Glossary - 8
MC1000 with Windows CE 4.2 User Guide
R
RAM.
Random Access Memory. Data in RAM can be accessed in random order, and quickly written and read.
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.
ROM.
Read-Only Memory. Data stored in ROM cannot be changed or removed.
RS-232.
An Electronic Industries Association (EIA) standard that defines the connector, connector pins, and signals used to
transfer data serially from one device to another.
S
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.
SDK.
Software Development Kit
Self-Checking Code.
A symbology that uses a checking algorithm to detect encoding errors within the characters of a bar
code symbol.
SID.
System Identification code. An identifier issued by the FCC for each market. It is also broadcast by the cellular carriers
to allow cellular devices to distinguish between the home and roaming service.
SMDK.
Symbol Mobility Developer’s Kit.
Soft Reset.
See
Warm Boot
.
Space.
The lighter element of a bar code formed by the background between bars.
Specular Reflection.
The mirror-like direct reflection of light from a surface, which can cause difficulty decoding a bar code.
Start/Stop Character.
A pattern of bars and spaces that provides the scanner with start and stop reading instructions and
scanning direction. The start and stop characters are normally to the left and right margins of a horizontal code.
Summary of Contents for MOTOTRBO MC1000
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