Cavli Wireless C100QM - 3.9 Network Status Indication Interface

Cavli Wireless C100QM/C10QM Hardware Manual
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please refer to C100QM/C10QM AT command set.
3.9 Network status indication interface
The C100QM/C10QM module provides an open-drain GPIO signal to indicate the status
of the RF communication.
Table 3-14 Network indicator pin definition
Pin
Signal name
I/O
description
6
NET_STATUS
OD
Network status indication
Table 3-15 Network indication status
status
LED display status
no service
Constantly bright
Module registration on non-4G network
Double 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 3-18 Network indicator circuit diagram
The brightness of the network indicator can be adjusted by adjusting the current
limiting resistor R, which can be adjusted to a maximum of 40 mA.