Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!portal!sv!news
From: leonardr@svc.portal.com (Leonard Rosenthol)
Newsgroups: comp.sys.mac.comm
Subject: Re: Need hardware flow control cable for 512E and V.32/V.42bis modem
Message-ID: <1990Dec2.195456.7295@svc.portal.com>
Date: 2 Dec 90 19:54:56 GMT
References: <1990Dec1.033152.7268@cs.umn.edu>
Sender: news@svc.portal.com
Reply-To: leonardr@svc.portal.com (Leonard Rosenthol)
Organization: Software Ventures Corporation.
Lines: 21

In article <1990Dec1.033152.7268@cs.umn.edu>, kanefsky@cs.umn.edu (Steve
Kanefsky) writes:
> I just acquired a 9600 baud, V.32 V.42bis modem, and for the time being
> I'm stuck with only a Mac 512E to use it on (i.e. a 9-pin D connector
> for the serial port instead of the 8-pin DIN connector).
> 
> The modem came with a cable which supports hardware flow control, but
> it terminates with the 8-pin DIN connector used on every Mac *except*
> the 128, 512, and 512E.
> 
	I hate to be the bearer of bad news, but you simply CAN NOT do 
Hardware Handshaking on any Macintosh prior to the SE (ie. 128, 512, 512K
or MacPlus).  The reason is that Andy Hertzfeld was too smart for his own
good.  He figured that he could use one of handshaking lines of the SCC to
control the mouse (no ADB back then..) and so that line went to the mouse,
not to the serial ports...

--
Leonard Rosenthol
Software Ventures Corp.
MicroPhone II Development Team