Glossary - 8
Symbol DS3408 Product Reference Guide
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.
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.
Symbol Aspect Ratio.
The ratio of symbol height to symbol width.
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.
Содержание DS 3408
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Страница 51: ...User Preferences 4 7 Time Delay to Low Power Mode continued 15 Minutes 2Bh 1 Hour 31h...
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Страница 258: ...15 10 Symbol DS3408 Product Reference Guide Code Types continued IATA 2 OF 5 I 2 OF 5 Code 93 UPC A UPC E EAN 8 EAN 13...
Страница 259: ...Advanced Data Formatting 15 11 Code Types continued MSI UCC EAN 128 UPC E1 Bookland EAN Trioptic Code 39 Code 11 Code 32...
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Страница 367: ...Appendix C Sample Bar Codes Code 39 UPC EAN UPC A 100 123ABC 0 12345 67890 5...
Страница 369: ...Sample Bar Codes C 3 PDF417 DataMatrix Maxicode...
Страница 370: ...C 4 Symbol DS3408 Product Reference Guide QR Code US Postnet UK Postal...
Страница 373: ...Numeric Bar Codes D 3 Cancel To correct an error or change a selection scan the bar code below Cancel...
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