Erco & Gener GenPro 53e, User Manual

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EG_GenPro53e_1040_UG_003_UK Page 32 / 71
Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO&GENER reserves the right to make any modifications
5.3.4 Led 5
This led is free. It is left at the user’s disposal. It is controlled via a command through the ARM. This
command is currently under development. Contact us.
5.3.5 LED 6
This led is not used.
5.4 Echo function of the deactivated AT commands
The modem contains the EGM standard library (see the documents "EG_EGM_CL_xxx_yy" of ERCO &
GENER) in this case, 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 set with the command
ATE
, it requires a back-up 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 communication Machine to Machine 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 "EG_EGM_CL_xxx_yy" of ERCO &
GENER.
5.5 Checking the quality of the GSM reception signal
The modem contains the EGM standard library (see the documents "EG_EGM_CL_xxx_yy" of ERCO &
GENER) in this case, the modem will be able to make a call only if the received GSM signal is sufficient.
The command
AT+CSQ
allows to know the reception level (
rssi
) of the signal sent by the closest GSM Base
Transceiver Station (BTS), as well as the reception error code (
g
).
When the SIM card is inserted and the PIN code entered, the command
AT+CSQ
allows to measure the
signal from the BTS of the subscribed operator network..
This command can also be used without the SIM card, it indicates in this case the nearest BTS which can be
ORANGE, SFR or BOUYGUES for France (Without SIM card, the current subscription is not recognized).It is
therefore advisable to do the measure when the SIM card is present.