Datalogic A30, Hardware Manual

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GLOSSARY
52
ISO
(International Organization for Standardization): A network of the national standards institutes of
several countries producing world-wide industrial and commercial standards.
LED (Light Emitting Diode)
A low power electronic light source commonly used as an indicator light. It uses less power than
an incandescent light bulb but more than a Liquid Crystal Display (LCD).
LED Illuminator
LED technology used as an extended lighting source in which extra optics added to the chip
allow it to emit a complex radiated light pattern.
Matrix Symbologies (2D Codes)
An arrangement of regular polygon shaped cells where the center-to-center distance of adjacent
elements is uniform. Matrix symbols may include recognition patterns which do not follow the
same rules as the other elements within the symbol.
Multidrop
A communication protocol for connecting two or more cameras in a network with a concentrator
(or controller) and characterized by the use of individual device addresses.
Multi-row (or Stacked) Symbologies
Symbologies where a long symbol is broken into sections and stacked one upon another similar
to sentences in a paragraph.
RAM
Random Access Memory. Data in RAM can be accessed in random order, and quickly written
and read.
Transmission Control Protocol/Internet Protocol (TCP/IP)
A suite of standard network protocols that were originally used in UNIX environments but are
now used in many others. The TCP governs sequenced data; the IP governs packet forwarding.
TCP/IP is the primary protocol that defines the Internet.