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Wireless LAN.book Page 5 Wednesday, November 28, 2001 11:30 AM

Before Using This Device

Thank you for purchasing a Fujitsu LifeBook with an

Integrated Wireless LAN. This manual describes the

basic operating procedures for the Wireless LAN

(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 (DS-SS),

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.

B e f o r e Y o u S t a r t

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.

Infrastructure 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.