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Groups > comp.os.linux.misc > #17063
| From | "Carlos E.R." <robin_listas@invalid.es> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) |
| Date | 2016-03-18 20:21 +0100 |
| Organization | Netfront http://www.netfront.net/ |
| Message-ID | <331urc-ij5.ln1@Telcontar.valinor> (permalink) |
| References | (6 earlier) <ncempu$hfh$1@dont-email.me> <ncenoq$mgt$1@dont-email.me> <c4crrc-agg.ln1@Telcontar.valinor> <ncgr7t$uft$1@news.albasani.net> <nch74q$13s$1@dont-email.me> |
On 2016-03-18 16:33, William Unruh wrote: > On 2016-03-18, The Natural Philosopher <tnp@invalid.invalid> wrote: >> Yet I saw an RS232 destroyed by hot plugging.. >> >> WE worked it out, finally. The laptop on which the RS232 port resided, >> had a mains filter. The connected capacitors between mains live and the >> metal frame of the laptop and between neutral and the metal frame of the >> laptop. >> >> Unfortunately the laptop came with a two wire lead to the mains, with no >> earth, so the frame (and all the electronics inside) sat at 110VAC via >> the capacitors. > > Yes, it is really hard to fight against really really gross engineering > incompetence. They were lucky it was just an rs232 port that got fried, > and not the users. They wouldn't. I saw the same thing happen between a computer and a printer, on the parallel printer port. The ground connection on the mains socket was faulty or disconnected. The case was floating at half mains voltage, that is, 110 here. I saw the spark, so I quickly found the problem. Yet touching the metal on the case wouldn't kill anybody, because the current flowing was very very small. Unless that person had wet hands, bare feet, and the current happened to flow through the heart. Bad luck :-) -- Cheers, Carlos. --- news://freenews.netfront.net/ - complaints: news@netfront.net ---
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Cursor while booting Helge <w4hw4h.hh@gmail.com> - 2016-03-12 02:54 -0800
Re: Cursor while booting Andreas Kohlbach <march.10.ankman@spamgourmet.net> - 2016-03-12 15:08 -0500
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-13 00:26 -0800
Re: Cursor while booting William Unruh <unruh@invalid.ca> - 2016-03-13 16:26 +0000
Re: Cursor while booting Andreas Kohlbach <march.10.ankman@spamgourmet.net> - 2016-03-13 17:05 -0400
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-15 02:48 -0700
Re: Cursor while booting Robert Heller <heller@deepsoft.com> - 2016-03-15 06:25 -0500
Re: Cursor while booting gazelle@shell.xmission.com (Kenny McCormack) - 2016-03-15 13:32 +0000
Re: Cursor while booting Reinhardt Behm <rbehm@hushmail.com> - 2016-03-15 22:12 +0800
Re: Cursor while booting Robert Heller <heller@deepsoft.com> - 2016-03-15 10:48 -0500
Re: Cursor while booting gazelle@shell.xmission.com (Kenny McCormack) - 2016-03-16 09:20 +0000
Re: Cursor while booting Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2016-03-16 20:15 +0100
Re: Cursor while booting Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2016-03-16 16:09 -0700
Hot-swap-ability of PS/2 devices (Was: Cursor while booting) gazelle@shell.xmission.com (Kenny McCormack) - 2016-03-17 00:31 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Riches <spamtrap42@jacob21819.net> - 2016-03-17 01:10 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-17 05:11 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Heller <heller@deepsoft.com> - 2016-03-16 20:54 -0500
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-17 05:13 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2016-03-17 09:37 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-17 16:42 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2016-03-17 10:02 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) "Carlos E.R." <robin_listas@invalid.es> - 2016-03-17 20:11 +0100
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-18 01:55 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Riches <spamtrap42@jacob21819.net> - 2016-03-18 03:21 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) The Natural Philosopher <tnp@invalid.invalid> - 2016-03-18 12:10 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-18 15:33 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) "Carlos E.R." <robin_listas@invalid.es> - 2016-03-18 20:21 +0100
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-17 19:14 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2016-03-17 13:03 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-18 01:57 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2016-03-17 19:11 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Heller <heller@deepsoft.com> - 2016-03-17 14:30 -0500
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2016-03-17 14:59 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Heller <heller@deepsoft.com> - 2016-03-17 18:16 -0500
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Keith Keller <kkeller-usenet@wombat.san-francisco.ca.us> - 2016-03-18 11:07 -0700
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Heller <heller@deepsoft.com> - 2016-03-18 13:49 -0500
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-03-18 22:13 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-18 19:55 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Robert Heller <heller@deepsoft.com> - 2016-03-18 15:13 -0500
Re: Hot-swap-ability of PS/2 devices Andreas Kohlbach <march.10.ankman@spamgourmet.net> - 2016-03-18 14:35 -0400
Re: Cursor while booting Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2016-03-17 13:31 +0100
Re: Cursor while booting William Unruh <unruh@invalid.ca> - 2016-03-17 15:04 +0000
Hot-swap-ability of PS/2 devices (Was: Cursor while booting) gazelle@shell.xmission.com (Kenny McCormack) - 2016-03-17 00:33 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) William Unruh <unruh@invalid.ca> - 2016-03-17 05:09 +0000
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Aragorn <thorongil@telenet.be.invalid> - 2016-03-17 14:15 +0100
Re: Hot-swap-ability of PS/2 devices (Was: Cursor while booting) Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2016-03-17 15:05 +0100
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-15 02:49 -0700
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-15 02:57 -0700
Re: Cursor while booting Teemu Likonen <tlikonen@iki.fi> - 2016-03-13 11:36 +0200
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-15 02:47 -0700
Re: Cursor while booting William Unruh <unruh@invalid.ca> - 2016-03-15 19:45 +0000
Re: Cursor while booting w4hw4h.hh@gmail.com - 2016-03-15 02:53 -0700
Re: Cursor while booting The Natural Philosopher <tnp@invalid.invalid> - 2016-03-15 10:02 +0000
Re: Cursor while booting Chick Tower <c.tower@deadspam.com> - 2016-03-15 16:52 +0000
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