Robustel GoRugged R2000 User Guide
RT_UG_R2000_v.1.2.0 15.12.2015 15 /120
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2.2 LED Indicators
Note: User can select display status of USR LED. For details please refer to 3.20 Service->Advanced section.
PPP Indicator: PPP connection is up.
PPP Indicator: PPP connection is down.
SIM: using backup SIM card.
NET: register to a low level network.
SIM: working fine.
NET: working fine.
OpenVPN: OpenVPN is connected.
IPSec: IPSec is connected.
GRE: GRE is connected.
OpenVPN: OpenVPN is disconnected.
IPSec: IPSec is disconnected.
GRE: GRE is disconnected.
Signal level: 21-31 (Perfect signal level).
Signal level: 11-20 (Average signal level).
Signal level: 1-10 (Exceptional signal level).
When the network is disconnected, those three signal LEDs are designed as a binary combination code to
indicate a series of error report.
(Green Yellow Red) On: 1 Off: 0
001 AT command failed
010 no SIM card detected
011 it need to enter the PIN code
100 it need to enter the PUK code
101 registration failed
110 something wrong happened in the module