Possible cause 1: The ONU glows for a long time and is kicked offline by the OLT as a rogue ONU. Diagnosis method: add a register command to confirm whether the optical module emits a long light, confirm whether the board is calibrated, and the hardware is abnormal, and replace. The signal shows a full signal, but the network speed is still slow? What does it mean when the ONU indicator keeps flashing? Plug in and light up, showing whether ONU is connected to power, ONU without power connection is useless. If the power supply is normally connected, the POWER indicator. The optical port of the ONU is a core, vulnerable component that enables optical-to-electrical signal conversion. The circuitry is sensitive to voltage and static electricity. A rogue ONU exists on the network and affects. The PSU is connected and works properly. What are the common faults of ONU (Optical Network Unit) and how to quickly resolve them? ONU (Optical Network Unit) is one of the terminal devices in fiber optic networks, commonly used in Fiber-to-the-x (FTTx) network architectures.
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