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SARA-R4 series-AT commands manual
UBX-17003787 - R16
15Power management
Page 181 of 401
15Power management
15.1Power saving control (Power SaVing) +UPSV
+UPSV
SARA-R410M-02B SARA-R410M-52B SARA-R410M-63B SARA-R410M-73B SARA-R410M-83B
SARA-R412M
Modules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial No NVM No - +CME Error
15.1.1Description
Sets the UART power saving configuration, but it has a global effect on the module power saving configuration:
If the power saving is enabled (+UPSV: 4), the UART interface is disabled after 6 s of inactivity and the
module enters the idle mode automatically whenever possible
If the power saving is disabled (+UPSV: 0), the UART interface is always enabled and the module does not
enter the idle mode
15.1.2Syntax
Type Syntax Response Example
Set AT+UPSV=<mode> OK AT+UPSV=4
OK
Read AT+UPSV? +UPSV: <mode>
OK
+UPSV: 0
OK
Test AT+UPSV=? +UPSV: (list of supported <mode>s)
OK
+UPSV: (0,4)
OK
15.1.3Defined values
Parameter Type Description
<mode> Number Power saving configuration. Allowed values:
0 (default and factory-programmed value): power saving disabled
4: power saving is controlled by the UART TX line activity
15.1.4Notes
For a detailed explanation of modules' operating modes, modules and interfaces behavior in reference to
the +UPSV command setting, see the corresponding system integration manual.
SARA-R410M-02B
The command is not supported by SARA-R410M-02B-00.
15.2Power Saving Mode Setting +CPSMS
+CPSMS
Modules All products
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial Yes NVM / OP No < 10 s +CME Error
15.2.1Description
Controls the setting of the UEs power saving mode (PSM) parameters. The command controls whether the UE
wants to apply PSM or not, as well as:
the requested extended periodic RAU value in GERAN/UTRAN
the requested GPRS READY timer value in GERAN/UTRAN