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From: nardis@iccgcc.decnet.ab.com
Newsgroups: comp.sys.ibm.pc.hardware
Subject: An Apple on my IBM
Message-ID: <1668.272bda17@iccgcc.decnet.ab.com>
Date: 29 Oct 90 12:28:21 GMT
Lines: 27

I am trying to hookup an Applewriter printer to a friends XT clone.  The Apple
is a serial printer so I figured I could run it out the XT's com1 port. It does
not work (works ok on the Apple).
Here is what I have done;

Installed the following commands in the autoexec.bat file;
	mode lpt1:=com1
	mode com1:,9600,n,8,1

pin outs as follows;

	Apple 25 pin d		IBM COM1	Signal Name
		6		6		dsr
		8		8		dcd
		20		20		dtr
		3		3		rxd
		7		7		gnd
		2		2		txd

 This looks like standard RS232-C stuff to me but trying to redirect output to
lpt1 (or com1 for that matter) gives me a printer not ready error.  I also
tried an inline null modem adaptor thinking that pins 2 and 3 needed to be
swapped but that does not work either.

Any help would be greatly appreciated,

Frank Nardis