User guide

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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO&GENER reserves the right to make any modifications.
In the case where no communication can be established with the modem:
▪ Check the USB connection between the DTE and the modem (DCE),
▪ Check the configuration of the DTE COM port.
Example of AT commands that can be sent once the communication with the modem is validated
(commands detailed in the following paragraphs) :
▪ AT+CGSN : the reply of the modem must be a 15-digit number (beginning with
"35411802xxxxxxxx") when the serial link is correct.
▪ AT+CPIN="xxxx" : enter the code of the SIM card xxxx (if activated).
▪ AT!BAND? : check the selected frequency.
▪ AT+CSQ : check the reception level of the GSM signal received with the SIM card inserted.
▪ AT+CREG ? : check the registration of the modem on the network.
▪ ATD<numéro de téléphone> : start a data call.
▪ ATH : hang-up (end of the call).
For more information about these AT commands and their associated parameters, please refer to the
"Commands List" document of ERCO & GENER.
5.1.5 SIM card Extraction
To remove the SIM card from the modem, it is recommended to do the following operations with the modem
turned off:
- Remove the SIM card cover on the rear side.
- Press the SIM card (simple pressure) until hearing a "clic" that ensures its ejection.
- Remove delicately the SIM card from the reader.
- Replace the SIM cover.
- Do a Reset or an On/Off to take it into account.