Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 System description Page 20 of 156
Figure 2 describes the transition between the different operating modes.
If PSM mode is enabled,
if AT Inact ivit y Timer and
Act ive Tim er are expired
• Upon expirat ion of the
Periodic Updat e Timer
• Using PWR_ON pin
Incoming/out going dat a
or other dedicat ed device
network communication
No RF Tx/Rx in progress,
Communication 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 m ode is enabled,
if AT Inact ivit y Tim er is expired
Idle
Dat a received over UART
Figure 2: SARA-R4/N4 series modules operating modes transitions