LTE Standard Module Series
turned on normally, the STATUS will present the low state. Except for this, the STATUS will present
high-impedance state.
The following figure shows different circuit designs of STATUS, and you can choose either one according
to the application demands.
VDD_MCU
33 K
Module
STATUS MCU_GPIO
Module
STATUS
VBAT
2.2 K
Figure 27: Reference Circuits of STATUS
4.9. Behaviors of the MAIN_RI
AT+QCFG="risignaltype","physical" can be used to configure MAIN_RI behaviors.
No matter on which port a URC is presented, the URC will trigger the behaviors of MAIN_RI pin.
The URC can be outputted via UART port, USB AT port and USB modem port, which can be set by
AT+QURCCFG. The default port is USB AT port.
In addition, MAIN_RI behavior can be configured flexibly. The default behavior of the MAIN_RI is shown
as below.
The status pin cannot be used as indication of module shutdown status when VBAT is removed.
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