Article View: comp.sys.misc
Article #555Re: Null modem line
From: Sepp Huber, CERN -4439,-6712
Date: Mon, 05 Oct 1992 18:46
Date: Mon, 05 Oct 1992 18:46
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In article <2OCT199219011486@vxcrna.cern.ch>, huber@vxcrna.cern.ch (Sepp Huber, CERN -4439,-6712) writes... >In article <BvGL5q.H04@undergrad.math.waterloo.edu>, jmorton@cayley.uwaterloo.ca (John Morton) writes... >>I am trying to make a long null modem line.(30+ feet) I know that there >>are only 5-6 connections required but I am not sure of the pins. I am >>trying to use a 6wire phone line with no luck. This is what I have tried : >> >>Computer 1 Computer 2 >> Pin Pin >> 2 ---------------- 3 >> 3 ---------------- 2 >> 4&5 -------------- 8 >> 7 ---------------- 7 >> 8 -------------- 4&5 >> >>Is this correct? Do I need more connections? Is it just my >>saudering(sp, I know) job? Should I shield the cable? If so how? > >Depending on what the null-modem is intended to be used for, either: >Connect only the data leads 2-3,3-2,7-7 >or >add at least > 6&22 --------------- 20 > 20 --------------- 6&22 >- I mean, 6&22 ---- 20 IN ADDITION to 8 --- 4&5 and the data leads!
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Newsgroups: comp.sys.misc Path: arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!chx400!dxcern!vxcrna.cern.ch!huber From: huber@vxcrna.cern.ch (Sepp Huber, CERN -4439,-6712) Subject: Re: Null modem line Message-ID: <5OCT199219464611@vxcrna.cern.ch> News-Software: VAX/VMS VNEWS 1.41 Keywords: help Sender: news@dxcern.cern.ch (USENET News System) Organization: European Organization for Nuclear Research, CERN References: <BvGL5q.H04@undergrad.math.waterloo.edu> <2OCT199219011486@vxcrna.cern.ch> Date: Mon, 5 Oct 1992 18:46:00 GMT Lines: 27