Siemens MC55 AT manual Atsmso Switch off mobile station, Atsmso=?, Smso MS OFF OK, Shutdown

2.9AT^SMSO Switch off mobile station

AT^SMSO initiates the power-off procedure. Low level of the module's VDD pin and the URC "^SHUTDOWN" notify that the procedure has completed and the module has entered the POWER DOWN mode. Therefore, be sure not to disconnect the operating voltage until VDD is low or until the URC "^SHUTDOWN" is displayed. Otherwise, you run the risk of losing data. For further details on how to turn off the module see the [2].

Syntax

Test Command

AT^SMSO=?

Response(s)

OK

Exec Command

AT^SMSO

Response(s)

^SMSO: MS OFF OK

Reference(s)

SIEMENS

PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last

! % % % % % % % %

Unsolicited Result Code

^SHUTDOWN

Indicates that the power-off procedure is finished and the module will be switched off in less than 1 second.

Notes

•Do not send any other AT command after AT^SMSO.

•If AT^SMSO is entered on one of the Multiplexer channels the ME closes the Multiplexer channels, terminates the Multiplexer and deactivates all other functions. Then, the URC "^SHUTDOWN" will be issued on the phys- ical serial interface (ASC0). The URC will be transmitted at the bit rate last activated on ASC0 for use with the Multiplex driver.

•If both interfaces ASC0 and ASC1 are connected the URC appears on both of them.

MC55_ATC_V04.00	Page 42 of 475	3/17/06
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