Status Indicators; Dock Plus Series 3, Or Thinkpad Mini Dock - Lenovo ThinkPad T420si User Manual

3 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.
Notes:
• Your computer is compatible with USB 1.1, 2.0, and 3.0.
• If your computer is a USB 3.0 model, any function specific to USB 3.0 will not work until your Windows
operating system has been started. However, USB 2.0 or 1.0 devices will work.
4 Always On USB connector
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 if your computer is in sleep (standby) mode, the Always On USB connector still enables
you to charge some devices, such as iPod
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 configure
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 on-line help of the Power Manager program.
Note: Your computer is compatible with USB 1.1 and 2.0.
5 DisplayPort connector
Your computer supports the DisplayPort, a next-generation digital display interface that connects a
compatible projector, external monitor, or HDTV to your computer.
For more information, refer to "Using the DisplayPort connector" on page 56.
6 Monitor connector
You can attach an external monitor or a projector to your computer to display computer information.
Note: If you attach your computer to the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series
3, ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W); and use a monitor
connector, use the monitor connector on the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3,
ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W), not the one on the computer.
For details, refer to the instructions in "Attaching an external monitor" on page 52.
7 Fan louvers (rear)
The internal fan and louvers enable air to circulate in the computer and cool the central processor.
Note: To avoid impeding airflow, do not place any obstacle in front of the fan.

Status indicators

The status indicators show the current status of your computer.
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User Guide
®
, iPhone, and BlackBerry
®
smartphones, by attaching the