Reset The Module - Quectel LTE-A Series Hardware Design

NOTES
1. To avoid damages to the internal flash, please do not switch off the power supply directly when the
module is working. Only after the module is shut down by PWRKEY or AT command can the power
supply be cut off.
2. When turning off the module with AT command, please keep PWRKEY at high level after execution
of the power-off command. Otherwise, the module will be turned on again after a successful
turning-off.

3.7. Reset the Module

The module can be reset by driving RESET_N pin to a low level voltage for 250ms~600ms and then
releasing it.
Table 9: RESET_N Pin Description
Pin Name Pin No.
RESET_N 1
An open drain/collector driver or button can be used to control the RESET_N pin. A reference circuit is
shown as below.
250ms~600ms
Reset pulse
Figure 15: Reference Circuit of RESET_N with a Driving Circuit
EG18_Hardware_Design
Description
Reset the module
4.7K
DC Characteristics
V max=2.1V
IH
V min=1.3V
IH
V max=0.5V
IL
RESET_N
47K
LTE-A Module Series
EG18 Hardware Design
Comment
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