Lenovo ThinkStation C20x (English) User Guide - Page 14

Connector Audio line-in connector Audio line-out connector (front speaker connector) Audio line-out connector (rear speaker connector) Audio line-out connector (side speaker connector) Audio line-out connector (subwoofer/center speaker connector) eSATA connector Ethernet connector IEEE 1394 connector (available on some models) Microphone connector Optical SPDIF in connector Optical SPDIF out connector Serial port (available on some models) USB connector Description Used to receive audio signals from an external audio device, such as a stereo system. When you attach an external audio device, a cable is connected between the audio line-out connector of the device and the audio line-in connector of the computer. Used to send audio signals from the computer to external devices, such as powered stereo speakers (speakers with built-in amplifiers), multimedia keyboards, or the audio line-in connector on a stereo system or other external recording devices. When used with 5.1 or 7.1 surround-sound speakers, this connector should be attached to the front left and right speakers. When used with 5.1 or 7.1 surround-sound speakers, this connector should be attached to the rear left and right speakers. When used with 7.1 surround-sound speakers, this connector should be attached to the side left and right speakers. When used with 5.1 or 7.1 surround-sound speakers, this connector should be attached to the center speaker or subwoofer. Use this connector to attach an external hard disk drive. Used to attach an Ethernet cable for a local area network (LAN). Notes: 1. To operate the computer within FCC Class B limits, use a Category 5 Ethernet cable. 2. If your computer has two Ethernet connectors, it is recommended that you connect your primary Ethernet cable to the Ethernet connector marked as number "1" for optimal performance. Used to send and receive IEEE 1394 signals between the computer and a compliant device, such as a video camera or external storage drive. This connector is sometimes called FireWire because it transmits data rapidly. Used to attach a microphone to your computer when you want to record sound or if you use speech-recognition software. Used to receive 5.1 digital audio signals from an external device (such as a receiver or a multimedia device) through a TOSLINK (ToshibaLink) optical cable. Used to send 5.1 digital audio signals from a computer to an external device (such as an amplifier or a receiver) through a TOSLINK optical cable. Used to attach an external modem, a serial printer, or other devices that use a 9-pin serial port. Used to attach a device that uses a USB connector, such as a USB keyboard, a USB mouse, a USB scanner, or a USB printer. If the USB connectors on your computer are not enough for you to connect all your USB devices, you can purchase a USB hub, which you can use to connect additional USB devices. Locating components Figure 3 "Component locations" on page 9 shows the locations of the various components in your computer. To remove the computer cover and access the inside of the computer, see "Removing the computer cover" on page 13. 8 ThinkStation User Guide