From: Spiro Trikaliotis (trik-news_at_gmx.de)
Date: 2004-01-16 08:10:12
Moin Ruud,
On Fri, Jan 16, 2004 at 07:40:51AM +0100, Baltissen, GJPAA (Ruud) wrote:
> > btw, using rs232 cables >10m are also a violation of the standard
> Ehhhhh, missing at least one zero? We used to use lines of 150 meters
> long in the KNP-paperfactories in Lanaken, Belgium, W/O any problem.
> But we carefully took care that GND, PE and N were connected as
> mentioned on this German site mentioned by Spiro.
Violating a standard does not necessarily mean that it does not work.
;-)
I remember something like 10m or 15m as being the maximum allowed for
RS/EIA 232. More *can* work (and even does most often), but it is not
what the participating parts have to be able to handle. Do you remember
which datarate was used?
For 150m, RS422 (or RS485) should be a much better choice.
Spiro.
--
Spiro R. Trikaliotis
http://www.trikaliotis.net/
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