Introduction and RK05J Drive cabling

Joshua Stetson saburwulf at gmail.com
Fri Jan 22 17:27:02 CST 2016


Thank you, I won't ask on how you found this out, but I'll make sure to
have the terminator before running even a single drive! :)

On Fri, Jan 22, 2016 at 2:29 PM, tony duell <ard at p850ug1.demon.co.uk> wrote:

>
> > Ideally I would like to find the following:
> > 7009026 Cable which is two ribbon cables with a M933B or C flip chip on
> the
> > other end
> > The interface cable between the two drives: BC11A
> > The terminator card M930
> >
> > At minimum, I'm pretty sure I'd only need the first cable to run one of
> the
> > drives, but I'd appreciate any help from those who have more experience.
>
> You must put the terminator in, even on a single drive system. I've had
> problems
> where you get glitches on unterminated lines and the drive can end up
> writing
> when it shouldn't. Don't ask...
>
> The M930 and BC11 should be easy to find, they are actually the same as
> the bits
> used on PDP11 Unibus connections.
>
> -tony
>


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