Telit Wireless Solutions ME910C1 Series Quick Start Manual page 25

Here below a simple script shows the AT#CPSMS functionalities.
AT+COPS?
+COPS: 1,0,"Vodafone@",9
OK
AT#CPSMS?
#CPSMS: 0
OK
AT#CPSMS=1,0,0,120,20
OK
A TAU (Tracking Area Update) is triggered, timer negotiation with the network starts; the
procedure is fast, unsolicited are disabled we suggest to wait about 2s before proceeding with
the next step
AT#CPSMS?
#CPSMS: 1,20,4200
OK
Timers T3412 and T3324 start when module move from CONNECTED state to IDLE state
(RRC Connection Release).
TIMERS START POINT (RRC Connection release)
. . .
20s
. . .
Active Time T3324 EXPIRE
The module enters automatically in PSM sleep (module turns off)
E.g. let's assume that at a certain point in time the user wants to use the module to send data;
it is possible even if the module is in PSM; the user can wake module up with ON_OFF pin
(see turn on procedure defined in HW user guide)
+CEREG: 0
+CEREG: 2
+CEREG: 5,"FFFE","99EE71",9
The module is just turned on and it does not interact with the network, the T3412 timer is still
running from TIMERS START POINT
AT#SGACT=1,1
#SGACT: 10.21.115.40
OK
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Module is NB-IoT registered
PSM feature is OFF
Enable PSM feature: T3412=120s, T3324=20s
Values that will apply: T3412=4200s, T3324=20s
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