D-Link DIR-457U User Manual download pdf (Page 37)

33D-Link DIR-457/DIR-457U User Manual

Appendix A - Wireless Basics

What is Wireless?

Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires.

Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere

in your home or ofce network.

Why D-Link Wireless?

D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking

products. D-Link delivers the performance you need at a price you can afford. D-Link has all the products

you need to build your network.

How does wireless work?

Wireless works similar to how cordless phone work, through radio signals to transmit data from one point

A to point B. But wireless technology has restrictions as to how you can access the network. You must be

within the wireless network range area to be able to connect your computer. There are two different types of

wireless networks Wireless Local Area Network (WLAN), and Wireless Personal Area Network (WPAN).

Wireless Local Area Network (WLAN)

In a wireless local area network, a device called an Access Point (AP) connects computers to the network.

The access point has a small antenna attached to it, which allows it to transmit data back and forth over radio

signals. With an indoor access point as seen in the picture, the signal can travel up to 300 feet. With an outdoor

access point the signal can reach out up to 30 miles to serve places like manufacturing plants, industrial

locations, college and high school campuses, airports, golf courses, and many other outdoor venues.

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D-Link DIR-457U User Manual Page 37