Product Info

LTE Standard Module Series

EC25 Series Hardware Design

EC25_Series_Hardware_Design 42 / 134

USB_VBUS

USB_DP

USB_DM

AP_READY

VDD

USB_DP

USB_DM

GPIO

Module Host

EINT

Power

Switch

GPIO

GND

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