Troubleshooting - US Robotics 005689-03 Manual

Troubleshooting

Troubleshooting
Before the modems connect... Before the modems connect...
If your modem doesn't respond to If your modem doesn't respond to
any AT commands, any AT commands,
Make sure the modem is on.
Make sure the computer is in Terminal
mode.
Type in all upper (AT) or lower (at) case.
Check that the bit rate is not 14,400 or
28,800.
If your modem displays double If your modem displays double
characters on your monitor characters on your monitor
(example: AATT), (example: AATT),
You can turn the local echo off on the
modem by typing ATEO <enter> in your
software's terminal mode. To turn the local
echo off in the software, refer to your
software's documentation.
If your modem doesn't dial a If your modem doesn't dial a
number or doesn't answer the number or doesn't answer the
phone, phone,
Make sure the phone cord is connected
to the jack on the modem labeled
TELCO and to a phone jack.
Review your software documentation to
see what DTR operations are required.
For MacComCenter and most other Mac
applications, dip switch 1 should be
down and &D0 should be in the init
string.
Check that the bit rate is not 14,400 or
28,800.
Also, try dialing with ATX3DT as the dial
string.
For answering, make sure that your software
has auto answer enabled.
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