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Glossary
User’s Guide
EMP Link 21L A utility software program that allows the projector to be connected to a computer so that the computer can be used to control
the projector. For details on acquiring the software and for instructions on using the software and compatible projector
models, please visit the Web site http://www.epson.co.uk/support/download/index.htm.
ESSID ESS is an abbreviation of Extended Service Set. The ESSID is an identification number for connecting with a counterpart on
a wireless LAN. Wireless communication is possible between devices with corresponding ESSID numbers.
With Macintosh computers, the ESSID is used as the network name that is displayed for "computer-to-computer" networks.
Gateway A server (router) for communicating across a network divided according to subnet masks.
HDTV An abbreviation for High-Definition Television. It refers to high-definition systems which satisfy the following conditions.
•Vertical resolution of 750p or 1125i or greater (p = progressive scanningg, i = interlaced scanningg)
•Screen aspect ratiog of 16:9
•Dolby Digitalg audio reception and playback (or output)
Interlaced scanning A method of image scanning whereby the image data is divided into fine horizontal lines which are displayed in sequence
starting from left to right and then from the top to the bottom of the screen. The even-numbered lines and odd-numbered lines
are displayed alternately.
IP Address A series of numbers that identifies a device that is connected to a network.
LEAP One of the authentication methods used by CCXg. It uses usernames and passwords for authentication without using
electronic signatures.
MAC address MAC is an abbreviation of Media Access Control. The MAC address is an ID number unique to each network card. A unique
number is assigned to each network card. Data is transmitted between cards (devices) based on this identification.
Progressive scanning A method of image scanning whereby the image data from a single image is scanned sequentially from top to bottom to create
a single image.
RADIUS server RADIUS is an abbreviation for Remote Authentication Dialin User Service. It is a protocol that is used for authenticating
transmissions for a variety of network servers including wireless LANs. A RADIUS server is an authentication serverg that
stores information such as usernames and passwords and concentrates functions such as authenticating access to wireless
LAN access points. By using a RADIUS server, access points and user information can be centrally managed without needing
to store user information separately at each access point when there are several access points on a wireless LAN.
Refresh rate The light-emitting element of a display maintains the same luminosity and colour for an extremely short time. Because of this,
the image must be scanned many times per second in order to refresh the light-emitting element. The number of refresh
operations per second is called the "refresh rate", and is expressed in hertz (Hz).
Resize display This function is used to allow images that have a resolution more than or less than the projector's panel resolution to be
projected so that they fill the whole of the projection area.
SDTV An abbreviation for Standard Definition Television. It refers to standard television systems which do not satisfy the conditions
for High-Definition Television.
Security lock A device consisting of a projector case with a hole in it that a commercially-available theft-prevention cable can be passed
through in order to secure the device to a table or pillar. This projector is compatible with the Microsaver Security System
manufactured by Kensington.