Product Info

LPWA Module Series
BC66-NA Hardware Design
BC66-NA_Hardware_Design 28 / 59
PWRKEY cannot be pulled down all the time, otherwise the module will not be able to enter into PSM.
3.7.2. Turn off
BC66-NA can be powered off though any of the following methods:
 Power off by AT+QPOWD=0.
 In emergent conditions, the module can be powered off through disconnecting VBAT power supply.
 The module will be powered off automatically when VBAT drops below 2.1V.
Figure 10: Power down Timing (Power off by AT Command)
Figure 11: Power down Timing (Power off by Disconnecting VBAT)
NOTE