Devolo dLAN 1200+ WiFi Installation Guide download pdf (Page 11)

10 Introduction

devolo dLAN 1200+ WiFi ac

2.1 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 networks do not interfere with one an-

other. Networking via dLAN is fast and secure. The

data is encrypted using a key to prevent interception by

third parties.

2.2 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 com-

puters in pairs (peer-to-peer, p2p), a central access

point is required to set up a network of multiple devic-

es. Such access points are frequently combined 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 net-

work cables (in a LAN) or household wiring (in a dLAN)

to control access to a WLAN, wireless networking nat-

urally presents special security challenges. WLANs

therefore use a number of security measures, such as a

concealed network name, data encryption and access

control via the MAC addresses of the network adapt-

ers.

2.2.1 Wi-Fi or WLAN?

Wi-Fi is an invented brand name of the Wi-Fi Alliance,

a consortium that certifies devices with wireless inter-

faces. In many countries, Wi-Fi is also used synony-

mously with WLAN, which if taken strictly, is incorrect,

because Wi-Fi designates the wireless standard and

WLAN the wireless network.

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Devolo dLAN 1200+ WiFi Installation Guide Page 11

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