Ublox SARA-R4 Series - Page 20

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 System description Page 20 of 157
Figure 2 describes the transition between the different operating modes.
If PSM mode is enabled,
if AT Inactivit y Timer and
Act ive Timer are expired
• Upon expirat ion of the
Periodic Update Timer
• Using PWR_ON pin
Incoming/outgoing data
or other dedicated device
network communication
No RF Tx/Rx in progress,
Communicat ion dropped
Remove VCC
Switch ON:
• PWR_ON
Not
powered
Power off
ActiveConnected
Deep
Sleep
Switch OFF:
• AT+CPWROFF
• PWR_ON
Apply VCC
If low power mode is enabled,
if AT Inact ivit y Timer is expired
Idle
Dat a received over UART
Figure 2: SARA-R4/N4 series modules operating modes transitions