Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!ut-sally!utah-cs!utah-gr!uplherc!sp7040!obie!wsccs!bill
From: bill@wsccs.UUCP (Bill Housley)
Newsgroups: comp.dcom.modems
Subject: Re: USR Courier 2400 won't hang up!
Message-ID: <230@wsccs.UUCP>
Date: 1 Mar 88 22:24:58 GMT
References: <125@ucrmath.UUCP>
Lines: 25

In article <125@ucrmath.UUCP>, jantypas@hope.UUCP (John Antypas) writes:
> Has anyone out there ever seen this problem on a Courier 2400?  It
> will run 24 hours a day wiht no problem and then it will complete a call
> and the Send Data (SD) light won't go out and the modem will hang.
> It ignores all commands sent to it until I turn it off and then on again.
> It's as if the modem thought it had a connection when it didn't.  The
> new Couriers seem to do it too.  It has been suggested I hold DTR down
> longer.  How does one do this from Unix?
> 



This may seem insultingly obvious, but have you checked how DSR is being
shorted, that it is not connected to a pin that is always up?









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