Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!usc!apple!well!svc
From: svc@well.UUCP (Leonard Rosenthol)
Newsgroups: comp.sys.mac
Subject: Re: MAC modem cable pin assignments...
Summary: Hardware Handshaking...
Keywords: Schematic in Jan 1990 MacUser...
Message-ID: <15265@well.UUCP>
Date: 31 Dec 89 19:17:37 GMT
References: <8641@cs.yale.edu> <5270@tekgen.BV.TEK.COM>
Reply-To: svc@well.UUCP (Leonard Rosenthol)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 24

In article <5270@tekgen.BV.TEK.COM> erico@tekcae.CAX.TEK.COM (Eric Oosterhof) writes:
>MacUser, January 1990 discussed re-wiring a modem cable for use
>with high speed modems.  Included in that article is a shematic
>of the changes needed to adapt the current cable.  Use this as a 
>guide for making your modem cable.  They say you can still use 
>the adapted cable with a slow modem.  Words to the effect of the
>schem:
>
> [ cable pinouts removed to make inews happy ]
>
	This cable that they describe is what is known as a Hardware Handshaking
cable as it is wired to provide the use of RTS/CTS (or in this case DTR/CTS)
for flow control (instead of the software initiated XON/XOFF).  This cable can
most certainly be used with any modem, fast or slow, and if you comm program
support hardware handshaking (most do) you will see some speed improvements.
One note is that if you are trying to run a BBS on the Mac, DO NOT use this 
cable as a BBS will require use of the DCD line, and this cable does not use it
they same way...

-- 
+--------------------------------------------------+
Leonard Rosenthol        |  GEnie : MACgician
Lazerware, inc.          |  MacNet: MACgician
UUCP: svc@well.UUCP      |  ALink : D0025