TIP: Click on subject to list as thread! ANSI
echo: usr_modems
to: Brad Lourie
from: Stephen Walsh
date: 1996-05-16 21:55:24
subject: Re: Is there going to be a fix

Hello Brad,

 BL> First off, I just bought a BRAND NEW USR 28800 Sportster Voice, Model
 BL> 1171. Ser# 0011710049209346, and it is BUGGIER than an ant hill.  This
 BL> is the second one I've tried.  The first did nothing but cause pain for
 BL> my users.  CRC errors when uploading and downloading, pauses, crashes,
 BL> keyboard freezes, the works.  After consulting with a fellow sysop I
 BL> took the first one back and exchanged it for this one.  After
 BL> installing it (the second one) and playing with the registers and
 BL> programmable dip switches, I finally managed to get it on-line.  I was
 BL> able to get rid of the CRC errors by disabling the 33.6 feature by
 BL> setting the S32 register to 16.  HOWEVER... Now, when I get users at
 BL> speeds greater than 19200, they get GARBAGE on their screens; users at
 BL> 19200 and less still have their keyboards freeze up, and not knowing
 BL> that all they have to do is wait and the modems will start talking
 BL> again, end up doing the 3 finger salute on their end, crashing the
 BL> board...

Could it be that your phone line does not support the higher speeds that
vfc/v34 offer and that 14.4K/19.2K is the limit that it will support.
Have you borrowed another brand of vfc/v34 modem to try out on your
system yet? As you might find that that modem will also display the same
problems. Do both of your machines have 16550uart's installed? What speed
are you locking the computermodem link at? 57.6K is plenty for a
28.8K/33.6K modem


Stephen


... "Then that's it?.... No other comment?!" - Picard

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