Lenovo 3000 Series - Manual (Page 6)

Lenovo Notebook Computer User Guide
Note: Be careful not to plug the telephone line into the
slightly larger network connector. The telephone line uses
higher voltage than the LAN cable; it might damage your
computer.
1.1.4.2 Modem jack
The Modem jack allows you to connect your notebook to a
telephone line with a standard RJ‐11 connector.
Note: Never connect the Modem jack to a digital line. The
high current of a digital line might damage the Modem.
1.1.5 USB ports x1
Use Universal Serial Bus (USB) connectors to connect USB
interface‐compatible devices, such as a printer or digital camera.
The USB ports comply with USB2.0 standards, which enable data
transfer speeds 40 times faster than the USB 1.1 standards. (The
ports also support USB 1.1.)
Hint: The USB device supports PnP (Plug and Play)
technology. That means you can install and remove the
USB device when your computer is on.
Caution: Do not install or remove the USB device while the
compter is starting or shutting down.
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