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LTE Module Series
EG95 Hardware Design
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VBAT
PWRKEY
≥ 30s
≥
650ms
RUNNING
Power-down procedure
OFF
Module
Status
STATUS
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.
module via PWRKEY pin.
Please refer to document [2] for details about the AT+QPOWD command.
In order to avoid damaging internal flash, please do not switch off the power supply when the module
works normally. Only after the module is shut down by PWRKEY or AT command, the power supply can
be cut off.
works normally. Only after the module is shut down by PWRKEY or AT command, the power supply can
be cut off.
3.8.
Reset the Module
The RESET_N pin can be used to reset the module. The module can be reset by driving RESET_N to a
low level voltage for 150ms ~ 460ms.
Table 8: Pin Definition of RESET_N
Pin Name
Pin No.
Description
DC Characteristics
Comment
RESET_N
17
Reset the module
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
NOTE