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FIBOCOM FG621-LA Series Hardware Guide
Page 41 of 57
6 Low Power Consumption
6.1 Flight Mode
Table 6-1 W_DISABLE# pin description
Pin Name
I/O
Pin#
Description
W_DISABLE#
DI
151
Module flight mode control (disabled and internal pulled
up by default)
FG621-LA series module supports two ways to enter flight mode:
Table 6-2 Ways of entering flight mode
1
Hardware I/O interface button
control
Send “AT+GTFMODE=1” to enable flight mode control
function. Pull up or float W_DISABLE# pin (pull up by
default), then the module enters normal mode, pull it down,
then the module enters flight mode.
2
AT command control
AT+CFUN=0--module enters flight mode
AT+CFUN=1--module enters normal mode
6.2 Sleep Mode
AT commands and WAKEUP_IN signal are used to set the module into sleep mode and wake up.
sleep mode:
Sent AT+GTLPMMODE=1,X Set the effective level of the WAKEUP_IN signal that sets the module into
sleep mode. Command is effective after resetting module.
(X=0, when WAKEUP_IN pin is high level, module will enter sleep mode;
X=1, when WAKEUP_IN pin is low level, module will enter sleep mode)
AT+CSCLK=1 Enable sleep mode function.
Wake up:
The module will be waked up when the pin level of WAKEUP_IN is opposite to the level that set the
module into sleep.
(X=1, when WAKEUP_IN pin is high level, module will be waked up;
X=0, when WAKEUP_IN pin is low level, module will be waked up)
The module will also be waked up by the incoming call or SMS.
