2.5 Overview of LED Indicators

DEVICE STATUS

Indicates the general system status.

• Blue – device status OK, device operational

• Blue, slow flashing – device error that does not affect the full functionality of the device

• Red – temporary error (to be solved automatically, e.g. provider service failure)

• Red, slow flashing – permanent error (admin intervention is required, e.g. via the device web interface)

• Red, fast flashing – HW error, on-site service intervention is required (e.g. DSL short-circuit, battery error/defect)

POWER

Indicates the general power supply status.

• Blue – external supply is progress, battery is kept charged

• Blue, short flashing – external supply in progress, low battery life 

• Blue, slow flashing – external supply in progress, battery is being charged (90–100 %)

• Blue, fast flashing – external supply in progress, battery is being charged (0–90 %)

• Red – battery supply in progress, battery capacity over 50% 

• Red, slow flashing – battery supply in progress, battery capacity below 50% 

• Red, fast flashing – battery supply in progress, battery capacity critically low (less than 10 %) 

• No light indication – battery disconnected

CELLULAR NETWORK

Indicates the mobile network connection status

• Permanently on – SIM OK, Internet connection available. The LED color signals the network technology used: 
  • Yellow – 2G 
  • Green – 3G 
  • Blue – 4G 

Slow network LED flashing indicates that the SIM card and registration are OK, but  the Internet connection is unavailable.  

•  Red, slow flashing – SIM OK, network search in progress 

•  Red, fast flashing – SIM error (PIN unset or card rejected by network) 

•  No light indication – SIM not inserted 

SIGNAL STRENGTH

Indicates the signal strength.

• Blue – strong signal (> = −80 dBm) 

• Green – medium signal (< = −80 dBm) 

• Red – weak signal (< −100 dBm) 

• No light indication – no signal (< −110 dBm) 

MOBILE DATA

Indicates the Internet availability via a module. 

• Blue – connection is working 

• Red – connection is not working 

• No light indication – connection is disabled (in configuration) 

WAN

Indicates the Internet availability via WAN. 

• Blue – connection is working 

• Red – connection is not working 

• No light indication – connection is disabled (in configuration) 

MOBILE DATA and WAN LEDs combined indicate the general Internet status: 

• • Permanently on – active primary connection 
  • Slow flashing – active backup connection 
  • Fast flashing – Internet connection unavailable 

CABIN SWITCH 1 & 2

Indicates the states of connected cabin switches 1, 2.

• Blue – voltage OK, connected 

• Blue, slow flashing – disconnected (no consumption) 

• Red – voltage warning (overconsumption, current > 750 mA) 

• Blue – voltage OK, connected  

• Blue, slow flashing – voltage OK, disconnected (no consumption) 

• Red – source warning (overconsumption, current > 750 mA) 

• Red, fast flashing – voltage error (consumed current > 1050 mA, overload or short-circuit) 

• No light signaling – the cabin switch is unavailable, the device is supported by 2 cabin switches only