Product Info

LTE Standard Module Series
EG95 Series Hardware Design
EG95_Series_Hardware_Design
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NOTES
1. Please make sure that VBAT is stable before pulling down PWRKEY pin. It is recommended that
the time between powering up VBAT and pulling down PWRKEY pin is no less than 30ms.
2. PWRKEY can be pulled down directly to GND with a recommended 10 kΩ resistor if module needs
to be powered on automatically and shutdown is not needed.
3.7.2. Turn off Module
The following procedures can be used to turn off the module normally:
• Use the PWRKEY pin.
• Use AT+QPOWD command.
3.7.2.1. Turn off Module Using the PWRKEY Pin
Driving the PWRKEY pin to a low level voltage for at least 650ms, the module will execute power-off
procedure after the PWRKEY is released. The power-off scenario is illustrated in the following figure.
VBAT
≥ 650 ms
≥ 30 s
PWRKEY
STATUS
Module
Status
RUNNING
Power-down procedure
OFF
Figure 13: Timing of Turning off Module
3.7.2.2. Turn off Module Using AT Command
It is also a safe way to use AT+QPOWD command to turn off the module, which is similar to turning off the
module via PWRKEY pin.
Please refer to document [2] for details about the AT+QPOWD command.