[Ham-Mac] RS232 - RS244

Tue, 23 Apr 2002 11:20:32 -0400

John:

In general, RS-244 can be used with the RS-232 devices by connecting it 
as if it were unbalanced.  There is a voltage level difference, but most 
devices have a wide range of voltages that they will accept.  Wiring 
diagrams, usually for connection of a modem, can be found in older 
Macintosh reference books that cover Mac Plus and later.

David
N1EXQ

On Tuesday, April 23, 2002, at 06:56 AM, Cleeve wrote:

> Good morning gentlemen, I know very little about the "inards" of 
> computers,
> so, I would like to ask your advice on how to get a device which talks 
> RS232,
> for PC connection, to connect and talk to a Mac, which uses RS244 I 
> believe
> ....the only information I can glean, is that RS232 is an unbalanced 
> system,
> and the RS244 is balanced.......can anyone help with the appropriate
> conversion / connection data. .......regards, John Cleeve. G3JVC.
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>
      |  J. David Allred
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