Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mailrus!accuvax.nwu.edu!nucsrl!telecom-request
From: Mike.Riddle@f27.n285.z1.fidonet.org (Mike Riddle)
Newsgroups: comp.dcom.telecom
Subject: Re: Data Access Lines
Message-ID: <8346@accuvax.nwu.edu>
Date: 27 May 90 23:44:46 GMT
Sender: news@accuvax.nwu.edu
Reply-To: Mike.Riddle@f27.n285.z1.fidonet.org
Organization: TELECOM Digest
Lines: 23
Approved: Telecom@eecs.nwu.edu
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 10, Issue 391, Message 9 of 12


Jeremy Goldberg asked about technical specifications for Data Access
Lines, and received many good replies.  One of his basic reason for
asking, however, has not been addressed.
  
Jeremy wants to use a Telebit 9600 bps modem, and his version of Ma
Bell said that only < 2400 was guaranteed on a voice line.  My
understanding is that a 9600 bps modem actually operates at 2400 baud,
with 4 levels, creating a 9600 bps signal.  This method was used
precisely because of the inherent bandwidth of a "normal" voice line.
It seems to me that whoever told him 9600 wouldn't work on a "normal"
line either didn't understand 9600 bps methodology or was trying to
sell up.
 
Can anyone smarter than I (that's most of you) comment on this aspect
of his problem?


   Ybbat (DRBBS) 8.9 v. 3.11 r.3
 * Origin: [1:285/27@fidonet] The Inns of Court 402/593-1192 (1:285/27.0)

   Through FidoNet gateway node 1:16/390
   Mike.Riddle@f27.n285.z1.fidonet.org