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From: sukenick@sci.ccny.cuny.edu (SYG)
Newsgroups: sci.electronics
Subject: Re: low-level signals and long cables
Message-ID: <1990Apr13.171407.23606@sci.ccny.cuny.edu>
Date: 13 Apr 90 17:14:07 GMT
References: <22845.2623bae8@kuhub.cc.ukans.edu> <16120002@col.hp.com>
Organization: City College of New York - Science Computing Facility
Lines: 9

Tri-axial connections and cable are supposed to be best for preventing noise.
One lead is for the signal, the other wire is for the ground, and the shield
doesnt carry current and is connected at one end only to either ground or a low 
impedance potential close to the potential on the signal wire ("guard").  If you
really want to get fancy, there is dual shielded cable in which you can use the
inner shield as a guard and the outer as a ground shield.

Now the question I have is:  Is there a perfered method of connecting
the shield (ie: connect at signal out end or at signal in?)