Turn Off The Module With Pwrkey; Turn Off The Module With At Command; Reset - Quectel EC200A Series Hardware Design

3.6.1. Turn off the Module with PWRKEY

Driving the PWRKEY to a low-level voltage for at least 650 ms, then the module will execute power-down
procedure after the PWRKEY is released. The timing of turning off the module is illustrated in the following
figure.
VBAT
PWRKEY
STATUS
(OD)
Module
Status

3.6.2. Turn off the Module with AT Command

It is safe to use AT+QPOWD command to turn off the module, which is equal to turn off the module via
PWRKEY Pin.
Please refer to document [2] for details about AT+QPOWD command.
.
NOTE
1. To avoid damaging internal flash, do not switch off the power supply when the module works
normally. Only after shutting down the module with PWRKEY or AT command can you cut off the
power supply.
2. When turning off module with the AT command, please keep PWRKEY at high level after the
execution of the command. Otherwise, the module will be turned on again after successfully
turn-off.

3.7. Reset

The module can be reset by driving the RESET_N low for at least 300 ms and then releasing it. The
≥ 650 ms
Running
Figure 12: Timing of Turning off Module
LTE Standard Module Series
≥ 2 s
Power-down procedure
OFF