Robustel GoRugged R3000 User Guide
RT_UG_R3000_v.3.0.3 04.02.2017 18 / 124
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Note: Please go to Services --> Advanced to set the User LED Type.
2.2 PIN Assignment
The SIM/NET/RSSI will blink to indicate the wrong status when the wireless module cannot
work normally. When the network is disconnected, those three signal LEDs are designed as a
binary combination code to indicate a series of error report.
Color Indicates: SIM-Green, NET-Green, RSSI-Green
Display Order: SIM, NET, RSSI
Meaning of Number: 1-Blink, 0-Off
100 module found but AT command failed
010 no SIM card inserted
110 need to enter the PIN code
001 need to enter the PUK code
101 registration failed
011 no module found
111 not support the module