[Coco] Fwd: Disto 4-in-1 card manual

[Gene Heskett]

On Friday 19 January 2007 00:22, Alex Evans wrote:
>I just received this inquiry.  If anyone can help I am sure that it
>will expand the community a bit.
>
>Begin forwarded message:
>> Hello Sir,
>>   I found your web page and was wondering if you have the booklet
>> that came with the 4 in 1 add on card. I have a SCII with one, I
>> found my SCII booklet and my C-Dos booklet, but cant find anything
>> on this one to know how to hook it up to a hard drive. I would
>> appreciate anything you have for it. I am also willing to share
>> anything I might have for the coco's.
>>
>> Thank You, Michael Rosen

Humm, did he get the scsi cable that goes with it?  Its a bit of an odd 
bird because the interface in the 4n1 is only a 34 pin connector, exactly 
the same style as a later floppy header.  To get to the 50 pin interface 
on the drive, the ribbon cable is split into 2, 17 wire sections, and is 
then crimped into the outside 17 contacts on each end of the 50 pin 
connector that plugs into the drive.

This, because the tp wire isn't there in the cable, requires the terms on 
the drive be enabled, and powered from the drive, so the drive will need 
to have that jumper enabled.  And obviously the terms on the 4n1 must be 
in place and powered.

Software will be 'scsisys' and I don't know where it can be had other than 
on my drive, and getting it off and to him could be a problem.  Floppy 
support is disappearing from linux just as it has from the machines on 
the shelf at circuit city. :(

The drive, due to the missing wires in the center, must be addressed in 
the range of 0-3, not 0-7.  And again, because of the missing wires 
prevent the handshaking that scsi drives sharing a cable depend on, its 
limited to only one drive.  I hear that someone added the missing cable 
between the drives only, and made 2 drives work, but I don't recall who 
said that now.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
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Copyright 2007 by Maurice Eugene Heskett, all rights reserved.