Rear panel 3Rear panelThe desktop case rear panel includes the following Input/Output (I/O) ports,connectors, and switches:Kensington lock slot permits the use of a cable lock to secure the system.Keyboard port connects a Personal System/2 ® (PS/2) compatible keyboard.Microphone-in, Line-out, and Line-in audio jacks connect audio devicessuch as speakers, tape players, and microphones.Mouse port connects a PS/2-compatible mouse.Parallel (printer) port connects a printer or other parallel device.Power connector connects the computer power cord. The other end of thepower cord plugs into an AC outlet or power strip.RJ-45 LAN connector lets you connect to a network, and the Indicator LEDsshow LAN activity (yellow LED) and 100 Mb/sec speed (green LED.)Serial ports connect to serial devices.Thumbscrew must be loosened to remove the cover from the system.USB ports connect external Plug-and-Play devices.Voltage selector sets the voltage for your area, either 115 V or 230 V.Video port connects the monitor’s interface cable.Serial port 1Keyboard portLine-inMicrophone-inPower connectorRJ-45 LAN connectorand indicator LEDsUSB portsVoltage selectorParallel (printer) portVideo portKensington lock slotThumbscrewMouseportLine-outSerial port 2
