4. Names and Functions of PartsExpress5800/R120g-2E User's Guide28Chapter 1 General Description4.3 Rear View(1) Power UnitA power supply for supplying the DC power to the server.(2) AC InletA socket for connecting the power cord.(3) AC POWER LEDAn LED for showing the power supply status.(See page 38)(4) Cap ScrewA screw for fixing the top cover.(5) Slot for PCI CardSlots for installing PCI cards."1", "2", "3", "4", and "5" indicate PCI slot number.(6) USB ConnectorsConnectors for connecting USB interface devices.(7) LINK/ACT LEDLEDs for showing the access status of LAN.(See page 37)(8) LAN ConnectorsLAN connectors which supports1000BASE-T/100BASE-TX/10BASE-T.(10)-1: LAN1 port connector(10)-2: LAN2 port connectorIf Shared BMC LAN feature is enabled in ROM Utility, LANconnector 1 can also be used as the management LAN port.Sharing port is not recommended from the point of performanceand security.(9) SPEED LEDLEDs for showing the transfer speed of LAN ports.(See page 37)(10) Management LAN ConnectorA LAN connector which supports1000BASE-T/100BASE-TX/10BASE-T. This portcannot be used as a data transmission port.This port is used for connecting to EXPRESSSCOPEEngine 3.(11) Serial Port A (COM) ConnectorA connector for connecting serial interface devices.This cannot connect to a network line directly.(12) Display ConnectorA connector for connecting a display.This connector cannot be used with the displayconnector on front panel at the same time.(13) UID Switch/LEDA switch for turning on/off UID LED.Pressing the switch once turns on UID LED andpressing again turns off the LED.Commands from the software also cause it to turn onor flash.(See page 35)(14) 2.5-inch Additional HDD Cage BayA bay for installing 2.5-inch Additional HDD cage(Rear). Not available in 16x 2.5-inch drive models.(5)-1 (5)-2 (5)-3 (5)-4 (5)-5(8)-2(8)-1(7)(10) (9) (6)(11) (12) (13)(1) (2) (3) (4)(14)(7)(9)