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Introduction
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devolo dLAN 200 AV Wireless G
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1
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
(
d
irect
L
ocal
A
rea
N
etwork) 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
(
W
ireless
L
ocal
A
rea
N
etwork) 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
Summary of Contents for 200 AV Wireless G
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