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From: bobh@pedsgd.UUCP
Newsgroups: mod.telecom
Subject: Re: High-speed modem query
Message-ID: 
Date: Thu, 24-Oct-85 10:16:30 EST
Article-I.D.: SIMTEL20.KPETERSEN.12154214554.BABYL
Posted: Thu Oct 24 10:16:30 1985
Date-Received: Mon, 28-Oct-85 01:34:38 EST
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In article <120@sandia.UUCP> pjatter@sandia.UUCP writes:
>We are currently evaluating high-speed (i.e., > 1200 baud) modems
>to link our remote terminal users to our Vax.
>
>There seem to be plenty of options in the 2400 baud arena, but now
>we're getting greedy and are looking at some of the 9600 baud
>modems which are beginning to become available. Does anyone have
>any experience with 9600 baud modems (preferrably asynchronous)?
>The only companies I've seen advertise so far are:
>
> Electronic Vaults (Reston, VA): upta 96 (asynchronous)
> Universal Data Systems (Huntsville, AL): UDS 9600 A/B (synchronous)

Another option which just arrived is the Telebit modem, being marketed
by Digital Communications Associates (PC Irma coax interface board et
al).  This is a proprietary asynch scheme for 9600 b/s which
purportedly can adapt to changing line conditions on the fly in
increments of <100 b/s.  They do this by subdividing the bandwidth
into numerous subchannels to spread out the information.  I seem to
recall price for the stand-alone unit to be about $2400.  I mention
this since, as they are currently selling for the volume PC
marketplace, they are likely to become a de facto standard.  I believe
the information number is 1(800) TELEBIT.

						Bob Halloran
						Sr MTS, Perkin-Elmer DSG
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