LTE Module Series
EG95 Hardware Design
EG95_Hardware_Design 47 / 81
A reference circuit is shown as below.
4.7K
47K
VBAT
2.2K
Module
STATUS
Figure 29: Reference Circuit of STATUS
3.16.
Behaviors of 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 outputted from UART port, USB AT port and USB modem port through configuration via
AT+QURCCFG
command. The default port is USB AT port.
In addition, RI behavior can be configured flexibly. The default behaviors of the RI are shown as below.
Table 19: Default Behaviors of RI
State
Response
Idle
RI keeps at high level
URC
RI outputs 120ms low pulse when a new URC returns
The default RI behaviors can be changed by
AT+QCFG="urc/ri/ring"
command. Please refer to
document [2]
for details.
NOTE