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LTE-A Module Series
EG18 Hardware Design
EG18_Hardware_Design 35 / 104
The following figure shows the connection between the module and the host.
USB_VBUS
USB Interface
VDD
USB Interface
Module
Host
RI
EINT
Power
Switch
GPIO
GND
GND
Figure 7: Sleep Mode Application without Suspend Function
Switching on the power switch to supply power to USB_VBUS will wake up the module.
Please pay attention to the level match of the connection shown in dotted line between the module and
the host.
3.4.2. Airplane Mode
EG18 provides a W_DISABLE# signal to disable or enable airplane mode through hardware operation.
The W_DISABLE# pin is pulled up by default. Driving it to low level will make the module enter into
airplane mode.
In airplane mode, RF function will be disabled. The RF function can also be enabled or disabled through
AT commands. The following table shows the RF function status of the module and relevant AT
commands.
Table 6: RF Function Status and Relevant AT Commands
W_DISABLE# AT Commands
RF Function
Module Operation
High Level
AT+CFUN=1
RF Enabled
Normal operation mode
AT+CFUN=0
AT+CFUN=4
RF Disabled
AT+CFUN=0
: Minimum functionality mode
AT+CFUN=4
: Airplane mode
NOTE