Messages displayed on the Gateway's LED indicators

How to interpret the LED flashes displayed on the Gateway.

Each Gateway features two LED indicators. Depending on the operating mode, the LEDs flash in sequence with the following meanings:

Green - External power status

On – not flashing = Power is connected
On – flashing every second = Running from battery
Off (Flight mode/powered off)

Red - Cellular network connectivity status

Slow short flash = searching for cellular network
Slow long flash = connected to a cellular network, idle
Fast flash = connected to a cellular network, sending data
Off (Flight mode/powered off)