Lenovo ThinkCentre 7522 User Manual page 17

Connector
Audio line-in connector
Audio line-out connector
Ethernet connector
Microphone connector
Parallel port
Standard keyboard
connector
Standard mouse connector
Serial port
USB connector
VGA monitor 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), headphones, multimedia keyboards, or the
audio line-in connector on a stereo system or other external
recording devices.
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.
Used to attach a microphone to your computer when you want
to record sound or if you use speech-recognition software.
Used to attach a parallel printer, a parallel scanner, or other
devices that use a 25-pin parallel port.
Used to attach a keyboard that uses a standard keyboard
connector.
Used to attach a mouse, a trackball, or other pointing devices
that use a standard mouse connector.
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 requires a Universal Serial Bus
(USB) connector, such as a USB keyboard, a USB mouse, a USB
scanner, or a 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.
Used to attach a VGA monitor or other devices that use a VGA
monitor connector.
Chapter 1. Product overview
9