Bedienungsanleitung Grundig 55GFB6623 (Seite 103 von 108) (Englisch)

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ENGLISH

Router

A router is a network component that links sev-

eral computer networks. The router analyses (on

the basis of layer 3 information) the network

packages of a protocol it receives and forwards

it to the intended destination network. Conven-

tional routers work on layer 3 of the application

layer. A router has an interface for every net-

work connected to it. When data is received, the

router determines the correct path to the destina-

tion and thereby the suitable interface via which

the data can be transferred. For this it uses a

locally available routing table that specifies via

which router connection a particular network

can be reached.

RoviGuide™

Electronic channel guide with various informa-

tion on the television programmes.

SCR (Single Channel Router)

Unrestricted single cable system.

If your antenna system is equipped with a single

cable multi-switch, the televisions which are con-

nected to this antenna system can receive televi-

sion channels independently from one another.

Security (WEP/WPA)

WEP (wired equivalent privacy) is the standard

encryption algorithm for WLAN. It controls both

access to the network as well as ensuring the

confidentiality and integrity of data. This proce-

dure is considered insecure nowadays. For this

reason, more recent WLAN installations should

use the more secure WPA encryption.

Symbolrate

This is the number of transmitted symbols in the

digital transmission technology per time unit

Transponder

A transponder receives data on a satellite and

then transmits it again. For example, an earth

station can transmit data signals for television

channels to a geostationary satellite, which

sends this back to earth. Any suitable satellite

antenna with visual contact to the satellite can

receive the signal.

Vibrant Colour

Increases the colour contrast and the contrast

adjustment. This setting is mostly too strong for

use with normal pictures and should only be

used where necessary (low or off) otherwise

nuances in the image can be suppressed.

Wi-Fi

The Wi-Fi Alliance is an organisation that has

taken on the task of certifying products from

different manufacturers on the basis of the IEEE-

802.11 standard, thereby ensuring that different

wireless devices can operate in parallel.

On 31 October 2002, the consortium an-

nounced a new encryption technology – Wi-Fi

Protected Access (WPA) – a part of the (then)

forthcoming IEEE standard 802.11i which would

replace the WEP encryption procedure, which

was already regarded as insecure before the

new standard came into force. After 802.11i

came into force, the Wi-Fi group coined the term

WPA2.

IEEE 802.11e is an industrial standard issued

by the Institute of Electrical and Electronics En-

gineers (IEEE) and a supplement to the wireless

LAN standard IEEE 802.11 for supporting the

quality of service.

802.11e works according to a similar principle

as the QoS procedure DiffServ. Data packages

in the WLAN are marked by the sender and the

access point is stopped in order to handle pack-

ages with higher priority.

With the aid of 802.11e, real-time application

such as Voice over IP are better supported as

they require a certain bandwidth in the network

to ensure the connection is not interrupted if

other network traffic creates too great a burden

on the available data transfer rate.

GLOSSARY

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