*BSD News Article 89496


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From: Andrew Gordon <andrew.gordon@net-tel.co.uk>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: tty problems (aren't there always)
Date: Fri, 14 Feb 1997 17:45:37 +0000
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H. Eckert wrote:
>> I do have trouble trying an IP-connection with PPP though as the
> responding part on the BSD side apparently turns rts/cts on again
> which locks the line.  I understand my Mac<->DB25 cable may be
> badly connected since I can't get flowcontrol to work correctly
> from the Mac side.  I gave it a co-worker for testing but he said
> the cable's ok...

Note that there are at least 3 "standard" ways of wiring a Mac
RS232 cable - older Macs did not have enough inputs to connect
both DCD and CTS, so there were two cable wirings giving you
either flow control or carrier detection.  More recent Macs
have an extra input, leading to a third cable spec for both
DCD and CTS.