Siemens Brodersen MC55 AT - Manual (Page 42)

MC55_ATC_V04.00 Page 42 of 475 3/17/06
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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
" 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
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.
Test Command
AT^SMSO=?
Response(s)
OK
Exec Command
AT^SMSO
Response(s)
^SMSO:
MS OFF
OK
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last
SIEMENS ! % % % % % % % %