Rainbow Electronics GE863-GPS low power - Manual (Page 56)

GE863-GPS Software User Guide
1vv0300724 Rev. 3 - 05/07/07
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3.4.1.1 Enabling/Disabling the power saving function
•
send command AT+CFUN=
where:
is the power saving function mode, the supported values are:
0 - minimum functionality, NON-CYCLIC SLEEP mode: in this mode, the AT interface is not
accessible.
1 - mobile full functionality with power saving disabled (factory default)
2 - disable TX
4 - disable either TX and RX
5 - mobile full functionality with power saving enabled
•
wait for response:
Response Reason Action
OK The power save is now active
ERROR some error occurred Enable extended result codes
(see par. 2.5.2.1), and retry.
+CME ERROR: 4 operation not supported Check command syntax and
value.
TIP: The power saving function is disabled by default when the device starts up, in order to
guarantee that even without the DTR line support it is possible to exchange commands with
the module; for this reason the power saving setting command shall be issued after every
power up.
NOTE: The power saving for GSM part will not be activated if the GPS part is switched on.
The DTR functionality is usable only when +CFUN=5 is selected.