CREWAVE Wireless LAN PC Card 4
INFORMATION
Congratulations on your CREWAVE Wireless LAN Access Point purchase!
If you want to install a networking system that is not only fast and powerful, but also
easy to set up and simple to maintain, it is natural that you should choose a
CREWAVE 11Mbps Wireless LAN Access Point.
The CREWAVE 11Mbps Wireless LAN Access Point(this “AP”) is the wireless
Access Point for the 802.11b compliant. This AP extends the range of your cabled
Ethernet network(a wired Local Area Network), providing easy network access to
mobile users and difficult to wire locations. So the AP can serve mobile wireless
stations, roaming between various locations within a network area.
Moreover, this AP provides excellent levels of security, robustness and roaming
features required for your business.
What is a Wireless LAN?
A Wireless LAN provides the same functionality of a Wired LAN, but it eliminates the
need to install networking cables and other networking equipment. Not only is a
Wireless LAN easier to deploy, but it also allows for “roaming.” For example, an
employee using a portable computer with a Wireless LAN PC Card, can roam from a
conference room to an office without being disconnected from the network.
What is IEEE 802.11?
The IEEE 802.11 specification is a Wireless LAN standard developed by the
IEEE(Institute of Electrical and Electronic Engineering) committee in order to specify
an over an air interface between a wireless client and a base station or Access
Point(AP), as well as among wireless clients. Like other IEEE 802 families, IEEE
802.11 specification addresses both Physical(PHY) layer and Media Access
Control(MAC) layer.
-IEEE 802.11 Physical(PHY) Layer
At the PHY Layer, IEEE 802.11 defines three physical characteristics for WLAN :
