3 Application Interfaces
47
Table 30. Operating modes
The module is powered on, and it can be operated using the AT
commands through the serial port. The module is registered with the
network, there is no service processing in progress, and the module is
ready for communication. This is the default operating mode after the
module is powered on.
The PMU stops supplying power to the baseband and RF sections, the
software stops working, and the serial port is disabled. However, the
VBAT pin is still energized.
The module is powered on and successfully registered with the
network for service transmission. The module can be operated using
the AT commands through the serial port. The module transmits data.
When data transmission is completed, the module returns to the
standby mode.
The module is in light sleep state. It is connected to a network and can
receive paging messages. In this mode, the module can switch to the
standby mode.
The wireless communication of the module is turned off.
3.4.1 Flight Mode
Background
When it is necessary to turn off the transmission and reception of wireless signals to avoid
interference to the surrounding area, the flight mode can be enabled. When the module enters
flight mode, the RF function is disabled.
Entering mode
⚫ Hardware control:
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