Lenovo ThinkCentre A51 Quick Reference Manual page 30

1 USB
2 Serial
3 S-video
4 Parallel
5 Ethernet
6 MIDI/joystick
7 IEEE 1394
10. Connect the power cords to properly grounded electrical outlets.
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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