52S6520X-26MC-UPWR-SIFigure 64 Front panel(1) 5G/2.5G/1000/100BASE-T autosensingEthernet port(2) 5G/2.5G/1000/100BASE-T autosensing Ethernetport LED(3) Power module 1 status LED (PWR1) (4) System status LED (SYS)(5) Management Ethernet port LED (LINK/ACT) (6) Mode LED (MODE)(7) Expansion card status LED (SLOT) (8) Power module 2 status LED (PWR2)(9) USB port (10) Mode button(11) Micro USB console port (12) Console port (CONSOLE)(13) Management Ethernet portFigure 65 Rear panel(1) Grounding screw (2) Expansion card(3) Power module 1 (PWR1) (4) Power module 2 (PWR2)An S6520X-26MC-UPWR-SI switch comes with power module slot 1 empty and power module slot 2installed with a filler panel. You can install one or two power modules for the switch as required.In Figure 65, two PSR720-56A AC power modules are installed in the power module slots. For moreinformation about installing and removing a power module, see "Installing and removing a powermodule."An S6520X-26MC-UPWR-SI switch comes with a filler panel in the expansion slot. You can select anexpansion card for the switch as required. In Figure 65, an LSWM2SP2PM interface card is installedin the expansion slot. For more information about installing and removing an expansion card, see"Installing and removing an expansion card."