CLM920_NC3_LTE Module Hardware User Guide
Shang Hai YUGE Information Technology co., LTD
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Table 3-13 Network indication status
Status
LED display status
No service
Constantly bright
Module registration on non-4G network
Slow flash
The module registers 4G network or module to
register non-4G network for voice SMS and
other services.
Flashing
The LED network indicator reference design is as follows:
Figure 3-16 Network indicator circuit diagram
The brightness of the LED lamp can be adjusted by adjusting the value of the current limiting resistor,
and the current can be adjusted to a maximum of 40 mA.
3.10 RF antenna interface
The CLM920_NC5 Mini PCIE module is designed with three antenna interfaces, one main set antenna,
one diversity antenna and one GNSS antenna. 4G recommends connecting a diversity antenna to limit
high-speed movement and signal degradation caused by multipath.
3.10.1 RF connector position
Figure 3-17 Location of the RF connector