IBM 7985 Problem Determination And Service Manual

Rear viewThe following illustration shows the connectors and LEDs on the rear of the server.Power cord connectorSystems-managementEthernet connectorOptional ExternalSAS connectorSerialconnectorVideoconnector USB 3 connectorUSB 1/USB 2 connectorsUSB 4 connectorEthernet 2 connectorEthernet 1 connectorPower supply 1Power-on LEDSystem-locator LEDSystem-error LEDEthernet activity LEDsEthernet link LEDsAC power LEDDC power LEDPower-cord connector: Connect the power cord to this connector.AC power LED: Each hot-swap power supply has an ac power LED and a dcpower LED. During typical operation, both the ac and dc power LEDs are lit. Forany other combination of LEDs, see “Power-supply LEDs” on page 53.DC power LED: Each hot-swap power supply has a dc power LED and an acpower LED. During typical operation, both the ac and dc power LEDs are lit. Forany other combination of LEDs, see “Power-supply LEDs” on page 53.Optional external SAS connector: Connect a serial-attached SCSI (SAS) deviceto this connector.System-management Ethernet connector: Use this connector to connect theserver to a network for systems-management information control. This connector isactive only if you have installed a Remote Supervisor Adapter II SlimLine, and isused only by the Remote Supervisor Adapter II SlimLine.Ethernet link LEDs: When these LEDs are lit, they indicate that there is an activelink connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for theEthernet port.Ethernet activity LEDs: When these LEDs are lit, they indicate that the server istransmitting to or receiving signals from the Ethernet LAN that is connected to theEthernet port.Ethernet connectors: Use either of these connectors to connect the server to anetwork.USB connectors: Connect a USB device, such as a USB mouse, keyboard, orother USB device, to any of these connectors.Video connector: Connect a monitor to this connector.Power-on LED: When this LED is lit and not flashing, it indicates that the server isturned on. When this LED is flashing, it indicates that the server is turned off andChapter 2. Introduction 9