Fujitsu Stylistic CE CT2000 Series, Руководство пользователя

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W i r e l e s s L A N U s e r ’ s G u i d e
Before Using the 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
The main characteristics are as follows:
■ It operates in the 2.4 GHz Industrial, Scientific, and
Medical (ISM) RF band.
■
It does not require the procurement of an FCC license
to operate.
■ It uses two different RF modulation schemes, depend-
ing on the operating mode: 802.11b or 802.11g. Direct
Sequence Spread Spectrum (DSSS) is used in 802.11b
mode; Orthogonal Frequency Division Multiplexing
(OFDM) is used in 802.11g mode.
■ This device is designed to the IEEE 802.11b/g standard,
which states that the maximum rate of data transfer is
54 Mbps in 802.11g mode and 11 Mbps in 802.11b
mode; this computer’s actual data transfer speed can be
much lower depending on a variety of factors, includ-
ing the Windows CE device capability.
■
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 viewing of data can be prevented with
the use of an encryption key. The wireless LAN module
used in this computer supports WEP and TKIP
encryption.
Wireless LAN Modes Using this Device
Ad Hoc Mode (See Figure 4-1)
“Ad Hoc Mode” refers to a type of wireless network that
involves connecting multiple computers without the use
of an Access Point. Network connectivity between
computers can be established using only wireless LAN
cards in a peer-to-peer fashion.
Ad Hoc networks are an easy and inexpensive method for
establishing network connectivity between multiple
computers.
In the Ad Hoc 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 Ad Hoc 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.
Access Point (Infrastructure) Mode (See Figure 4-2)
“Access Point” or “Infrastructure” Mode refers to a wire-
less network in which devices communicate with each
other by first going through an Access Point (AP). In
infrastructure mode, wireless devices can communicate
with each other or with a wired network. Most corporate
wireless LANs operate in infrastructure mode because
they require access to the wired LAN in order to use
services such as file servers or printers.
How to Handle This Device
The integrated wireless LAN device is already installed in
your mobile computer. Under normal circumstances, it
should not be necessary for you to remove or re-install it.
The wireless LAN has been configured to support the
operating system with which your system shipped.
PWR PWR
CLR CLR
BKS BKS
F1 F1 F2 F2
F3 F3 F4 F4
1
2
3
4
5
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0
CLR
BS
F1
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PWR
ENT
Figure 4-1. Ad Hoc Mode Network