Product Info

LTE Standard Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design
35
/ 80
3.10. Control and Indication Signals
The following table shows the pin definition of control and indication signals.
Table 12: Pin Definition of Control and Indication Signals
3.10.1. RI Signal
The RI signal can be used to wake up the host. When a URC returns, there will be the following behaviors
on the RI pin after executing AT+QCFG="risignaltype","physical".
Figure 11: RI Behaviors
Pin Name Pin No. I/O Power Domain Description
RI 17 DO 3.3V Output signal used to wake up the host
DTR 31 DI 3.3V Sleep mode control
W_DISABLE# 20 DI 3.3V
Airplane mode control;
Pulled up by default;
Active low.
PERST# 22 DI 3.3V
Fundamental reset signal;
Active low.
LED_WWAN# 42 OC
LED signal for indicating the network
status of the module;
Active low.
WAKE# 1 OC Output signal to wake up the host.