Introduction; What Exactly Is Dlan; What Is Wlan - Devolo 200 AV Wireless G User Manual

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Introduction

Intelligent and secure technologies such as dLAN (networking via the household
power grid) and WLAN (wireless networking) have made setting up a home net-
work fast, easy and economical, while making the installation of expensive, ded-
icated wiring superfluous. The available performance and effort required for the
installation also compares favourably to traditional methods – dLAN and WLAN
technology now attains speeds you would expect from other LAN technologies,
and installing it is a breeze!
1.1

What exactly is dLAN?

dLAN (direct Local Area Network) uses the household power grid to transfer
data between computers equipped with suitable adapters and other network
components. As a result, any power outlet can be used as a network access
point. The data is modulated prior to transfer and sent as a signal via household
power lines. State-of-the-art technology ensures that the power and data net-
works do not interfere with one another. Networking via dLAN is fast and
secure. The data is encrypted using a key to prevent easy interception by third
parties.
1.2

What is WLAN?

WLAN (Wireless Local Area Network) refers to the use of radio technology to
network computers and other devices. While it is possible to wirelessly connect
computers in pairs ("peer-to-peer", p2p), a central access point is required to
set up a network of multiple devices. Such access points are frequently com-
bined in a single device with modems for Internet access and routers to manage
network traffic.
The wireless network established by an access point using a specific channel
(from 1 to 13) and name (SSID) has a limited range. The range of the access
point, which is also known as a "radio cell", is impeded by building walls. In
some cases, stable connections are often only possible between WLAN devices
within a single room.
As it is not possible to rely on hardware such as network cables (in a LAN) or
household wiring (in a dLAN) to control access to a WLAN, wireless networking
naturally presents special security challenges. WLANs therefore use a number of
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Introduction
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devolo dLAN 200 AV Wireless G
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