Xref: utzoo unix-pc.general:1328 comp.sys.att:4178
Path: utzoo!utgpu!water!watmath!uunet!portal!cup.portal.com!thad
From: thad@cup.portal.com
Newsgroups: unix-pc.general,comp.sys.att
Subject: Re: serial port wiring for unix-pc
Message-ID: <8806@cup.portal.com>
Date: 5 Sep 88 22:49:21 GMT
References: <1639@ddsw1.UUCP>
Distribution: na
Organization: The Portal System (TM)
Lines: 34
XPortal-User-Id: 1.1001.2826

> I have a question concering the wiring scheme for DTE to DTE connection.
> I am using a RJ-11 - DB25 adaptor.  The problem is that there are only
> 4 wires available to connect.  I do know I need pins 2 & 3 crossed and
> pin 7 is a straight thru.  Now, what do I do with the extra wire and
> would I have to short any pins on the serial port end of the unix-pc?
> Thanks for the info.

Here's what I've been using reliably:


         OTHER DTE                      UNIX PC


           (1)----------------------------(1)

           (2)----------------------------(3)

           (3)----------------------------(2)

           (7)----------------------------(7)

                                      +---(4)
                                      |
                                      +---(5)

                                      +---(6)
                                      |
                                      +---(8)
                                      |
                                      +---(20)



Thad Floryan   [ thad@cup.portal.com (OR) ...!sun!portal!cup.portal.com!thad ]