Author: Harald Faber
Date: 09:47:19 08/07/02
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On August 07, 2002 at 12:22:17, Thorsten Czub wrote: >On August 07, 2002 at 08:11:23, James T. Walker wrote: > >>http://www.lammertbies.nl/comm/info/RS-232_null_modem.html > >very good . the only thing we need to know NOW is how the pins >for the WORKING auto232 cable are conncected. has nobody such an instrument >to measure it ? Sure. :-) From my memory: It is the "Simple null modem without handshaking". Pin 5 normal connected (ground or vcc, s.th. like that), and the most important is that the pins 2&3 are crossed: Pin 2 from the first plug leads to Pin 3 in the second plug and Pin 3 from the first plug leads to Pin 2 in the second plug. That is the "secret"...
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