Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!ginosko!uunet!ingr!b11!goodloe
From: goodloe@b11.ingr.com (Tony Goodloe)
Newsgroups: comp.dcom.lans
Subject: Re: Grounding Ethernet coax lines.
Message-ID: <6161@b11.ingr.com>
Date: 10 Oct 89 19:59:37 GMT
References: <3824.25292578@zeus.unl.edu> <2128@avsd.UUCP> <27682@amdcad.AMD.COM>
Organization: Intergraph Corp. Huntsville, AL
Lines: 18

In article <27682@amdcad.AMD.COM>, rpw3@amdcad.AMD.COM (Rob Warnock) writes:
> ... situations where there are MANY [is >10 many enough?] volts difference
> between two adjacent buildings

When I was taking a noise reduction class (ground loops, shielding, etc)
in school, our prof mentioned that in the old EE building they had a
heck of time with some equipment. They traced it down to a 60 VOLT
difference in ground from one end of the building to the other. WOW!
Speaking of grounding, ethernet, and such, a tip for installers that I've
heard. If you are seperating two pieces of coax at a barrel, don't hold
one connector in each hand as you pull it apart. Hold onto the
insulation on the cable. If you do have a large potential difference
across the ends of the coax, the path to ground that used to be through
the barrel is now through YOU!

Thanks for taking the time to clear up the misinformation.

tony