Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!emory!kd4nc!rbdc!andy
From: andy@rbdc (Andy Pitts)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit T1000 problem.
Keywords: Telebit, T1000
Message-ID: <1990May29.064433.21904@rbdc>
Date: 29 May 90 06:44:33 GMT
References: <728@essnj1.UUCP>
Organization: Red Barn Data Center Public Access Unix, Winston-Salem, NC.
Lines: 34

smitty@essnj1.UUCP (Hibbard T. Smith JR) writes:

[...]

>The problem is that after an outbound call, the modem will not float to the
>speed of an incoming call.  It only offers the speed at which the preceeding 
>(outbound) call was made.  Apparently the speed lock is remaining in effect,
>and the stored profile is not being obeyed.  I've checked with a scope, and 
>the system drops DTR for a couple of seconds.  If I drop DTR manually, or 
>power down and up the modem, the "float" works properly.

[...]

>Thanks in advance for any help.
>-- 
>		Smitty
>-------------------------------------------
>Hibbard T. Smith JR                 	 ESSNJAY Systems Inc.
>uunet!hsi!essnj1!smitty

This should be of general interest.

In some versions of the firmware for the Trailblazer Plus, there exists
a bug which causes the modem to ignore transitions of DTR, if DTR drops
at the same time or immediately after the modem drops DCD.  This sounds
like what you are describing.  I don't know if this problem exists in
the T1000.  I would suggest that you call Telebit and ask them.  They
are quite helpful.

Disclaimer:  I have one of their modems...Beyond that, I have nothing
to do with Telebit.
-- 
Andy Pitts andy@rbdc.UUCP  : "God is an overwhelming responsibility"
...!emory!kd4nc!rbdc!andy  :            --Jethro Tull--