Lenovo ThinkPad T540p - Manual (Page 22)

• The audio connector does not support a conventional microphone. For more information, see “Using
audio features” on page 38.
Bottom view
Figure 4. Bottom view
1 Battery pack 4 Keyboard drainage holes
2 SIM card slot 5 Speakers
3 Docking station connector
1 Battery pack
Use the computer with battery power whenever ac power is unavailable.
You can use the Power Manager program to adjust your power settings as needed. For detailed information,
see the help information system of the Power Manager program.
2 SIM card slot
If your computer supports the wireless wide area network (WAN) feature, a Subscriber Identification Module
(SIM) card might be required to establish wireless WAN connections. Depending on the country or region of
delivery, the SIM card might be already installed in the SIM card slot. For more information, see “Installing
or replacing the SIM card” on page 71.
3 Docking station connector
You can use the connector to connect the computer to a supported docking station to extend the computer
capabilities when you are at the office or at home. For more information about the supported docking
stations, see “ThinkPad docking stations” on page 95.
4 Keyboard drainage holes
The keyboard drainage holes can help drain out liquid from your computer if you accidentally spill water or
drink over the keyboard.
5 Speakers
Your computer is equipped with a pair of stereo speakers.
6 User Guide