Specifications

MC35i AT Command Set
2.9 AT^SMSO
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MC35i_ATC_V01.03 Page 43 of 444 5/7/04
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2.9 AT^SMSO Switch off mobile station
AT^SMSO initiates the power-off procedure. Low level of the module's VDD pin and the URC "^SHUTDOWN" ver-
ifies 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. Other-
wise, you run the risk of losing data. For further details on how to turn off the module see the [2].
Syntax
Unsolicited Result Code
^SHUTDOWN
Indicates that the power-off procedure is finished and the module will be switched off within 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.
Test Command
AT^SMSO=?
Response(s)
OK
Exec Command
AT^SMSO
Response(s)
^SMSO: MS OFF
OK
PIN ASC0 MUX1 MUX2 MUX3
! % % % %
Reference(s)
SIEMENS