Wasp Duraline WLS 8400 ER Series, Product Reference Manual

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WLS 8400 Product Reference Guide GL-14
Symbol A scannable unit that encodes data within the
conventions of a certain symbology, usually
including start/stop characters, quiet zones, data
characters, and check characters.
Symbol Aspect Ratio The ratio of symbol height to symbol width.
Symbol Density The number of data characters per unit length; usually
expressed as characters per inch (CPI).
Symbol Height The distance between the outside edges of the quiet
zones of the first row and the last row.
Symbol Length Length of symbol measured from the beginning of
the quiet zone (margin) adjacent to the start character
to the end of the quiet zone (margin) adjacent to a stop
character.
Symbology The structural rules and conventions for representing
data within a particular bar code type (e.g. UPC/
EAN, Code 39).
Tilt Rotation of a bar code symbol on an axis
perpendicular to the substrate.
Tolerance Allowable deviation from the nominal bar or space
width.
2-dimensional (2D) symbology A machine-readable symbol which must be examined
both vertically and horizontally to read the entire
message. A 2D symbol may be one of two types of
machine-readable symbols: a Matrix Symbol or a
stacked symbol. 2D symbols differ from linear bar
codes with the ability for high data content, small
size, data efficiency and error correction capability.
UCC Uniform Code Council: the organization that
administers the U.P.C and other retail standards.
UCC.EAN-128 Code 128 with a Function 1 character in the first
position that is the symbology used with the
UCC.EAN format for a universal product number
(UPN).
UPC Universal Product Code. A relatively complex
numeric symbology. Each character consists of two
bars and two spaces, each of which is any of four
widths. The standard symbology for retail food
packages in the United States.