14Table 14 Management Ethernet port LED descriptionLED mark Status DescriptionLINKOff The management Ethernet port is not connected.Steady green The management Ethernet port is operating at 10/100/1000 Mbps.ACTOff The management Ethernet port is not sending or receiving data.Flashing yellow The management Ethernet port is sending or receiving data.OAP card status LEDThe SLOT3 LED on the front panel of the S5820X-28C switch shows the status of the card in the OAP cardslot.Table 15 OAP card status LED descriptionLED mark Status DescriptionSLOT3Green An OAP card is in the slot and operating correctly.Flashing yellow (1 Hz) The switch does not support the OAP card model, or the OAPcard has failed.Off The OAP card slot is empty.Hot swappable power modulesAll S5820X switches use hot swappable power modules. You can install one power module, or forredundancy, two power modules in Table 16 for them. For how to install or remove a power module, see"Installing/Removing a power module."Table 16 Power module specificationsPowermodule Specifications Switchchassis ReferencePSR300-12APSR300-12A1PSR300-12A2• Rated input voltage range:100 VAC to 240 VAC @ 50 Hz or 60 Hz• Max input voltage range:90 VAC to 264 VAC @ 47 Hz or 63 Hz• Max output power:300 WS5820X-28SS5820X-28CH3C PSR300-12A &PSR300-12D Series PowerModules User ManualPSR300-12D1PSR300-12D2• Rated input voltage range:–48 VDC to –60 VDC• Max input voltage range:–40.5 VDC to –72 VDC• Max output power:300 WS5820X-28SS5820X-28CH3C PSR300-12A &PSR300-12D Series PowerModules User Manual