LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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Figure 11: Power-down Timing
（
AT Command & PON_TRIG
）
.
3.10. Reset
The module can be reset by driving RESET_N low for at least 100 ms and releasing it. The RESET_N
signal is sensitive to interference, so it is recommended to route the trace as short as possible and
surround it with ground.
Table 10: Pin Definition of RESET_N
The recommended circuit is similar to the PWRKEY control circuit. An open drain/collector driver or button
can be used to control RESET_N.
1. To avoid damaging the internal flash, do not switch off the power supply when the module works
normally. Only after the module is turned off by PWRKEY & PON_TRIG or AT command &
PON_TRIG, the power supply can be cut off.
2. When turning off themodule with AT command, keep PWRKEY at a high level after the execution of
power-off command. Otherwise, the module will be turned on again after turned off.
Reset the module.
Internally pulled up with a 470 kΩ resistor.
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