Lenovo THINKCENTRE 9120 User Manual download pdf (Page 15)

Connector Description

Standard mouse connector Used to attach a mouse, trackball, or other pointing device that

uses a standard mouse connector.

Standard keyboard

connector

Used to attach a keyboard that uses a standard keyboard

connector.

Serial connector Used to attach an external modem, serial printer, or other

devices that use a 9-pin serial connector.

Parallel connector Used to attach a parallel printer, parallel scanner, or other

devices that use a 25-pin parallel connector.

USB connectors Used to attach a device that requires a Universal Serial Bus

(USB) connection, such as a USB keyboard, USB mouse, USB

scanner or USB printer. If you have more than six USB devices,

you can purchase a USB hub, which you can use to connect

additional USB devices.

Ethernet connector Used to attach an Ethernet cable for a local area network

(LAN).

Note: To operate the computer within FCC Class B limits, use

a Category 5 Ethernet cable.

Audio-line-out connector Used to send audio signals from the computer to external

devices, such as powered stereo speakers (speakers with

built-in amplifiers), headphones, multimedia keyboards, or the

audio line in connector on a stereo system or other external

recording device.

Audio-line-in connector 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.

Chapter 2. Overview 7

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Lenovo THINKCENTRE 9120 User Manual Page 15