Date: Mon, 12 Apr 2010 01:22:34 +0200 From: Grzegorz Daniluk <lin_g@o2.pl> To: freebsd-questions@freebsd.org Subject: Re: reliable rs-232 Message-ID: <4BC259BA.8020201@o2.pl> In-Reply-To: <4BC0800D.9030407@o2.pl> References: <4BC0800D.9030407@o2.pl>
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Thank you very much for all your advices. The device I'm going to 'talk to' is cesium clock with rs-232 interface. So it is not possible to simply change the interface to differential one. Connection cable can be short and the transmission speed can be slow. The most important thing for me is to ensure the long term communication. Not to lose any data is very important when periodically monitoring cesium parameters. We are speaking here about months and years of continous operation. That is why I'm afraid of something 'strange' happens to my rs-232 interface and communication. Maybe I'm too afraid of strange magic, but still, is it possible that my rs-232 could change its transmission parameters as a result of e.g. nearby elecrical interference ? Or, in general, what bad thing could happen to me in such scenario. Thanks a lot, Greg
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