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Reply To: | VICUG-L: Visually Impaired Computer Users' Group List |
Date: | Sat, 18 Oct 1997 15:39:47 -0800 |
Content-Type: | text/plain |
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U.S. Robotics modems are a popular brand and
often shipped with new computers. I found some guidance on
configuring them which others may find useful as well.
Jamal
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Proper Settings for ALL U.S. Robotics Modems
This file will show the proper settings
for USR High Speed modems (14.4 to 28.8).
This will also describe how to setup your
USR modem so that you will connect properly
everytime you call your favorite bbs.
Now even simpler with enhanced detail!
The Big Guy
SysOp - H.H.L. SYSTEMS BBS
Node 1 - 204-897-0751
Node 2 - 204-895-0534
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U.S. ROBOTICS MODEM SETTINGS v1.2
Here are the easy settings for ALL USR High-Speed modems. (14.4 - 28.8)
Some people were having trouble understanding the previous version
so I have (greatly) simplified the directions & made it so that
(nearly) anybody can get through this without any problems.
DISCLAIMER: The only thing this file is guaranteed to do is take
up a small amount of space on your system. None of the
commands can damage your modem. Any command entered can
be changed back if it causes any problems whatsoever.
I do not take any responsibility for anybody using
these instructions in the extreemly rare case that
something goes wrong with your system.
PLEASE READ CAREFULLY!!
You may wish to have this printed so that you can
follow the proceedures step by step.
LETS GET STARTED....
I have listed the "proper" setting & then explained
how to change any settings after the listing.
NOTE: You do NOT have to change a setting if yours is the same.
Only change the settings that differ from yours.
NOTE: You should be in the "Terminal" window of your Communications
Program to check, display & correct any incorrect settings.
ATZ : Type this first to load the NVRAM Defaults
ATi4 : Type this to display the settings
Compare your settings to these listed below.
I have NOT included all the settings as some
are not pertinent & are fine by default.
The following settings are the only ones
you should need to compare & correct.
B0 C1 E1 F1 M1 Q0 V1 X7 : X4 for the USR Sportster
BAUD=57600 : Should be set at 57,600 for all v.34 modems
38,400 for USR Couriers & 19,200 for 14.4 Sportsters
This is changed in your software & not by the modem.
Check your Communications program setup for this.
DIAL=HUNT : Unless you have a pulse dial telephone, this
should be set to "Hunt". (AT T is the command)
&A3 &B1 &C1 &D2 &H1 &I0 &K1
&M4 &N0 &R2 &S0 &X0 &Y1
S11=045 : All other "S" registers can stay at the default
NOTE: I have added a more detailed list of
these commands at the end of this file.
HOW TO CHANGE THE SETTINGS....
Note: If you're running a Sportster, make sure
dip switch 7 is in the "OFF" position.
If any of these settings are NOT shown in
your ATi4 settings, don't worry. It just
means they're not used by your modem.
PLEASE READ ALL OF THIS BEFORE MAKING CHANGES!
Go to the "Terminal" window of your communications program.
Type ATZ to reset the defaults, type ATI4 to see the settings.
All the settings should be the same as listed above. If they're
different, you can change yours by typing AT plus the correct setting.
ie: if your setting is B1, you would type AT B0 <enter>
You should receive an "OK" after pressing enter.
To change an ampersand (&) command, you would type AT &A3 <enter>
To change Dial type to tone (Hunt), you would type AT T <enter>
The only "S" register that needs to be changed is S11.
You would change this by typing AT S11=45 <enter>
Fax settings are not listed & are fine by default.
After changing all the appropriate settings (for example)
in the form AT S11=45 &A3 B0 <enter>, then type AT &W <enter>
to write the new settings to the NVRAM. You can always
go back & change any settings later if needed.
Type ATZ again & then type ATI4 to see the new settings
& compare your new setting with the ones listed above.
If this doesn't work & the changes were NOT saved (it should
if you follow this correctly) you have done something incorrectly
or you have a second template loaded in your modems settings.
This can be disabled by switching dipswitch 7 (on the sportster)
to the opposite position.
Once you've determined that the settings have been saved properly.
You SHOULD then CHANGE your communications software
initialization string to ATZ & these settings will be
loaded each time you start your comm. program thus eliminating
the need for all those long redundant init strings.
DETAILED SETTINGS (What these silly things mean)
B0 - Handshake v32/v32bis mode enabled
C1 - Transmitter Enabled (make sure this is C1)
E1 - Command Mode Echo On
F1 - Local Echo (Full Duplex) Off
M1 - Speaker On until carrier established
Q0 - Display Result codes
V1 - Verbal Result codes
X7 - Extended Result codes (X4 for Sportsters)
&A3 - Display all result (connection) codes
&B1 - Fixed serial port rate (set by communications program)
&C1 - Normal Carrier Detect
&D2 - DTR (Data Terminal Ready) Normal Operation
&H1 - Transmit Hardware Flow Control (CTS) ON
&I0 - Receive Flow Control (Software) Off
&K1 - Data Compression (Auto)
&M4 - Normal / ARQ (Error Correcting) Mode
&N0 - Link Rate variable (with other end)
&R2 - Receive Data Flow Control (RTS) ON
&S0 - Data Send Ready (DSR) ON
&X0 - Synchronous Transmit Clock DTE setting (Courier Only)
&Y1 - Destructive Break Handling
S11=045 - Duration of delay (ms) between dialed tones (faster dialing)
This should help you get a perfect connection everytime
you call your favorite bbs or on-line service.
Any comments can be sent to
Ray Walsh - The Big Guy
SysOp - H.H.L. SYSTEMS BBS
Node 1 = 204-897-0751 (USR 14.4)
Node 2 = 204-895-0534 (USR 28.8 v.34)
Internet: [log in to unmask]
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End of Document
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