User’s Manual 2-7
The Grand Tour
DC IN 15V jack The AC adaptor connects to this jack in order to 
power the computer and charge its internal 
batteries. Please note that you should only use 
the model of AC adaptor supplied with the 
computer at the time of purchase - using the 
wrong AC adaptor can cause damage to the 
computer.
LAN jack This jack lets you connect to a LAN. The adaptor 
has built-in support for Ethernet LAN (10 
megabits per second, 10BASE-T), Fast Ethernet 
LAN (100 megabits per second, 100BASE-TX). 
Some models are equipped with a Gigabit 
Ethernet LAN (1000 megabits per second, 
1000BASE-T). Refer to Chapter 4, Operating 
Basics, for details.
■ Do not connect any cable other than a LAN cable to the LAN jack. It 
could cause damage or malfunction.
■ Do not connect the LAN cable to a power supply. It could cause 
damage or malfunction.
LAN active indicator 
(orange)
This indicator may glow orange when the 
computer is connected to a LAN and the LAN is 
functioning properly.
Link indicator 
(green)
This indicator may glow green when the 
computer is connected to a LAN and the LAN is 
functioning properly.
Modem jack The modem jack lets you use a modular cable to 
connect the modem directly to a telephone line.
Some models are equipped with a modem jack.
■ Connection to any communication line other than an analog phone line 
could cause a PC system failure.
■ Connect the built-in modem only to ordinary analog phone lines.
■ Never connect the built-in modem to a digital line (ISDN).
■ Never connect the built-in modem to the digital connector on a 
public telephone or to a digital private branch exchange (PBX).
■ Never connect the built-in modem to a key telephone system for 
residences or offices. 
■ Avoid using your computer modem with the telephone cable connected 
during an electrical storm. There may be a remote risk of electric shock 
from lightning.