Re: Disk ][ (Notice I spelled it right? :) ) Query...

[mjmahon@aol.com (Michael J. Mahon)]

Bill Garber wrote:

>Don Bruder wrote:
>
>> Ehhh.... I'm not certain that's going to be true. I *VERY* strongly
>> suspect (but can't be 100% sure without closer eyeballing) that I'll be
>> able to do a "normal" hookup to the "drive 1" pins on the Disk ][
>> controller, then run a jumper from one pin (Which one is yet to be
>> determined) of the "drive 2" pins, and feed that into the cable, and
>> from there, be able to run two drives daisy-chained just like I'd be
>> able to do with a "proper" controller for these kind of drives. I *MAY*
>> turn out to be wrong on that score, but as of right this instant, I
>> suspect I'm on the right track.
>
>They go 1-1,2-2............19-19,20-20. Of this I am sure. I have done
>this as a goof. I believe I tried to daisy chain the second drive and it
>wouldn't let the signal thru, in fact IIRC, neither drive worked with
>them daisy chained. You have to run a separate cable to the second
>drive from the number 2 connector on the card. I know it will work.
>Similar to the IIc, the 20 line ribbon cable is parallel. If you have a
>Disk II drive, try attaching the removed 20 to 19 pin cable to the
>Disk II. That should work on the other controller as well.

If Don hooks up the second drive select line to that unused
wire, then it will daisy-chain just fine.  That is the only difference
between the two disk controller cards (except for the connectors).

-michael

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