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Chapter 6. Troubleshooting
56 Express XRT User Guide 61202.153L3-1
External Analog Modem Not Detected
If the Express Configuration Wizard cannot detect the external an-
alog mode verify the following:
1. The external analog modem is powered on.
2. The external analog modem is properly installed and config-
ured for use with the Express Configuration Wizard. See Con-
figuring an External Analog Modem on page 30 for more details
on the required settings.
Difficulty with 230.4 kbps Operation
If the Express XRT does not work when the DTE rate is set to 230.4
kbps inside Windows, verify the following:
1. Verify that dip switch 1 on the back of the Express XRT is set to
off (up).
2. Verify that a high speed serial card with a 16650 UART is being
used and the software drivers to support the extended baud
rate tables are installed.
Dial-Up Networking Difficulty
If Windows 95 Dial-Up Networking cannot talk to the Express
XRT, check the modem configuration for the Express XRT. Ensure
the bit rate for the DTE is set correctly. If the PC is not equipped
with a 16650 UART, then the fastest DTE operation speed is 115.2
kbps. Ensure the speed is not higher than the PC and modem can
support.