*BSD News Article 18574


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From: loodvrij@cyb.cojones.com (Bruce 'Loodvrij' Keeler)
Newsgroups: comp.os.386bsd.bugs
Subject: Re: Problems with patchkit 0.2.4
Message-ID: <CAAEBo.LFF@cyb.cojones.com>
Date: Sat, 17 Jul 1993 02:16:21 GMT
References: <221u4k$lfn@acsc.com> <1993Jul15.070541.27917@cnplss5.cnps.philips.nl> <224in8$fl0@acsc.com>
Reply-To: loodvrij%cyb@fredbox.cts.com
Organization: The museum of ancient wombats
Lines: 17

In article <224in8$fl0@acsc.com> fmayhar@acsc.com writes:
>In article <1993Jul15.070541.27917@cnplss5.cnps.philips.nl>, rooij@bashful.isp.cft.philips.nl (Guido van Rooij) writes:
>
>|> Check the cabling between the modem and the port. It should be a complete
>|> nullmodem cable, with RTS/CTS,DTR/DSR! (so at least 7 wires!!) also make
>|> sure teh carrier detect is wired!
>
Huh?  Unless you have very wierd ports or modems, the cable should be straight
through!  You only need a null-modem if you're connecting 2 computers, usually.

The wiring I use for null modems (I'm using one with NetBSD right now) is
cross RX/TX, RTS/CTS, and DTR/DCD and wire signal ground straight through.
Some books also tell you to connect DTR and DSR at each end (ie not through
the cable, but just within the connector), but I've left DSR unconnected
and it seems to work fine.

Bruce  loodvrij%cyb@fredbox.cts.com