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FIBOCOM MC610 Series Hardware Guide 32/70
Table 3-7 Module shutdown mode
Shutdown when VBAT voltage
is too low or powered down
At this time, the module does not follow the normal
shutdown process or the process of logging off from
the base station.
Lowering PWRKEY (more than
3.1 s), and then releasing
1. When the module works normally, do not cut off the power supply of the module immediately, to avoid
damaging the Flash inside the module. It is strongly recommended to turn off the module through
PWRKEY or AT command before disconnecting the power supply.
2. When the AT command is shut down, it is not applicable to automatic startup.
3.3.2.1 Shutdown Timing Sequence
Figure 3-7 Shutdown timing sequence control chart