NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/dcom/modems-part1/833

Text File | 1996-08-05 | 2.0 KB | 44 lines

Newsgroups: comp.dcom.modems
Path: lazrus.cca.rockwell.com!dtmedin
From: [e-mail] (David T. Medin)
Subject: Re: Sportster Vi 28.8    DTR Dropped
X-Nntp-Posting-Host: marley.cca.rockwell.com
Message-ID: <[e-mail]>
Originator: [e-mail]
Sender: [e-mail]
Organization: Rockwell Avionics - Collins, Cedar Rapids, IA
References:  <4cosdl$[e-mail]>
Date: Tue, 9 Jan 1996 01:46:36 GMT


In article <4cosdl$[e-mail]>, Dennis Robinson <[e-mail]> writes:
> I use Win 95 with the Dial-up adapter.  The modem connects and
> then drops the connection.  AT16 is always DTR dropped.  This
> happens with both of my ISP's, who use USR 28.8's, and with
> USR's BBS. My old 14.4 works great with everything. I have had
> no helpful response from  USR product support and the local
> vendor doesn't want the modem back. Any ideas outthere

DTR is sourced by the computer as a control signal to the modem. Look
to the software as the source. DTR is dropped by your computer, not by
the modem, and the modem responds per the &Dx setting currently in
force in the modem when DTR goes inactive. So, it looks like your comm
software is pulling DTR inactive, for reasons unknown at this point.
If you have the external Vi, you should be able to see when DTR gets
de-asserted in the dialup sequence. That isn't to say that the
software is not detecting some sequence from the modem that is causing
it to prematurely drop the connection. What is the init string used by
the Dial-up Adapter? I don't have Win95 up yet, so I can't help from
that end...

My Vi works great with AOL and the USR BBS with just the AT&F1 string.
My cable and port fully support hardware handshake--a requirement to
use the &F1 template.


--
-------------------------------------------------------------------
       David Medin            Phone: [phone]
   Rockwell Collins ATD          Internet:
     Cedar Rapids, IA           [e-mail]