SUMMARY: pinout of db-8 connector on IPC to connect to DB-25 modem

From: Paul J. J. Harrington (phrrngtn@dsg.cs.tcd.ie)
Date: Fri Apr 23 1993 - 09:26:54 CDT


In article <1993Apr7.180536.20601@dsg.cs.tcd.ie> I wrote:

>Could anyone send me the pinout of the serial ports on an IPC. I need to

Well, I got a few answers, thanks.

It was in the FM but ...... here it is. I got the cable made up and it
worked fine. I would not have been able to do it as quickly as I did
without all the help from the people below.

Thanks to:
herman@telecom.ti.com (Herman Schuurman)
Gary.Cook@Corp.Sun.COM (Gary Cook - ICON Edu Mgr)
hargen@sybus.com (Bill Hargen)
mikey@ccs.carleton.ca (Mike G
gambhir@sun490.fdu.edu (Dinesh Gambhir)

----------------------------------------

Date: Fri, 9 Apr 93 11:11 EDT
From: Bill Hargen
Subject: Re: Need pinout of db-8 connector on IPC to connect to DB-25 modem

Try the AnswerBook or the IPC hardware install manual that comes with
the IPC.

----------------------------------------
Date: Wed, 7 Apr 93 16:20:28 CDT
From: Herman Schuurman

It's in the SPARCStation IPC Installation Guide, Appendix D: Cables
for Serial Devices. Figure D-7 has the complete serial port adapter
cable pinouts. I've included the important section below:

Din-8 DB-25 Circuit Signal Direction Description
  1 20 CD DTR output Data Terminal Ready
  2 5 CB CTS input Clear to Send
  3 2 BA TxD output Transmit Data
  4 7 AB GND - Ground
  5 3 BB RxD input Receive Data
  6 4 CA RTS output Request to Send
  7 8 CF DCD input Data Carrier Detect
  8 17 DD RTxC input Receive Clock

The pins on the Din-8 connector look like:

                     ---------
                   ' === `
                 ' `
                ' | 6 | 7 | 8 `
               | ___ ___ ___ |
               | 3 4 5 |
                ` ___ ___ '
                 ` 1 2 '
                   ` '
                     ---------

I hope this is enough to allow you to make a cable.

        -- Herman

-- 
Paul Harrington, phrrngtn@dsg.cs.tcd.ie, phrrngtn@gallimaufry.ie +353 88 599673
Dept. Computer Sci., Trinity College, University of Dublin, Dublin 2, Ireland.



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