Path: utzoo!utgpu!water!watmath!clyde!bellcore!decvax!mandrill!neoucom!wtm
From: wtm@neoucom.UUCP (Bill Mayhew)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit modem questions answered
Summary: Two questions
Keywords: techdoc Telebit questions
Message-ID: <1041@neoucom.UUCP>
Date: 7 Mar 88 15:34:11 GMT
References: <133@telebit.UUCP>
Organization: Northeastern Ohio Universities College of Medicine
Lines: 16


1.  Both my Trailblazer's have General Instruments DSP chips.  One
modem is about 8 months old with rev 3 firmware.  The other is
about 3 months old with rev 4 firmware.  I take it that the GI DSP
chip is a functional equivalent to the Texas Instruments chip?

2.  The older modem has some SMD chips on a little daughter board;
the newer modem has an AMD "Worldchip".  I take it these are then
strictly for DTMF  generation and call progress detection?

3.  Oh yes, here's another.  What is the big square (Toshiba, I
think) chip in the newer telebit design doing?

Thanks for posting the tech summary.

--Bill