Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 System description Page 16 of 119
Figure 2 describes the transition between the different operating modes.
If PSM mode is enabled,
if AT Inact ivit y Tim er and
Act ive Tim er are expired
• Upon expirat ion of t he
Periodic Updat e Tim er
• Using PWR_ON pin
Incom ing/out going dat a
or ot her dedicat ed device
net work com m unicat ion
No RF Tx/Rx in progress,
Comm unicat ion dropped
Remove VCC
Swit ch ON:
• PW R_ON
Not
powered
Power off
Act iveConnect ed
Deep
Sleep
Swit ch OFF:
• AT+CPW ROFF
• 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