Checking The Communication With The Modem; Resetting The Modem - Wavecom Technical data M1306B User Manual

5.1.3 Checking the communication with the modem

Connect the RS232 link between the DTE (port COM) and the modem
!
(DCE).
Configure the RS232 port of the DTE as follows:
!
!
!
!
!
!
Using a communication software such as Hyperterminal, enter the
!
AT ↵ command. The response of the modem must be OK displayed in
the Hyperterminal window.
If the communication cannot be established with the modem, do the
!
following:
!
!
! Example of AT commands which can be used after getting started the
modem:
!
!
!
!
!
!
For further information about these AT commands and their associated
parameters, refer to document [1].

5.1.4 Resetting the modem

For resetting the modem, a hardware reset signal is available on pin 14 of the
Sub HD 15-pin connector (RESET).
The reset of the modem is carried out when this pin is low for at least 500 µs.
WARNING: This signal has to be considered as an emergency reset only. For
further details about the reset of the modem, refer to paragraph 7.6.
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Bits per second: 115.200 bps,
Data bits: 8,
Parity: None,
Stop bits: 1,
Flow control: hardware.
Check the RS232 connection between the DTE and the
modem (DCE),
Check the configuration of the port COM used on the DTE.
AT+CGMI : modem answer is "WAVECOM MODEM" when
serial link is OK.
AT+CPIN=xxxx : to enter a PIN code xxxx (if activated).
AT+CSQ : to verify the received signal strength.
AT+CREG? : to verify the registration of the modem on the
network.
ATD<phone number>; : to initiate a voice call.
ATH : to hang up (end of call).
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20th July 2004
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