Glossary - 6
Symbol LS2208 Product Reference Guide
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.
Q
Quiet Zone. A clear space, containing no dark marks, which precedes the start character of a bar code symbol and follows
the stop character.
QWERTY. A standard keyboard commonly used on North American and some European PC keyboards. “QWERTY” refers
to the arrangement of keys on the left side of the third row of keys.
R
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.
RF. Radio Frequency.
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.
Self-Checking Code. A symbology that uses a checking algorithm to detect encoding errors within the characters of a bar
code symbol.
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.
Содержание LS2208-SR20001R
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Страница 87: ...RS 232 Interface 6 9 Baud Rate continued Baud Rate 9600 Baud Rate 19 200 Baud Rate 38 400 ...
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Страница 265: ...Advanced Data Formatting 14 37 Beeps Select a beep sequence for each ADF rule Beep Once Beep Twice Beep Three Times ...
Страница 271: ...Advanced Data Formatting 14 43 Keyboard Characters continued Send Send Send Send Send Send Send Send ...
Страница 273: ...Advanced Data Formatting 14 45 Keyboard Characters continued Send 8 Send 9 Send Send Send Send Send Send ...
Страница 275: ...Advanced Data Formatting 14 47 Keyboard Characters continued Send H Send I Send K Send J Send L Send M Send O Send N ...
Страница 277: ...Advanced Data Formatting 14 49 Keyboard Characters continued Send X Send Y Send Send Z Send Send Send _ Send ...
Страница 279: ...Advanced Data Formatting 14 51 Keyboard Characters continued Send h Send i Send k Send j Send l Send m Send o Send n ...
Страница 281: ...Advanced Data Formatting 14 53 Keyboard Characters continued Send x Send y Send Send z Send Send Send ...
Страница 301: ...Advanced Data Formatting 14 73 Alphanumeric Keyboard Space Dash ...
Страница 302: ...14 74 Symbol LS2208 Product Reference Guide Alphanumeric Keyboard continued ...
Страница 303: ...Advanced Data Formatting 14 75 Alphanumeric Keyboard continued _ Underscore ...
Страница 305: ...Advanced Data Formatting 14 77 Alphanumeric Keyboard continued A B D C E F H G J I ...
Страница 306: ...14 78 Symbol LS2208 Product Reference Guide Alphanumeric Keyboard continued K L N M O P R Q T S ...
Страница 307: ...Advanced Data Formatting 14 79 Alphanumeric Keyboard continued U V X W Y Z End Of Message Cancel ...
Страница 308: ...14 80 Symbol LS2208 Product Reference Guide Alphanumeric Keyboard continued a b d c e f h g j i ...
Страница 309: ...Advanced Data Formatting 14 81 Alphanumeric Keyboard continued k l n m o p r q t s ...
Страница 310: ...14 82 Symbol LS2208 Product Reference Guide Alphanumeric Keyboard continued u v x w y z ...
Страница 318: ...A 8 Symbol LS2208 Product Reference Guide ...
Страница 323: ...Appendix C Sample Bar Codes Code 39 UPC EAN UPC A 100 123ABC 0 12345 67890 5 ...
Страница 326: ...D 2 Symbol LS2208 Product Reference Guide 3 4 5 6 3 4 5 6 ...
Страница 327: ...Numeric Bar Codes D 3 7 8 9 Cancel To correct an error or change a selection scan the bar code below Cancel 7 9 8 ...
Страница 328: ...D 4 Symbol LS2208 Product Reference Guide ...
Страница 336: ...Glossary 8 Symbol LS2208 Product Reference Guide ...
Страница 341: ...Index 5 W wand emulation connection 9 2 10 2 wand emulation default parameters 9 3 10 3 wand emulation parameters 9 4 ...
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