Date: Tue, 25 May 1999 11:39:37 -0400 (EDT) From: Thomas David Rivers <rivers@dignus.com> To: terry@program-products.co.uk, wghicks@bellsouth.net Cc: freebsd-questions@FreeBSD.ORG, rivers@dignus.com, wghicks@wghicks.bellsouth.net Subject: Re: console terminal server and power loss Message-ID: <199905251539.LAA06919@lakes.dignus.com> In-Reply-To: <199905251530.LAA81489@bellsouth.net>
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> > > > I may be wrong, but I thought a <break> on an RS/232 was a 25ms > > > drop in the +5v line. When the power goes out, that will be the > > > case... so, you get your break. There's not much you can do > > > about that... > > > > That's what I suspected. Do you know which line the +5v is and wether > > it is constantly +5. It sounds ugly but maybe I could hold it steady > > with a small battery. > > RS232 isn't 5 volts, It swings from -12 to +12 although the 'spec' allows > for a wide tolerance. > > Cheers, > Ah - so I'm wrong.. :-) It's been quite some time since I piddled with RS232 at that level... - Dave Rivers - To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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