Article View: comp.sys.amiga.applications
Article #13823Re: Length of nullmodemcable
From: Michael van Elst
Date: Thu, 18 Apr 1996 20:24
Date: Thu, 18 Apr 1996 20:24
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1246 bytes
Andy@lando.demon.co.uk (Andrew Oland) writes:
>I'm sure someone once told me that for a /reliable/ link about 10
>metres is the max. Any more than this and its *possible* that you can
>lose some data across the link.
That depends on the voltages used (RS232 allows +/-3 .. +/-25V for
signals), the cable type and the baudrate used.
With the standard +/-12V and 19200 baud you should be able to go over
a distance of 50m (in fact, that's what I did for some time).
BTW, shielded cable most often reduces the maximum cable length because
it has a higher capacitance. Unshielded twisted pair is probably the
best for RS232 in a normal environment.
Regards,
--
Michael van Elst
Internet: mlelstv@serpens.rhein.de
"A potential Snark may lurk in every tree."
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Path: arc1-ca.pugleaf.net!comma.rhein.de!serpens!not-for-mail From: mlelstv@serpens.rhein.de (Michael van Elst) Newsgroups: comp.sys.amiga.applications Subject: Re: Length of nullmodemcable Date: 18 Apr 1996 22:24:35 +0200 Organization: dis- Message-ID: <4l68e3$ncb@serpens.rhein.de> References: <xdAPjMD0aUz1@wizzcat.prima.ruhr.de> <1019.6682T518T2874@lando.demon.co.uk> NNTP-Posting-Host: serpens.rhein.de