Date: Fri, 9 Jul 2010 15:48:24 +0200 From: Marius Strobl <marius@alchemy.franken.de> To: Narciso Martinez <narcotico@gmail.com> Cc: freebsd-sparc64@freebsd.org Subject: Re: Problems conecting serial port (Sun Enterprise 250) Message-ID: <20100709134824.GA58372@alchemy.franken.de> In-Reply-To: <AANLkTimd05N-GtP-n0Gkl8NFlgFbMGhXMLZzgTYUFTLb@mail.gmail.com> References: <AANLkTimd05N-GtP-n0Gkl8NFlgFbMGhXMLZzgTYUFTLb@mail.gmail.com>
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On Fri, Jul 09, 2010 at 12:05:10PM +0200, Narciso Martinez wrote: > Hello. > > I was trying connect with this server by serial port but I don't get it. > > I tried with minicom and gtkterm but I don't get it. > > For this conection I have to build this cable and all pins are work > perfectly (multimeter), I use the next conections from this site: > http://www.obsolyte.com/sunFAQ/serial/ > > > 25 pin 9 pin > pin 1 GND - pin 1 GND > pin 2 TXD - pin 3 RXD > pin 3 RXD - pin 3 TXD > pin 4 RTS - pin 8 CTS > pin 5 CTS - pin 7 RTS > pin 7 gnd - pin 5 gnd > pin 6 DSR - pin 4 DTR > pin 20 DTR - pin 6 DSR > > > Is this correct? What could be the problem? > The above pinout appears to be a useless mix between an 1:1 and a null-modem adapter. For the null-modem adapter you need pin 2 of the D-Sub 9 conntected should be connected to pin 2 if the D-Sub 25 one, and pin 3 to pin 3, while the other connecteions in the above pinout actually is close to a null-modem adapter. For a complete D-Sub 9 to 25 null-modem pinout see here: http://pinouts.ru/SerialPortsCables/Nullmodem9to9_pinout.shtml Marius
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