1 enabling/disabling the power saving function, At+cfun=<fun><cr – Rainbow Electronics GM862-GPS User Manual

Page 55

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GM862-GPS Software User Guide

1vv0300729 Rev. 5 - 05/07/07

Reproduction forbidden w ithout Telit Communications S.p.A. w ritten authorization - All Rights Reserved

page 55 of 120

3.4.1.1 Enabling/Disabling the power saving function

send command

AT+CFUN=<fun><cr>

where:
<fun> 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 both 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
<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 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.

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