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Message-ID: <4FBE499D.2090509@laserlinc.com>
Date: Thu, 24 May 2012 10:45:49 -0400
From: Joshua Lansford <Joshua DOT Lansford AT laserlinc DOT com>
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To: geda-user AT delorie DOT com
Subject: [geda-user] Chassis ground vs Circuit ground
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Reply-To: geda-user AT delorie DOT com

Hello.
    I have an Ethernet Jack with a separate chassis ground.  The grounds 
connect by zero ohm resistors beside the jack.  Supposedly this keeps 
noise from following the cable onto board.  I saw somewhere not connect 
chassis and  together on the board but though the enclosure.  The card 
with plated edges slides into a metal extrusion.  Should both edges be 
chassis ground or should one be circuit ground?   This supposedly keeps 
a DC difference from developing but dissipates noise.  What are your 
opinions about how to deal with chassis ground vs circuit ground?
~Joshua