Fujitsu Lifebook E2010 User Manual Download

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L i f e B o o k E S e r i e s – A p p e n d i x

BEFORE USING THIS DEVICE

This manual describes the basic operating procedures
for the optional Wireless LAN device (referred to as the
“device” in this manual) and how to set up a wireless
LAN network. Before using this device, read this manual
carefully to ensure correct operation of the device. Keep
this manual in a safe place for reference while using the
device.

Characteristics of the Device

This device consists of a wireless LAN card that is
attached to the computer via a mini-PCI slot.

The main characteristics are as follows:

■

It uses the power saving communications system in
the 2.4 GHz band, and does not require any license for
radio communication.

■

It uses Direct Sequence Spread Spectrum (DSSS),
which is resistant to noise.

■

This device complies with Wi-Fi, and is able to com-
municate at the maximum transfer rate of 11 Mbps.

■

The maximum communication range is approxi-
mately 80 feet (25 meters) inside a building. The
range may be shorter depending upon the installation
factors, such as walls and columns.

■

Unauthorized access can be prevented with the use of
SSID and encryption key.

Wireless LAN Modes Using this Device

AdHoc Mode

The “AdHoc Mode” refers to the network connecting
two computers using wireless LAN cards. This connec-
tion is called an “AdHoc network.”

Using an AdHoc network, you can obtain a network
connection easily and at a low cost.

In the AdHoc mode, you can use the function supported
by Microsoft Network, such as File and Print Sharing to
exchange files and share a printer or other peripheral
devices.

To use the AdHoc Mode, you must set the same SSID
and the same encryption key for all the computers that
are connected. All connected computers can communi-
cate with each other within the communication range.

Infrastructure Mode

If a number of computers are connected simultaneously
in the AdHoc mode, the transfer rate may be reduced,
communications may become unstable, or the network
connection could fail. This is because all wireless LAN
cards are using the same radio frequency in the network.

To improve this situation, you can use a wireless LAN
access point, which is sold separately. The wireless LAN
network is in the “Infrastructure mode” when it uses an
access point, and such a connection is called the “Infra-
structure Network.”

By using an access point, you can set and use a different
communication channel for each network group. Each
channel is given a different radio frequency, and it
eliminates the collision of communications and provides
a more stable communications environment. Infrastruc-
ture mode is most suitable when you are configuring
multiple wireless LAN networks on the same floor.

To connect a wireless LAN network to a wired LAN, you
need an access point.

How to Handle This Device

The Integrated Wireless LAN device is already installed
in your LifeBook computer. Under normal circum-
stances, it should not be necessary for you to remove or
re-install it. The LAN has been configured to support the
operating system with which your system shipped.

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