Re: Ribbon Cable

From: silverdr_at_wfmh.org.pl
Date: Tue, 17 Dec 2013 19:26:25 +0100
Message-Id: <92A34A8E-94F4-48B9-B690-82230CE0B1B9@wfmh.org.pl>
On 2013-12-17, at 19:18, Gerrit Heitsch <gerrit@laosinh.s.bawue.de> wrote:

>> That’s what they did in the 50 wire (8 bit) SCSI and 40 wire (16 bit...) PATA. Then there was still the 80-wire cable with even more ground lines to go into 66MiB/s...
> 
> The 40wire PATA cable does not seperate each signal by a ground wire. The 16 data signals are all on wires next to each other. That's why the cable had to be short and 16MB/sec was the maximum you could get out of it. That was fixed with the 80wire cables. Still using a 40pin plug though.

Yes, you’re as always right :-) My bad. I recall the whole row of pins being grounded when I checked the pinouts some twenty years ago and I thought it was in 40pin PATA. But it must have been 50pin SCSI. Anyway - I stand corrected.

-- 
SD!
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Received on 2013-12-17 19:01:29

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