Previous message: Wire list for the RKV11-D Qbus RK05 controller backplane anywhere?

Noel Chiappa jnc at
Wed Feb 12 11:28:28 CST 2020

    > From: Jay Jaeger

    > Yeah, info does seem to be scarce.  Not even in my LEVAX fiche set.

My fiche set has the Technical Manual, and also (in the wirelist
section) the wirelist.

Not sure how to get it to you, though. I stuck it in my industrial-grade
scanner at its highest resolution; no go. I suppose I could take photos
of it displayed on my fiche reader?

Or is there some device I can buy which is less than a zillion dollars which
can scan fiche? There are a number of things in my set (e.g. the BA11-N Tech
Manual) which aren't online, and would be useful to have.

    > That fourth card (M7268) is apparently a connector card for the Q-Bus
    > and drive bus.

Yes, but actually there are 6 cards: the M7269 is a dual card which goes
into the QBUS backplane, and the M993-YA which goes into the first RK05,
to convert from the two flat cables which come from the M7268.

    > From: Al Kossow

    > Also, it is only 18 bits.

Actually, only 16-bit DMA addresses, I'm pretty sure.


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