Lenovo ThinkCentre A30 Quick Reference Manual page 32

a. Connect the cable that runs between the speakers, if necessary. On
some speakers, this cable is permanently attached.
b. Connect the speakers to the computer.
9. Connect any additional devices that you have. Your computer might not
have all connectors that are shown.
1 USB
2 Serial
3 S-video
4 Parallel
5 Ethernet
6 MIDI/joystick
7 IEEE 1394
6
Quick Reference
Use these connectors to attach a device that requires a Universal
Serial Bus (USB) connection, such as a mouse, scanner, printer, or
personal digital assistant (PDA).
Use this connector to attach an external modem, serial printer, or
other device that uses a 9-pin serial connector.
Use this connector to attach a television set that has an S-Video
connector. This connector is present on some high-performance
video adapters.
Use this connector to attach a parallel printer or any other device
that requires a 25-pin parallel connection.
Use this connector to attach the computer to an Ethernet-type local
area network or to a cable modem.
Important
To operate the computer within FCC limits when it is
connected to an Ethernet network, use a Category 5 Ethernet
cable.
Use this connector to attach a joystick, gamepad, or a musical
instrument digital interface (MIDI) device such as a MIDI
keyboard.
This connector is sometimes called Firewire because it transmits
data rapidly. There are two types of IEEE 1394 connectors: the
4-pin and the 6-pin. IEEE 1394 offers connection to several types of
consumer electronics, including digital audio devices and scanners.
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