44Switch model ModeLED Port status LED DescriptionS5120-9P-PWR-SIS5120-9P-HPWR-SIS5120-28P-PWR-SIS5120-28P-HPWR-SISteadygreen(ratemode)GreenOn The port is operating at 1000 Mbps.Fast flashing Data is transmitted or received at 1000 Mbps.Off The port is not up or is not operating at 1000Mbps.YellowOn The port is operating at 10/100 Mbps.Fast flashing Data is transmitted or received at 10/100Mbps.Off The port is not up or is not operating at 10/100Mbps.Flashinggreen(PoEmode)GreenOn The port is supplying power through PoEcorrectly.Flashing at 3HzPower consumption of the device connectedto the port has exceeded the maximum powerof the port, or the available power of theswitch is not enough for the port to supplyPoE power.Off The port is not supplying power through PoE.YellowSteady onA non-PD device is connected to the port. Theport cannot supply power through PoE to thedevice.Off The port is not supplying power through PoEor is supplying power through PoE correctly.1000Base-X SFP interface status LEDTable 17 1000Base-X SFP interface status LED descriptionSFP interface status LED MeaningSteady green The port is transmitting data at 1000 MbpsFlashing green The port is receiving data at 1000 Mbps.Off No link is present on the port.NOTE:The port LED mode switching button on the S5120-9P-PWR-SI, S5120-9P-HPWR-SI,S5120-28P-PWR-SI, and S5120-28P-HPWR-SI switches does not take effect on the 1000Base-XSFP interface LEDs.