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With IEEE 802.11b standard-based, WL-U351 provides 11Mbps wireless networking for USB-enabled
desktops or notebooks. It can operate in either Ad-Hoc mode (Point to Point/Point to Multipoint without
Access Point) or Infrastructure mode (Point to Point/Point to Multipoint with Access Point).
WL-U351 provides with an internal patch antenna, and thus making its size more compact. Regarding
the platform compatibility, WL-U351 supports most popular operating systems including Windows 98,
Me, 2000 and XP. Plus 64-bit and 128-bit WEP (Wired Equivalent Privacy) Encryption feature, WL-U351
offers a reliable and private wireless network connection. Its data rate support 11, 5.5, 2 and 1Mbps.
With its auto-fallback function, the data rate can be move to lower speed if signal quality is not good
enough.
The WL-U351 provides full mobility and seamless roaming feature for mobile users to keep network
connection across access points. Its range of coverage is up to 300 feet indoor and 800 feet outdoor.
1.1 Features
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2.4GHz ISM band, unlicensed operation
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Wireless connection without the hassles and cost of cabling
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Wireless LAN IEEE 802.11b compliant
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Up to 11Mbps data rate with CSMA/CA
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Utilize Direct Sequence Spread Spectrum (DSSS) Technology to provide robust,
interference-resistant solution in a multi-user environment
Support 64/128-bit WEP key
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Working range up to 300 feet indoor and 800 feet outdoor
Support Ad-Hoc / Infrastructure mode
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Roaming capability to provide mobile computing for mobile worker to access network
resources anywhere in the field
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Seamless integration with IEEE 802.3 LAN through IEEE 802.11b compliant Access Point
Supports most popular operating systems including Windows 98/Me/2000/XP
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1.2 Application
Infrastructure
The WL-U351 provides access to a wired LAN for wireless workstations. An integrated wireless
and wired LAN is called an Infrastructure configuration. A group of WL-U351 PC users and an
Access Point compose a Basic Service Set (BSS). Each WL-U351 PC in a BSS can talk to any
computer in the wired LAN infrastructure via the Access Point.
An Infrastructure configuration extends the accessibility of a WL-U351 equipped PC to a wired
LAN, and doubles the effective wireless transmission range for 2 WL-U351 PCs. Since the Access
Point is able to forward data within its BSS, the effective transmission range in an infrastructure
LAN is doubled.
The use of a unique ID in a BSS is essential. All WL-U351 equipped PCs configured without
roaming options in an independent BSS must be configured with a BSS ID corresponding to the
WL-U351 used in the BSS. Check your WL-U351 for its BSS ID or use the Site Survey function on
Configuration Utility program to determine the BSS ID.
Chapter 1 Introduction
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