Mapos, Ac75 at command set – Siemens AC75 User Manual
Page 66
AC75 AT Command Set
2.14 AT^SCFG
s
AC75_ATC_V01.002
Page 66 of 569
10/30/06
Confidential / Released
Parameter
allows entering or leaving the Airplane mode any time during operation, eliminating the need
to enter the SIM PIN again. It can be used no matter whether the parameter
is "on" or "off".
Parameter
is global for all interfaces, volatile and will not be reset by
.
“on“
Activates Airplane mode and shuts down the radio part of the ME. The URC
"
" appears.
“off“
(P)
Deactivates Airplane mode, wakes up the radio part of the ME and restores
access to network-dependent AT commands. The URC "
appears.
MEopMode/Airplane: Airplane mode upon ME restart
There are two ways to enter Airplane mode upon restart: One is using
as described
below.
Another approach is configuring the ME to restart into Airplane mode at a scheduled time. In this case, use the
command, set an alarm time and then switch the ME off. When the alarm time is reached the ME
wakes up to Airplane mode, no matter whether
was set "on" or "off".
Parameter
is global for all interfaces, non volatile and will not be reset by
“on“
Causes the ME to enter the Airplane mode each time the ME is restarted or
reset.
After restart or reset, the URC "
" appears and
parameter
is "on". The SIM PIN can be entered using the
command. This enables the ME to read data from the SIM and give access to
SIM PIN dependent AT commands which are available in Airplane mode, such
as phonebook commands or several SMS commands. To notify the user when
SIM data are accessible it is recommended to activate the "
URC and store its presentation mode to the user profile with
To return from Airplane mode to Normal mode set the parameter
to "off"
as described above. If PIN authentication was already done, the ME will try
now to register to the GSM network.
“off“
(P)
Airplane mode will not be activated after ME restart or reset.
MEShutdown/OnIgnition: Enable/disable shutdown by IGT line
The parameter specifies two different switching modes of the ignition line IGT: The line may either be used only
to switch on the ME, or to switch it on and off.
By factory default the module's IGT line is configured only for switching on the ME. We recommend that great
care be taken before changing the switch mode of IGT. It is of vital importance that the following conditions are
met to ensure that IGT works properly as ON/OFF switch:
Switch-on condition: If the ME is off the IGT line must be asserted for at least 400 ms and then released.
Switch-off condition: If the ME is on the IGT line must be asserted for at least 1 s and then released. The switch-
off routine is identical with the shutdown procedure initiated by the
command, i.e. the ME performs an
orderly shutdown and issues the "
" URC.
Before switching off the ME wait at least 2 seconds after startup.
Furthermore, particular attention shall be given to the USB interface and the DTR signal: The USB interface and
the DTR line shall either be decoupled from IGT to avoid unintentional shutdown of the ME, or require special
precautions if you wish to restart the ME by plugging the USB cable or to toggle IGT from DTR. For further details
please refer to
Parameter
is global for all interfaces, non-volatile and will not be reset by
.
“on“
Ignition line (IGT) can be used to switch on and off the ME.
“off“
Ignition line (IGT) can be used to switch on the ME.
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