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From: charles%hpcvca.cv.hp.com@cunyvm.cuny.edu
Newsgroups: comp.sys.amiga
Subject: Re: Apple SCSI not compatible with standard SCSI?
Message-ID: <5503@nigel.udel.EDU>
Date: 6 Dec 89 17:38:50 GMT
Sender: mmdf@udel.EDU
Lines: 20

>      Hummm.  I am in the process of hacking together a 50pin-to-25pin
> connector for a StarDrive I recently got.  The target drive (my
> roomate's) is a miniscribe 8425S.  Is this drive differential?

No.  SCSI is not differential.  It merely (most of the time)
interdigitates signals and grounds in the 50 wire ribbon cable.
Sort of a poor man's differential drive.

> If not, how often is differential drive used in the REAL world?  I
> have a feeling that this would only be used on  really high-end
> drives, much as professional audio uses balanced connectors, and
> consumer stuff only uses single-ended.
>                Dave Williams
>                  dawill@hubcap.clemson.edu

Rarely.  Don't worry about it.
--
        Charles Brown   charles@cv.hp.com or charles%hpcvca@hplabs.hp.com
                        or hplabs!hpcvca!charles or "Hey you!"
        Not representing my employer.