Symbol MK2200 MicroKiosk, Product Reference Manual

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Glossary - 6 MK2200 MicroKiosk for CE .NET 4.2 Product Reference Guide
Parameter. A variable that can have different values assigned to it.
Percent Decode. The average probability that a single scan of a bar code would result in a
successful decode. In a well-designed bar code scanning system, that
probability should approach near 100%.
PING. (Packet Internet Groper) An Internet utility used to determine whether a particular
IP address is online. It is used to test and debug a network by sending out a
packet and waiting for a response.
Print Contrast Signal
(PCS).
Measurement of the contrast (brightness difference) between the bars and spaces
of a symbol. A minimum PCS value is needed for a bar code symbol to be
scannable. PCS = (RL - RD) / RL, where RL is the reflectance factor of the
background and RD the reflectance factor of the dark bars.
Programming Mode. The state in which a scanner is configured for parameter values. See SCANNING
MODE.
Protected Mode. An application can be assigned password protection so that it can only run when a
password is entered. The password can be assigned for a specific application
using the RDM, System Menu or the Control Panel.
Quiet Zone. A clear space, containing no dark marks, which precedes the start character of a
bar code symbol and follows the stop character.
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.
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.
SMDK. Symbol Mobility Developer Kit
Self-Checking Code. A symbology that uses a checking algorithm to detect encoding errors within the
characters of a bar code symbol.
Shared Key. Shared Key authentication is an algorithm where both the AP and the MU share an
authentication key.