In message <[EMAIL PROTECTED]>, Dexter 
<[EMAIL PROTECTED]> writes
>On Wed, 17 Apr 2002, Roy Wood wrote:
>
>> It is all explained in Keith Mitchell's hardware docs. Every other line
>> in the ribbon is an earth. By twisting lines 10 through 13 you are
>> swapping the drive 0 with the drive one signal with the earth line as a
>> pivot. Quite what the PC one does is not clear.
>
>As I understand it, there are two drive select lines, allowing selection
>of one from 4 drives, so on a PC cable they flip those, and their grounds.
Ah so they flip two grounds even though they are common. Makes sense in 
a PC kind of way
-- 
Roy Wood
Q Branch, 20 Locks Hill Portslade. Sussex. BN41 2LB. UK
Tel : +44 (0)1273 386030 Fax : +44 (0)1273 430501 (New number!)
Mobile +44(0)7836 745501
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