Green flashing (POE mode): If the interface indicator light flashes green in POE mode, it may be due to the power of the receiving party exceeding the interface's power supply capacity or the set threshold, or the receiving party's device being a non IEEE standard PD. Green flashing (POE mode): If the interface indicator light flashes green in POE mode, it may be due to the power of the receiving party exceeding the interface's power supply capacity or the set threshold, or the receiving party's device being a non IEEE standard PD. The lights on POE switches mainly include power indicator lights, system operation status lights, POE mode status lights, and business interface indicator lights. Their meanings are as follows: Power indicator light (PWR): Green constantly on: indicates that the power supply of the switch is normal. The PoE LED indicates the status of the PoE mode: either PoE, PoE+ or UPOE. None of the 10/100/1000 ports have been denied power or are in a fault condition. PoE mode is enabled and Port LEDs function as described in Port LEDs and Modes, on page 3. Red signals critical errors or hardware failures. While this. The following table describes the various LED statuses observed during the onboarding of Instant On APs or switches to a site: Indicates that the device has no power. Test the cable: Swap with a known working Ethernet cable. Try another device: Connect a laptop or server to verify the link.
