What is Red-Yellow-Green flashing light on FTTH fiber ONT meaning?

vishalrao

Global Moral Police
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Nov 10, 2007
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Pune, India
My LCO was fixing my fiber cut today and while he was working I was watching my ONT modem and noticed that for some time the red flashing light became alternating red-yellow-green flashing light for few seconds.

Anyone know what this means status?