Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site umcp-cs.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!lll-crg!gymble!umcp-cs!chris From: chris@umcp-cs.UUCP (Chris Torek) Newsgroups: net.dcom Subject: Re: lightning, PACXs and computers (followup) Message-ID: <1242@umcp-cs.UUCP> Date: Wed, 14-Aug-85 22:55:39 EDT Article-I.D.: umcp-cs.1242 Posted: Wed Aug 14 22:55:39 1985 Date-Received: Mon, 19-Aug-85 04:46:08 EDT References: <1397@islenet.UUCP> <29116@lanl.ARPA> <1028@ulysses.UUCP> <1831@ecsvax.UUCP> <1465@islenet.UUCP> Organization: U of Maryland, Computer Science Dept., College Park, MD Lines: 11 >... All Computer equipment and auxiliary racks within a room should >be securely grounded to a single point with generous-size braided >ground straps. It seems to be a good idea to tie down all incoming >terminal grounds (RS232 pin 7) to that same point. . . . Everything I thought I knew about grounding says you never tie signal ground (pin 7) to frame ground. Am I wrong, or is this a Big Mistake? -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251) UUCP: seismo!umcp-cs!chris CSNet: chris@umcp-cs ARPA: chris@maryland