RK05 interfacing to unibus PDP-11 (was RK05 stuff)

From: Paul Koning <pkoning_at_equallogic.com>
Date: Tue Jul 20 08:12:22 2004

>>>>> "Tony" == Tony Duell <ard_at_p850ug1.demon.co.uk> writes:

>> I looked in my 11/34 CPU box. There's room for a 4-slot
>> backplane. I currently have two 9-slot backplanes. Can I use an
>> M9202 to connect the 9-slot backplane to the RK11-D 4-slot
>> backplane?


 Tony> I don;'t see why not. The M9202 has 2' of Unibus cable folded
 Tony> up inside to give a little delay. Otherwise it's the same as
 Tony> the M920. I think you can use either.

That rings a bell. The M9202 is needed sometimes instead of the M920
to spread out reflections. There's a pile of detail in
http://bitsavers.org/pdf/dec/unibus/UnibusSpec1979.pdf

       paul
Received on Tue Jul 20 2004 - 08:12:22 BST

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