181.5.2. LED Behavior while OperatingThis Switching Hub has a set of LEDs for each port. These LEDs indicate the opera-tion status of each port.● System LEDLED Behavior DescriptionPower LED(POWER)Green Light Power is OnOff Power is OffStatus/ECO mode LED(STATUS/ECO)Green Light Operating in the Status mode.Green Blink Operating in the ECO mode.All port LEDs (Left) are turned off.Orange Light Booting.Orange Blink Malfunction. (Contact the seller.)Off Power is OffPoE limit LED(PoE LIM.)Off Supplying power in the range from 0 to 170 W.Green Light Supplying power in the range from 170 to 185W.Orange Blink A single port's power supply is exceeding the upperlimit, or the total power supply of the Switching Hub isexceeding 185WFan sensor LED(FAN)Green Light The fan is operating normally.Orange Blink Fan error.Temperature sensor LED(TEMP)Green Light Within the threshold setting of the internal temperaturesensor.Orange Blink Exceeding the threshold setting of the internal tempera-ture sensor.(For details, refer to Section 4.5.3.c.)Loop History mode LED(LOOP HISTORY)Green Blink Loop is occurring, or occurred within the last 3 days.Off No loop detection history.