Message-ID: <[EMAIL PROTECTED]> From: Uwe Klein <[EMAIL PROTECTED]>
> the same happened if the currentloop in rs422 was broken Although the relevant parts of the article seem OK, rs422 is not current loop. I think current loop is so old that it pre-dates current loop. RS422 is bipolar balanced. Current loop is unipolar, and likely to be unbalanced. I think RS422 receivers are biassed in the same way as RS232 ones so that a physical line break doesn't result in a spacing condition, and therefore a break condition detection. (I suspect this is why RS232 data and control lines have opposite senses, so that disconnected goes to control false, but to data marking. Incidentally, your copy of Mozilla seems to have been configured not to request German language responses; is that what you intended? _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
