Macsense Connectivity MIH-120 Bedienungsanleitung PDF herunterladen (Seite 52)

DSL

DSL stands for Digital Subscriber Line. DSL transfers high-bandwidth information

and data to homes and small businesses through copper telephone lines. It is

predicted to replace IDSN in bringing both motion, 3-D, voice and data signals to

the users.

ESS

One of three IEEE 802.11 basic topology schemes. ESS WLAN configurations

consist of multiple BSS cells that can be linked by either wired or wireless

backbones. IEEE 802.11 supports ESS configurations in which multiple cells use

the same channel, and configurations in which multiple cells use different

channels to boost aggregate throughput.

Dynamic IP address

A dynamic IP address is an IP address that is given out automatically from a

DHCP Server to client computers or routers on a LAN or WAN.

Firewall

A device that protects information in the internal private network from the outside

network.

Firmware

A program code that is inserted into a programmable read-only memory to

become a computing device. It is created and tested like a software.

Gateway

An entrance to a network. It associates with both router and switch whereas the

router gives direction as data arrives at the gateway and the switch, on the other

hand, furnishes its actual path in and out of the gateway.

HTTP

The Hypertext Transfer Protocol is an application protocol and a set of rules for

file exchange on the World Wide Web.

IEEE

Abbreviation of Institute of Electrical and Electronics Engineers. Founded in 1884,

the IEEE is an organization composed of engineers, scientists, and students. The

IEEE is best known for developing standards for the computer and electronics

industry. In particular, the IEEE 802 standards for local area networks are widely

adopted.

IEEE 802.11 Standard

In wireless LAN technology, 802.11 refers to standards set by the Institute of

Electrical and Electronics Engineers. There are three specifications in the family,

802.11, 802.11a and 802.11b. 802.11 and 802.11b refer to wireless Ethernet LANs

and operate at frequencies around the 2.4 GHz range. 802.11 generally have data

speeds of 1 or 2 Mbps while 802.11b can have speeds of 5.5 or 11 Mbps. 802.11b

can also realize speeds up to 20 Mbps. 802.11a refers to wireless ATM systems

and operates at frequencies between 5 to 6 G Hz.

Infrastructure

This type of network is a wireless or other type of small network where the

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Macsense Connectivity MIH-120 Bedienungsanleitung Seite 52