nrf9160 CFUN=4 PSM network signalling

[plotkin1996]

Hello,

Does nrf9160 mfw1.3.5 perform RACH and network signalling after receiving a CFUN=4 command while in PSM? If so, is it possible to put it offline without turning on RF circuits first?

What I'm trying to do is to force-disable RF communication when I know it will result in a brownout (i. e. temperature is low and battery internal resistance is increased).

[Simonr]

Hi again

Yes, that must be CFUN=4 causing the power spike you're seeing. But we don't think you need to do this, as the modem will already turn off if it detects that the voltage drops too low. You should also be able to change the voltage level where the modem shuts down with %XVBATLOWLVL if I recall correctly.

Best regards,

Simon