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Getting Started with HC15
Confidential / Preliminary
s
HC15_startup_v01
Page 16 of 31
2007-01-22
3.2
Switching on the HC15
The HC15 can be started by pressing the IGT key of the DSB75. Please wait approximately
2 seconds before using the module, for example before entering AT commands.
Disconnecting and plugging the USB cable during operation is not supported.
3.3
Switching off the HC15
To shut down the HC15 module, enter the AT^SMSO command. This enables the ME to
save all data and perform an orderly shutdown.
AT^SMSO
OK
The ME switches off.
The HC15 module can also be switched off by using the IGT line as described in [1] (see
AT^SCFG) and [1] (see section “Configuring the IGT Line for Use as ON/OFF Switch”).
3.4 Registering
to the Network
Make sure to operate the HC15 always with the UICC card inserted in the DSB75 card
reader and a valid SIM PIN entered. This is because most AT commands require SIM PIN
authentication.
Write command: AT+CPIN=<pin>[, <new pin>]
at+cpin?
+CPIN: SIM PIN
OK
at+cpin=1234
OK
at+cpin?
+CPIN: READY
OK
Entering the SIM PIN.