Product Info

LTE-A Module Series
EM06 Hardware Design
EM06_Hardware_Design 23 / 63
3.4.1.1. Turn on the Module Through GPIO Controlled FULL_CARD_POWER_OFF#
It is recommended to use a GPIO from host to control FULL_CARD_POWER_OFF#. A simple reference
circuit is illustrated in the following figure.
Module
Host
GND
GND
GPIO
FULL_CARD_POWER_OFF#
3.3V
Figure 6: Turn on the Module Through GPIO Controlled FULL_CARD_POWER_OFF#
3.4.1.2. Turn on the Module Automatically
If FULL_CARD_POWER_OFF# is pulled up to 3.3V with a 5kΩ~10kΩ resistor, the module will be
powered on automatically when the power supply for VCC is applied, and will be powered off when the
power supply is removed.
A reference circuit is shown in the following figure.
Module
FULL_CARD_POWER_
OFF#
10K
3.3V
Figure 7: Turn on the Module Automatically