Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!ncar!umigw!mthvax!wb8foz
From: wb8foz@mthvax.cs.miami.edu (David Lesher)
Newsgroups: sci.electronics
Subject: UPS's, printers & fried equipment
Keywords: references
Message-ID: <1990Sep26.013510.23949@mthvax.cs.miami.edu>
Date: 26 Sep 90 01:35:10 GMT
Reply-To: wb8foz@mthvax.cs.miami.edu (David Lesher)
Distribution: na
Organization: NRK Clinic for habitual NetNews Abusers
Lines: 21

My esteemed employer is planning on adding a bunch of 286 machines
to an existing UPS system. The problem is, that because of the
limited capacity of the UPS, they want to run ONLY the PC's off
of it, and will run the laser printers off of the unregulated,
un-isolated ground, unprotected power.

I'm of the opinion that the first T-storm (if not sooner!) will blow up
lots of boxes with this scheme, (the runs in question are long --
hundreds of feet) both from (line) induced voltage differences and
ground loop problems. But the folks above, non-technocritters, don't
believe me.

Can anyone on the net *CITE SOURCES* I can use to strengthen my case?
This could, for example, include a Tech Note from HP's Laserjet
division, or such, or a section of the NEC. Note *I* don't need
hearsay, I need published tomes to carry in.
-- 
A host is a host from coast to coast.....wb8foz@mthvax.cs.miami.edu 
& no one will talk to a host that's close............(305) 255-RTFM
Unless the host (that isn't close)......................pob 570-335
is busy, hung or dead....................................33257-0335