151.4. LED Behavior1.4.1. LED Behavior at Start-upUpon turning this Switching Hub on, all LEDs tentatively light up. Then, theself-diagnosis of hardware is executed. Upon finishing the diagnosis, powerLED and status/ECO mode LED light in solid green. Then, the Switching Hubstarts working.1.4.2. LED Behavior while OperatingThis Switching Hub has a set of LEDs for each port. These LEDs indicate theoperation status of each port. System LEDLED Behavior DescriptionPOWER LED(Power)Green Light Power is ON.Off Power is OFF.ANY COL. LED(Collision)Orange Light During half-duplex operation, packet collisionis occurring in either port.Off No packet collision.STATUS/ECO LED(Status/Eco mode)Green Light Operating in status mode.Green Blink Operating in ECO mode.(All LEDs turn off, except POWER andSTATUS/ECO LEDs during ECO mode.)Off Power is OFF.GIGA LED(GIGA mode)Green Light Operating in GIGA mode.100M LED(Speed mode)Green Light Operating in Speed mode.FULL LED(DUPLEX mode)Green Light Operating in Duplex mode.LOOP HISTORY LED(Loop History mode)Green Light Operating in Loop history mode.Green Blink Loop is occurring, or occurred within the last3 days.