About The Integrated Wireless Lan (For Selected Model); Before Using This Device; Wireless Lan Modes; Infrastructure Mode - Fujitsu Laptop User Manual

SECTION 1
9. About the Integrated Wireless Lan

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.
• The Wireless LAN Mini-PCI module complies with Wi-Fi, and is able to communicate at the
maximum transfer rate of 11 Mbps.
• The maximum communication range is approximately 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
connection 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 communicate.

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 "Infrastructure 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
circumstances, 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.
(For selected model)
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