User's Manual

LTE Module Series
EC25Hardware Design
EC25_Hardware_DesignConfidential / Released 50 / 90
Table 19: Pin Definition of STATUS
Pin Name Pin No. I/O Description Comment
STATUS 61 OD Indicate the module operation status Require external pull-up
The following figure shows different circuitdesigns of STATUS, and you can choose either one according
to your application demands.
Figure 26: Reference Circuits of STATUS
3.16. Behavior of the RI
AT+QCFG=“risignaltype”,“physical”command can be used to configure RI behavior.
No matter on which port URC is presented, URC will trigger the behavior of RI pin.
URC can be output from UART port, USB AT port and USB modem port by AT+QURCCFG command.
The default port is USB AT port.
In addition, RI behavior can be configured flexibly. The default behavior of the RI is shown as below.
Table 20: Behavior of the RI
State Response
Idle RI keeps in high level
URC RI outputs 120ms low pulse when new URC returns
NOTE