run on which processor?

The multifunction board is Plessey #MFV11A; same as DEC MXV11A? I tried to
make a console cable using the pinouts on the sunsite PDP-11 page with no
success, setting the terminal at 4800baud. Is there something I'm missing
here, or can someone suggest how to wire the cable? I just arranged a
loner scope (my Tek is basically dead), so I'll start going pin-by-pin
until I figure it out, but a "here's how to wire the cable" would sure
help a lot.

Finally, is there anyone who remembers these clones? Does anyone have
_any_ documentation on them at all? Anything really different from a
standard DEC PDP-11? The front panel calls it a "Plessey Periperal Systems
- Micro II." It has 6 switches on the panel: write protect switches for
the two internal 8" floppies, the cpu halt/enable switch, a boot switch,
an LTY on/off switch, and the power switch. Any info at all would be
greatly appreciated.


I feel like I've just stepped into the pages of a wild adventure book...


Aaron
Received on Tue Oct 06 1998 - 13:18:15 BST