Users Manual

LTE Standard Module Series
EC25 Hardware Design
EC25_Hardware_Design
40
/ 130
Figure 6: 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 shown in dotted line between the module and the host. For more
details about EC25 power management application, please refer to document [1].
3.5.2. Airplane Mode
When the module enters airplane mode, the RF function will be disabled, and all AT commands related to
it 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 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.
2. The execution of AT+CFUN command will not affect GNSS function.
NOTES
NOTE