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Teletronics EZ Bridge 802.11G User Manual

Page 61

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WLAN - WLANs (Wireless LANs) are local area networks that use wireless
communications for transmitting data. Transmissions are usually in the 2.4
GHz band. WLAN devices do not need to be lined up for communications
like infrared devices. WLAN devices use access points, which are
connected to the wired LAN and provide connectivity to the LAN. The radio
frequency of WLAN devices is strong enough to be transmitted through
non-metal walls and objects, and can cover an area up to a thousand feet.
Laptops and notebooks use wireless LAN PCMCIA cards while PCs use
plug-in cards to access the WLAN.