Date: Tue, 23 Mar 1999 09:07:54 +0000 From: Brian Somers <brian@Awfulhak.org> To: "Dan Mahoney Jr." <danm@DanMahoney.com> Cc: questions@FreeBSD.ORG Subject: Re: serial cables Message-ID: <199903230907.JAA02178@keep.lan.Awfulhak.org> In-Reply-To: Your message of "Tue, 23 Mar 1999 00:43:47 EST." <Pine.BSF.4.05.9903230039580.29662-100000@acetylene.vapornet.net>
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AFAIK, most ``laplink'' cables don't come with pins 6 & 8 connected
to pin 20 on the other side. The idea behind this cross-over is to
wire DTR on one side to carrier on the other.
Without carrier, the ttyd devices will block.
> Okay, I've got a question that doesn't directly relate to freebsd, but
> more to hardware...
>
> For some reason, when I use serial cables, some pin is not being asserted
> and therefore causing serial communications to fail when I try to connect
> my serial terminals...
>
> I don't know WHICH pin it is, but for some reason the terminals work okay
> when I change the line in /etc/ttys from ttydX to cuaaX where X is the
> port ID.
>
> I note that this only happens on my 25 pin ports, not on my 9 pin ones,
> which is really just weird. (And on two separate cards, one generic and
> one from Byte Runner)
>
> Any help appreciated....
>
> -Dan Mahoney
>
> --
>
> "Let me tell you something about regrowing your dead wife Lucy, Harry.
> It's probably illegal, potentially dangerous, and definitely crazy."
>
> -Harry nods-
>
> Vincent Spano, as Boris in "Creator".
>
>
> Dan Mahoney
> Gushi on efnet IRC
> ICQ:13735144
> (webpages TBA)
--
Brian <brian@Awfulhak.org> <brian@FreeBSD.org> <brian@OpenBSD.org>
<http://www.Awfulhak.org>;
Don't _EVER_ lose your sense of humour !
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