ProSoft Technology inRA-x ILX34-AENWG, Руководство по установке

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Glossary of Terms ILX34-AENWG ♦ POINT I/O Platform
Setup Guide Wireless Point I/O Adapter
ProSoft Technology, Inc.
Page 65 of 79
July 31, 2009
Directional Antenna
Transmits and receives radio waves off the front of the antenna.
Diversity Antenna
An antenna system that uses multiple antennas to reduce interference and
maximize reception and transmission quality.
DNS
The domain name system is a hierarchical, distributed method of organizing the
name space of the Internet. The DNS administratively groups hosts into a
hierarchy of authority that allows addressing and other information to be widely
distributed and maintained. A big advantage to the DNS is that using it eliminates
dependence on a centrally-maintained file that maps host names to addresses.
DTE
Data Terminal Equipment, for example, a computer or terminal.
Dual Band
A device that is capable of operating in two frequencies. On a wireless network,
dual-band devices are capable of operating in both the 2.4 GHz (802.11b/g) and
5 GHz (802.11a) bands.
E
EAP
Extensible Authentication Protocol. A protocol that provides an authentication
framework for both wireless and wired Ethernet enterprise networks.
EIRP
Equivalent isotropically radiated power (EIRP) is the amount of power that would
have to be emitted by an isotropic antenna (that evenly distributes power in all
directions and is a theoretical construct) to produce the peak power density
observed in the direction of maximum antenna gain.
Encryption
Method of scrambling data so that only the intended viewers can decipher and
understand it.
ESD
Electrostatic Discharge. Can cause internal circuit damage to the coprocessor.
ESSID
Extended Service Set Identifier. A name used to identify a wireless network.
Ethernet
A physical layer standard using carrier sense multiple access with collision
detection (CSMA/CD) methods.