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From: keeshu@nikhefk.UUCP (Kees Huyser)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Mac <-> MS-DOS File Transfer
Message-ID: <258@nikhefk.UUCP>
Date: Thu, 15-Oct-87 07:21:18 EDT
Article-I.D.: nikhefk.258
Posted: Thu Oct 15 07:21:18 1987
Date-Received: Sat, 17-Oct-87 02:08:43 EDT
References: <210@westmark.UUCP>
Reply-To: keeshu@nikhefk.UUCP (Kees Huyser)
Organization: National Institute for Nuclear Physics; Netherlands
Lines: 52

In article <210@westmark.UUCP> dave@westmark.UUCP (Dave Levenson) writes:
>I am looking for a way to move text files between a Mac-II and an
>IBM-compatible system.  The IBM is equipped with a 3.5" diskette
>drive (double-sided, 720-kbyte standard) accessible as B: under
>MS-DOS.
>
>Dave Levenson

I've been transferring files between an IBM-PC (my BBS) and my Macintosh
quit a lot, with no problems using the following hardware/software combination.

A null modem cable between COM1 on the PC and the modem port on the Mac.

	Macintosh		IBM-PC
	DB-9 male		DB-25 female
	--------- 		------------
	1 <-------------------> 7
	2 <-------------------> 15
	5 <-------------------> 2
	7 <-------------------> 17
	9 <-------------------> 3

Since the Mac II uses a din-8 plug instead of a DB-9, use the din-8 to DB-9
cable that Apple has for sale (part number M0187, cable assembly part number
590-0341-A (stamped on cable itself)

A homebrew din-8 to DB-9 cable looks as follows:

	DIN-8		DB-9
	-----		----
	1 <----------->	6
	2 <-----------> 7
	3 <----------->	5
	4 <----------->	3 jumpered to pin 1 in DB-9 connector
	5 <-----------> 9
	6 <----------->	4
	7   no wire
	8 <-----------> 8
			1 jumpered to pin 3 in DB-9 connector


On the PC side I use ProComm v.2.4.2, on the Mac side VersaTerm Pro 2.0.
The transfer is done at 19200 BPS, a quite reasonable speed.
The transfer method is Xmodem on the PC side, MacBinary Xmodem on the Mac side.
This way all Mac documents, programs etc. that you transfer will be the same
on both sides, i.e if you transfer a Mac program FROM the PC TO the Mac, it 
will get its Icon and properties back.
If you want to transfer plain TEXT files, use Text Xmodem on the Mac side.

Hope this works for you too...

-- Kees