Troubleshooting: Specific Defaults Possibly Encountered; The Modem Does Not Answer Through The Serial Link - Wavecom WMO2 GSM 900 User Manual

5. TROUBLESHOOTING: Specific defaults possibly encountered

5.1

The modem does not answer through the serial link

A) Is the modem correctly powered on?
If not, the correct power supply is 5 to 32V (GSM 900) - 6 to 32V (GSM 1800/1900).
B) Is the serial cable suitable and adjusted in the modem and PC sockets?
A suitable cable must follow pin assignment described on figure 6.
Check in particular, that Rx et Tx are properly connected.
C) Check that your communication program is properly configured:
Modem factory setting for the character framing are:
Data Bits
Parity
Stop Bits
The factory setting for baud rate is autobauding mode.
D) Does any other program interfere with your communication program (conflict on communication port access)?
If yes, close any application likely to interfere (e.g. mouse or printer driver).
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15 19/04/99, 9:22