4. Names and Functions of PartsExpress5800/R110f-1E User’s Guide38Chapter 1 General Description4.3 Rear View(1) AC InletThis socket is used to connect the power cord.(2) Serial port A (COM A) connectorThis connector is used to connect devices that support aserial interface. Note that it is not possible to directlyconnect to a dedicated line.(3) LINK/ACT LED (green)The LED indicates the access status of LAN.(4) LAN connectorsLAN connectors that support1000BASE-T/100BASE-TX/10BASE-T.If Shared BMC LAN feature is enabled in ROM Utility, LANconnector 1 can also be used as the management LANconnector. However, sharing port is not recommended fromthe point of performance and security, because LAN port 1may receive both data.(5) SPEED LED (green/amber)The LED indicates the transfer speed of LAN ports.(6) Display connectorThe connector to connect a display.(7) DC Power LED (green)During BMC initialization, this LED lights amber. This LEDlights green when the power is ON.(8) USB connectorsThese connectors are used to connect devices that supportthe USB interface.(9) Management LAN connectorLAN connector that supports 100BASE-TX/10BASE-T.This port cannot be used as a data transmission port. Thisport is used for connecting to EXPRESS SCOPR ENGINE3. This port is disabled when Shared BMC LAN feature isused.(10) UID (Unit ID) switch/LED (blue)The switch to turn on and off the UID LEDs provided at thefront and rear of the server. Pressing the switch once turnson the UID LED and pressing once more turns off the LED.(11) PCI slotThe slot is used to install the low profile type PCI board.The sequential numbers indicate the corresponding slotnumbers.(2) (3) (4) (5) (3) (4) (5)(6) (8)(7) (9)(4) (5) (10)(11)-2(1) (11)-1(2) (3) (4) (5) (3) (4) (5)(6) (8)(7) (9)(4) (5) (10)(11)-2(1) (11)-1(1)