LTE Module Series
EG25-G Hardware Design
EG25-G_Hardware_Design 33 / 100
Switching on the power switch to supply power to USB_VBUS will wake up the module.
Please pay attention to the level match shown in dotted line between the module and the host. For more
details about EG25-G power management application, please refer to document [1].
3.5.2. Airplane Mode
When the module enters into airplane mode, the RF function does not work, and all AT commands
correlative with RF function will be inaccessible. This mode can be set via the following ways.
Hardware:
The W_DISABLE# pin is pulled up by default; driving it to low level will let the module enter into airplane
mode.
Software:
AT+CFUN command provides the choice of the functionality level through setting <fun> into 0, 1 or 4.
AT+CFUN=0: Minimum functionality mode. Both (U)SIM and RF functions are disabled.
AT+CFUN=1: Full functionality mode (by default).
AT+CFUN=4: Airplane mode. RF function is disabled.
1. The W_DISABLE# control function is disabled in firmware by default. It can be enabled by
AT+QCFG="airplanecontrol" command, and this command is under development.
2. The execution of AT+CFUN command will not affect GNSS function.
3.6. Power Supply
3.6.1. Power Supply Pins
EG25-G provides four VBAT pins to connect with the external power supply, and there are two separate
voltage domains for VBAT.
Two VBAT_RF pins for module’s RF part
Two VBAT_BB pins for module’s baseband part
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