Erco&Gener GENPRO 40E R2, User Manual

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EG_GenPro40e-R2_1006_UG_001_UK.doc Page 34 / 57
Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
5.3 LED GSM of the modem
The status of the modem is indicated by the status of the GSM LED situated on the back side of the modem.
This is the LED situated next to the SIM reader (see § 3.1.2 Front side).
The table below shows the signification of the different status of the LED GSM.
Table 7 : LED GSM of the modem
GSM LED status LED activity Modem status
ON LED fixed ON The modem is ready to work. It is recognized by the
network.
Flashing LED flashes slowly
(flashes every 5 s)
The modem is ON and is trying to attach to network.
LED flashes quickly
(flashes every 0.33 s – 3
Hz) The modem is in established communication.
LED flashes
(flashes every 1 s – 1
Hz) The modem is in low consumption mode. The RF module
is inhibited but the USB port is active. Also called
"airplane mode ". Send the command AT+CFUN=1 to
make the modem operational.
OFF LED OFF The modem is OFF or in RESET phase.
5.4 Echo function of AT commands deactivated
If no echo is returned when entering an AT command, it means that:
- The "local echo" of your communication software (like Hyperterminal) is not activated,
- The echo function of the modem has been deactivated.
The echo function can be configured with the command
ATE
. It requires a backup with the command
AT&W
.
To activate the echo function of the modem, enter the command
ATE1
.
When sending AT commands to the modem using a communication software, it is recommended to:
- Deactivate the "local echo" parameter in your communication software (like Hyperterminal),
- Activate the echo function of the modem (the command
ATE1
).
For a Machine to Machine communication with the modem, it is recommended to deactivate the echo
function of the modem (the command
ATE0
) in order to avoid the CPU receiving redundant responses.
For more information about the
ATE
commands, see the document "
4118014 AirPrime EM73xx-MC73xx AT
Command Reference
".