D-Link DWL-A520 Specifications download pdf (Page 7)

Wireless Basics (continued)

Installation Flexibility - Wireless technology allows the network to go where

wires cannot go.

Reduced Cost-of-Ownership - While the initial investment required for

wireless LAN hardware might be higher than the cost of wired LAN hardware,

overall installation expenses and life-cycle costs will be significantly lower.

Long-term cost benefits are greatest in dynamic environments requiring

frequent moves, adds, and changes.

Scalability - Wireless LAN systems can be configured in a variety of

topologies to meet the needs of 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 that allow roaming over a broad area.

D-Link AirPro Wireless LAN products include:

 802.11a 5GHz Wireless Cardbus Adapters used with laptop

computers (DWL-A650)

 802.11a 5GHz Wireless PCI cards used with desktop computers

(DWL-A520)

 802.11a 5GHz Wireless Access Points (DWL-5000AP)

Standards - Based Technology

The IEEE 802.11a standard designates that devices operate at an optimal

data rate of 54 Megabits per second. This means you will be able to transfer

large files quickly or even watch a movie in MPEG format over your network

without noticeable delays. This technology works by transmitting high-speed

digital data over a radio wave utilizing OFDM (Orthogonal Frequency

Division Multiplexing) technology. OFDM works by splitting the radio signal

into multiple smaller sub-signals that are then transmitted simultaneously at

different frequencies to the receiver. OFDM reduces the amount of

crosstalk (interference) in signal transmissions. D-Link AirPro products will

automatically sense the best possible connection speed to ensure the

greatest speed and range possible with the technology.

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D-Link DWL-A520 Specifications Page 7