4. Names and Functions of PartsExpress5800/T120d User’s Guide42Chapter 1 General Description4.7.7 LEDs for LAN connectorsThe three LAN connectors provided at the rear of the server have two LEDs each.• LINK/ACT LED( 1, 2, M)This LED indicates the state of the LAN port. LINK LED lights green when the server and hub arepowered and properly connected. ACT LED flashes green when the port is transmitting or receiving data.If the LED does not turn on in LINK state, check the cable or connection.• SPEED LED( 1, 2, M)This LED indicates which network interface is used.− Two onboard LANs ( 1, 2) support 1000BASE-T, 100BASE-TX, and 10BASE-T.The LED indicates which network interface is being used.• Amber: Operating with 1000BASE-T• Green: Operating with 100BASE-TX• OFF: Operating with 10BASE-T− Management LAN ( M) supports 100BASE-TX and 10BASE-T.The LED indicates which network interface is being used.• Green: Operating with 100BASE-TX• OFF: Operating with 10BASE-TLAN1ConnectorLAN2ConnectorManagementLAN ConnectorLINK/ACTLEDSPEEDLEDLINK/ACTLEDSPEEDLEDLINK/ACTLEDSPEEDLED