Path: utzoo!mnetor!uunet!cbmvax!rutgers!ames!amdahl!dlb!dana!rap
From: rap@dana.UUCP (Rob Peck)
Newsgroups: comp.sys.amiga
Subject: Re: Serial
Message-ID: <278@dana.UUCP>
Date: 7 Jan 88 17:28:45 GMT
References: <2287@crash.cts.com>
Organization: Dana Computer, Inc., Sunnyvale, CA
Lines: 30
Summary: This seems to work ok...

In article <2287@crash.cts.com>, amiguy@pnet01.cts.com (Sean Wolfe) writes:
> This is a Help me question for the hardware wizzes.
> 
> Ok, I bought a used RS232 terminal capaible from 50 to 19.5Kbaud, great.
> Now, I need to know how to make a null modem cable.
> Can anyone help me get this thing going.. 
> Thank's In Advance,
>   Sean

The following cable is what I have used for the past few years as
a null modem cable between any two computers:

	1.  At each end, I hardwired pin 4 to pin 5.

	2.  At each end, I hardwired pins 6 to 8 to 20.

	3.  From connector 1 to connector 2, I wire pin 7
	    straight through.

	4.  From connector 1 to connector 2, I wire:
		   pin 3           pin 2
		   pin 2           pin 3

thats all!

It works just fine with all of my terminal programs to transfer files
from Amy to a Kaypro 2X, a SUN-2, or an Apple running a Prometheus
multifunction (serial) card.

Rob Peck			...ihnp4!hplabs!dana!rap