Siemens AC75 manual Sysstart Airplane Mode appears

AC75 AT Command Set

2.14 AT^SCFG

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Parameter <map> 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 <mapos> is "on" or "off". Parameter <map> is global for all interfaces, volatile and will not be reset by AT&F.

“on“	Activates Airplane mode and shuts down the radio part of the ME. The URC
	"^SYSSTART AIRPLANE MODE" appears.
“off“(P)	Deactivates Airplane mode, wakes up the radio part of the ME and restores
	access to network-dependent AT commands. The URC "^SYSSTART"
	appears.

<mapos>(str)(+CSCS)

MEopMode/Airplane: Airplane mode upon ME restart

There are two ways to enter Airplane mode upon restart: One is using AT^SCFG with <mapos> as described below.

Another approach is configuring the ME to restart into Airplane mode at a scheduled time. In this case, use the AT+CALA 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 <mapos> was set "on" or "off".

Parameter <mapos> is global for all interfaces, non volatile and will not be reset by AT&F.

“on“	Causes the ME to enter the Airplane mode each time the ME is restarted or
	reset.
	After restart or reset, the URC "^SYSSTART AIRPLANE MODE" appears and
	parameter <map> is "on". The SIM PIN can be entered using the AT+CPIN
	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 "^SSIM READY"
	URC and store its presentation mode to the user profile with AT&W.
	To return from Airplane mode to Normal mode set the parameter <map> 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.

<msi>(str)(+CSCS)

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 AT^SMSO command, i.e. the ME performs an orderly shutdown and issues the "^SHUTDOWN" 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 [2].

Parameter <msi> is global for all interfaces, non-volatile and will not be reset by AT&F.

“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.

AC75_ATC_V01.002	Page 66 of 569	10/30/06
Confidential / Released