Symbol LS 3408, Product Reference Manual

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LS 3408 Product Reference Guide GL-12
Radio Frequency Data Communication (RFDC) Handheld or vehicle mounted units that send and receive
messages by radio frequency. Information from the units is
displayed on a screen for workers and allows real-time,
two-way exchange of data between terminals when one
terminal is mobile and the other is a host computer at a
remote location.
Radio Frequency Identification (RFID) The use of small radio transponders that are activated by a
reading transmitter. The transponder carries a unique ID
code or other information in its memory and can be read at
a distance without line of sight.
Radio Frequency Tag An electronic tag capable of receiving, storing and/or
transmitting digital information.
Reflectance Amount of light returned from an illuminated surface.
Resolution The narrowest element dimension which is distinguished
by a particular reading device or printed with a particular
device or method.
RSS Reduced Space Symbology: A family of space efficient
symbologies developed by UCC.EAN.
Scan Area Area intended to contain a symbol.
Scanner An electronic device used to scan bar code symbols and
produce a digitized pattern that corresponds to the bars and
spaces of the symbol. Its three main components are:
1. Light source (laser or photoelectric cell) - illuminates a
bar code.
2. Photodetector - registers the difference in reflected light
(more light reflected from spaces).
3. Signal conditioning circuit - transforms optical detector
output into a digitized bar pattern.
Scanning Mode The scanner is energized, programmed, and ready to read a
bar code.
Scanning Sequence A method of programming or configuring parameters for a
bar code reading system by scanning bar code menus.
Self-Checking Code A symbology that uses a checking algorithm to detect
encoding errors within the characters of a bar code symbol.
Skew Rotation of a bar code symbol on an axis parallel to the
symbol's length.