Product Info

LTE Standard Module Series
EC25 Series Hardware Design
EC25_Series_Hardware_Design 68 / 134
3.18. STATUS
The STATUS pin is an open drain output for indicating the module’s operation status. It can be connected
to a GPIO of DTE with a pull-up resistor, or as LED indication circuit as below. When the module is turned
on normally, the STATUS will present the low state. Otherwise, the STATUS will present high-impedance
state.
Table 22: Pin Definition of STATUS
The following figure shows different circuit designs of STATUS, and customers can choose either one
according to customers’ application demands.
VDD_MCU
10K
Module
STATUS MCU_GPIO
Module
STATUS
VBAT
2.2K
Figure 30: Reference Circuits of STATUS
The status pin cannot be used as indication of module shutdown status when VBAT power supply is
removed.
3.19. Behaviors of RI
AT+QCFG="risignaltype","physical" command can be used to configure RI behavior.
No matter on which port a URC is presented, the URC will trigger the behaviors of RI pin.
Pin Name
Pin No.
I/O
Description
Comment
STATUS
61
OD
Indicate the module’s operation status
An external pull-up resistor
is required.
If unused, keep it open.
NOTE