User`s manual

Blitzz Super G Wireless – 108 Mbps 802.11g Notebook Adapter

1.2 What is Wireless LAN?

Wireless Local Area Network (WLAN) systems offer a great number of

advantages over traditional wired systems. WLAN is flexible and easy to setup and

manage. They are also more economical than wired LAN systems.

Using radio frequency (RF) technology, WLAN transmit and receive data through

the air. WLAN combine data connectivity with user mobility. For example, users can

roam from a conference room to their office without being disconnected from the LAN.

Using WLAN, users can conveniently access-shared information, and network

administrators can configure and augment networks without installing or moving

network cables.

WLAN technology provides users with many convenient and cost saving features:

• Mobility: WLAN provide LAN users with access to real-time information

anywhere in their organization, providing service opportunities that are

impossible with wired networks.

• Ease of Installation: Installing is easy for novice and expert users alike,

eliminating the need to install network cables in walls and ceilings.

• Scalability: WLAN can be configured in a variety of topologies to adapt to

specific applications and installations. Configurations are easily changed and

range from peer-to-peer networks suitable for a small number of users to full

infrastructure networks of thousands of users roaming over a broad area.

1.3 Wireless LAN Modes

Wireless LANs can be configured in one of two ways:

Ad-hoc Networking

Also known as a peer-to-peer network, an ad-hoc network is one that allows all

workstations and computers in the network to act as servers to all other users on

the network. Users on the network can share files, print to a shared printer, and

access the Internet with a shared modem. However, with ad-hoc networking,

users can only communicate with other wireless LAN computers that are in the

wireless LAN workgroup, and are within range.

Infrastructure Networking

Infrastructure networking differs from ad-hoc networking in that it includes an

access point. Unlike the ad-hoc structure where users on the LAN contend the

shared bandwidth, on an infrastructure network the access point can manage the

bandwidth to maximize bandwidth utilization. Additionally, the access point

enables users on a wireless LAN to access an existing wired network, allowing

wireless users to take advantage of the wired networks resources, such as

Internet, email, file transfer, and printer sharing. Infrastructure networking has

the following advantages over ad-hoc networking:

• Extended range: each wireless LAN computer within the range of the

access point can communicate with other wireless LAN computers within

range of the access point.