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Article #792Yet another request for Opto-Iso. recommend
From: Mark Robert Thorson
Date: Thu, 13 Jul 1989 03:41
Date: Thu, 13 Jul 1989 03:41
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I want to receive an RS422 signal from a 26LS30 with 40-60 ohms of series resistance. I think isolation between the host and the peripheral would be a good idea. Can anyone recommend a good cheap opto-isolator for use with RS422 from a Macintosh? What should put across the RS422 signal, other than the opto-isolator leads? (e.g. back-to-back Zener diodes or a MOV for overvoltage protection? This thing will be for >25 feet, and must be cheap.)
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arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!sun-barr!cs.utexas.edu!uunet!portal!cup.portal.com!mmmShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!sun-barr!cs.utexas.edu!uunet!portal!cup.portal.com!mmm From: mmm@cup.portal.com (Mark Robert Thorson) Newsgroups: sci.electronics Subject: Yet another request for Opto-Iso. recommend Message-ID: <20380@cup.portal.com> Date: 13 Jul 89 03:41:12 GMT Organization: The Portal System (TM) Lines: 7