ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev. 11 Page 81 of 1039 2021-09-23
do not reset the ME before setting it to <fun>
functionality level.
reset the ME before setting it to <fun> functionality level,
this option works only with <fun> =1, with other it will
return an error
<fun>=0
NON-CYCLIC SLEEP mode, minimum functionality: the AT interface
is not accessible by UART. Consequently, once you have set <fun>=0,
do no 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.
<fun>=5
To place the module in power saving mode set <fun>= 5 and the DTR
line to OFF. Once in power saving, the CTS line switch to the
OFF status to signal that the module is really in power saving
condition.
During the power saving condition, before sending any AT command
on the serial line, the DTR line must be set to ON to exit from power
saving and it must be waited for the CTS line to go in ON status.
Until the DTR line is ON, the module will not return in the power
saving condition.
Issuing AT+CFUN=4[,0] causes the module to perform either a
network deregistration and a SIM deactivation.