Path: utzoo!attcan!uunet!comtst!teqsoft!jmc
From: jmc@teqsoft.UUCP (Jack Cloninger)
Newsgroups: comp.dcom.modems
Subject: Re: New Modems, Telebit Fails under impairments in PC Magazine tests
Message-ID: <34@teqsoft.UUCP>
Date: 30 Nov 90 14:10:20 GMT
References: <1715@chinacat.Unicom.COM> <1990Nov19.191023.11581@nstar> 	<1990Nov21.221114.11850@unixland.uucp> 	<1990Nov23.185029.2663@nstar.rn.com> 	<1990Nov26.010656.20883@virtech.uucp> 	<1990Nov26.024835.13024@ux1.cso.uiuc.edu> 	<1990Nov26.062122.24546@sbcs.sunysb.
Organization: TeqSoft, 112 N Highway 1, Tequesta, FL 33469 (407-747-7163): Document Processing
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bob@MorningStar.Com (Bob Sutterfield) writes:

>The modem comparison article in the December 11 1990 issue of PC
>Magazine has stimulated some interesting discussion, particularly
>regarding the poor showing of the Telebit T2500 in their comparison
>tests.

I would also like to add my name to the list of VERY satisfied Telebit
T2500 users. The T2500 is fundamentally a nearly general purpose DSP
platform. As such it is capable of offering many different modes of
operation. Telebit has translated that generality into a rich set of
user-selectable options implemented through a somewhat formidable set
of S-registers.

The more options a user has to select from, the more difficult the
initial setup may tend to be, especially to a reviewer whose only
contact with the hardware in question may be during the
deadline-driven review process. I like to use the analogy of a
standard tumbler-type doorlock when talking about the difficulty of
setting up a piece of hardware or a software system that has many
options. In order for a lock to open, the key that is inserted must
raise each of the tumblers to the exactly right level so that the bolt
will move. By analogy the lock tumblers are the S-registers that must
all be set up correctly to get the desired behavior.

This is not a criticism of Telebit, merely my humble understanding of
why well meaning and even quite technically capable people tend to get
things wrong when faced with many options. TFM is IMHO very complete
in its explanation of the nature and function of each of the options,
and simply requires diligent reading to arrive at a proper level of
functionality.

Telebit customer support also has supplementary documents available that
suggest complete register setups for particular situations.

I have no connection whatever with Telebit, but I am very pleased with
the performance of my T2500 and am well aware that any problems I may
have had with the initial setup were based on my human reaction to the
number of setup choices available.

Jack
-- 
Jack Cloninger, TeqSoft, 112 US Highway 1, Tequesta, FL 33469    B-)
...uunet!comtst!teqsoft!jmc       Phone: 407-747-7163  Fax: 407-747-0354