From: kim39@scws8.harvard.edu (John Kim)
Newsgroups: comp.dcom.modems
Subject: Re: 14.4K Fax/modems for Sale - $210 & $230
Date: 27 Jul 92 07:03:09 GMT
Article-I.D.: husc3.1992Jul27.030311.14214
Organization: Harvard University Science Center

@cs.mcgill.ca> mingmar@cs.mcgill.ca (Ming MAR) writes:
>I've been using an external Dallas Fax v.32bis v.42bis model
>14.4E Pro Plus fax/modem for about two weeks.  I use it only to
>connect to school.  (Ever since I've been able to access usenet,
>I stopped calling BBSes.)  I can connect to the v.32bis, 2400
>MNP, and 2400 lines.  In order to connect to the 2400 bps lines,
>I have to instruct the modem to connect at 2400 bps.  In order to
>connect to the non-MNP line, I have to instruct the modem not to
>negotiate compression.
	Did you try getting an update on instructions from the Dallas
Fax BBS?  That's what I did and it was helpful.
>
>I suspect that the difficulty is due to the modem pools at school
>because someone else (with a different brand modem) reported
>having the same problems.
	**** My Dallas FAx also has trouble on just one line--the
9600 bps MNP 5 line at Harvard.  This line is known to be dirty.  I
have had no trouble connecting with the other 9600bps Harvard line I know
of and no trouble connecting at 9600bps or 14000bps with various
local BBS numbers.  Note that all those local high speed BBS lines
run on very expensive high quality US Robotics modems, so it's possible
that my success is due in part to connecting to good modems and not
entirely due to using a Dall Fax modem.
>
>I have not tried the fax part of the fax/modem.
	**** My sendfax works very well.  Never tried receive fax and
I expect it will never be convenient to use unless we buy a separate FaX
line.  The FAX adn communications software shipped (MTEZ with ExpressFAX)
is mediocre.  It's great for sending faxes, but kind of lame for regular
loggin on and stuff.>

>The modem came in a cheap black plastic housing and the LEDs on
>the circuit board were not properly aligned with the clear
>windows of the housing.  It used the Rockwell chipset.  The LEDs
>are undocumented.  They are labelled OH, CI, TR, TX, RX, SD, AA,
>TM.
		Well, I got the internal, so I didn't even get a cheap
box!  However, usually OH is Off-hook, SD is Send Data, and AA is
Auto Answer.  You will notice that ifyou give your modem the autoanswer
command, the AA light should come on.  TR is "Termianl REady" which usually
means your software has told the modem that you are in business to talk.
"RX" migth be receive data.  On my old Zoom modem the SD and RD lights
would flash on adn off depending on which modem was talking at the time.>
You modem SHOULD have a HS light for highspeed, meaning 2400+ on
2400 modems and 9600+ on 9600 modems.

>The booklet that comes with it has formatting and spelling
	**** My booklet was nice with almost no errors, but it
had the wrong extended command set and S-register documentation.
Not really wrong, but just enough to get me really confused.  Then
the tech support guy at Dallas Fax pointed out that I had a newer
modem with an AT&T chipset, not Rockwell, and that I had a manual
for the Rockwell set.   He didnt' have a solution but gve me
the BBS number.  ON the BBS I found an online document which
I downloaded at 14.4 with my Dallas Fax modem and printed out.
It explains everything correctly and includes the AT commands which
were skipped in the book.

	***** Try calling the BBS to look for a corrrect manual
update and for info on improved BIOS updates.  Dallas Fax sometimes
ships you a better BIOs for some older models.
-Case Kim
Newsgroups: comp.dcom.modems