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Article #14890Re: What are the threshold levels for RS-232?
From: The Superuser
Date: Mon, 14 Dec 1992 04:27
Date: Mon, 14 Dec 1992 04:27
10 lines
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1067 bytes
Greetings. The RS232 standard was superseded by the EIA-232D standard. It specifies a driver minimum output range of +/-5V and a maximum of +/-15V. Receiver input sensitivity is spec'd at +/-3V. There are single chip driver/receiver solutions that will provide an acceptable +/- swing from only a single +5V for 232D. There are also chips that use a single 3.3V supply to implement the lower voltage EIA/TIA-562 standard, which defines > +3V as a 0, and < -3 as a 1. This standard can be interoperated with 232D interfaces. See the Maxim chip series for a wide range of such devices. --Lauren--
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!randvax!cv.vortex.com!root From: root@cv.vortex.com (The Superuser) Newsgroups: sci.electronics Subject: Re: What are the threshold levels for RS-232? Keywords: RS232 voltage Message-ID: <Bz8F1n.4CL@cv.vortex.com> Date: 14 Dec 92 04:27:23 GMT References: <widow.723866984@camelot> <JON_SREE.92Dec9075724@world.std.com> <1992Dec14.025912.14282@massey.ac.nz> Organization: Vortex Technology, Topanga, CA, U.S.A. Lines: 10