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Rear view
Figure 5. ThinkPad T520, T520i, and W520 rear view
1 Always On USB connector (rear)
2 Modem connector
3 Power jack
4 Fan louvers (rear)
1 Always On USB connector (rear)
The Universal Serial Bus connectors are used for connecting devices compatible with a USB interface,
such as a printer or a digital camera.
By default, even when your computer is in sleep (standby) mode, the Always On USB connector still enables
you to charge some devices, such as iPod
®
and iPhone and BlackBerry
®
smartphones, by attaching the
devices to the connector.
However, with the ac power adapter attached, if you want to charge these devices when your computer
is in hibernation mode or powered off, you will need to open the Power Manager program and congure
corresponding settings to enable the Always On USB connector function. For details about how to enable
the Always On USB connector function, refer to the online help of the Power Manager program.
Notes:
• Your computer may look slightly different from the illustrations.
• Your computer is compatible with USB 1.1 and 2.0.
2 Modem connector
Connect your computer to a telephone line with the modem connector.
For details, refer to the instructions in “Dialup connections” on page 75
.
3 Power jack
The ac power adapter cable connects to the computer power jack to provide power to the computer and
charge the battery.
12 User Guide