Owner manual

GM862-QUAD / PY Software User Guide

1vv0300747 Rev. 3 - 10/07/07

3.4.1 Enabling/Disabling the power saving function

Send command

AT+CFUN=[<fun>[,<rst>]]

where:

Parameters:

<fun> - is the power saving function mode

0 - minimum functionality, NON-CYCLIC SLEEP mode: in this mode, the AT interface is not

accessible. Consequently, once you have set <fun> level 0, do not send further characters.

Otherwise these characters remain in the input buffer and may delay the output of an unsolicited

result code. The first wake-up event stops power saving and takes the ME back to full functionality

level <fun>=1.

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

<rst> - reset flag

0 - do not reset the ME before setting it to <fun> functionality level

•

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

<fun> 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 DTR functionality is usable only when +CFUN=5 is selected.