Specifications

Glossary 71
Networking Alpha Signs (9700-0112C) October 8, 2003
Converts a single jack into a dual jack to allow two accessories to be connected at the same time.
EEPROM
Electronic Erasable Programmable Read Only Memory. A small device usually found inside the access door of
an LED sign containing a program (firmware) that runs the sign, which can be written to over and over again.
electrical information
Input voltage, frequency, amperage, and watts.
electronic display
An electronic sign that combines text and graphics to convey a fixed or changeable, moving or unmoving
advertising or locational message. The following terms are used interchangeably: ACD display, alphanumeric
display, auditorium marquee, banner, banner board, communication center, communicator, digital display, digital
sign, directional marquee, display, display board, electronic banner, electronic display, EMC (electronic message
center), electronic sign, graphic display, hall marquee, LED display, LED sign, light board, marquee, message
board, message center, message display, moving message display, moving message sign, news ticker, price
changer, programmable sign, reader board, salescaster, scanvertiser, sign, silent radio, silent salesman, stock ticker,
ticker, ticket marquee, time-temperature display, and zipper.
electronic sign
An electronic sign that combines text and graphics to convey a fixed or changeable, moving or unmoving
advertising or locational message. See also electronic display.
EMC
Electronic Message Center. An electronic sign that combines text and graphics to convey a fixed or changeable,
moving or unmoving advertising or locational message. See also electronic display.
enclosure
A case that provides protection to someone against contact with the enclosed equipment, and to protect the
enclosed equipment from the elements. NEMA standards allow for many different types of enclosures, indoor and
outdoor.
end node
The machine or unit (node) that serves as an originator or final destination of network traffic, but does not
relay traffic originated by other nodes.
end-of-line terminator
Used to define the start and end of a network. Helps control electrical interference on the network and provide
stable communication across a network.
EPROM
Erasable Programmable Read Only Memory. A small device usually found inside the access door of an LED
sign containing a program (firmware) that runs the sign.
ERP
Enterprise Resource Planning. A billion dollar sales industry, of which Oracle is its largest company, for
systems designed to coordinate database management for sales forecasts, order management, purchasing, product
scheduling, inventory management, and other functions required to complete the manufacturing of a product.
ESD
Electrostatic Discharge. Discharge of stored static electricity that can damage electronic equipment and impair
electrical circuitry, resulting in complete or intermittent failures.