Cradlepoint AER1650 Quick Start Manual page 5

LEDS
Blue LED bars indicate the active modem's signal strength.
SIGNAL STRENGTH
4 Solid Bars = Strongest signal.
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1 Blinking Bar = Weakest signal. (A blinking bar indicates half of a bar.)
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Indicates the status of embedded modem.
EMBEDDED MODEM
Indicates the status of internal modems.
INTERNAL MODEM
Indicates the status of external USB modems.
EXTERNAL USB MODEM
All modems have the following LED indicators:
Green = Modem has established an active connection.
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Blinking Green = Modem is connecting.
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Amber = Modem is not active.
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Blinking Amber = Data connection error. No modem connection possible.
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Blinking Red = Modem is in the process of resetting.
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ADDITIONAL LED INDICATIONS
Several different LEDs flash when the factory reset button is detected.
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Two of the modem LEDs blink red in unison for 10 seconds when there is an error
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during firmware upgrade.
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