Quectel M10, Hardware Design, Page: 36 / 81

M10 Hardware Design
M10_HD_V3.0 - 35 -
3.4.3. Restart module using the PWRKEY pin
Customer’s application can restart the module by driving the PWRKEY to a low level voltage for
certain time, which is similar to the way to turn on the module. Before restarting the module, at least
500ms should be delayed after detecting the low level of STATUS. The restart scenario is illustrated
as the following figure.
Figure 12: Timing of restarting system
The module can also be restarted by the PWRKEY after emergency shutdown.
PWRKEY
（
INPUT
）
Pulldown > 20ms
Delay>2s
EMERG_OFF
（
INPUT
）
Figure 13: Timing of restarting system after emergency shutdown