Glossary - 9
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.
Shared Key.
Shared Key authentication is an algorithm where both the AP and the MU share an authentication
key.
SHIP.
Symbol Host Interface Program.
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.
STEP.
Symbol Terminal Enabler Program.
Subnet.
A subset of nodes on a network that are serviced by the same router. See
Router
.
Subnet Mask.
A 32-bit number used to separate the network and host sections of an IP address. A custom
subnet mask subdivides an IP network into smaller subsections. The mask is a binary pattern that is
matched up with the IP address to turn part of the host ID address field into a field for subnets. Default is
often 255.255.255.0.
Substrate.
A foundation material on which a substance or image is placed.
SVTP.
Symbol Virtual Terminal Program.
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.
Summary of Contents for MC7090CN
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