Barcode Label Printers
Glossary S
Browse through our glossary to find out definitions for bar coding and RFID terms.
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| Glossary Term | Definition |
| SOLID STATE LASER SCANNER | A leading edge, laser-scanning device that emits light at a wavelength of 670 nm and also at 780 nm. |
| SOURCE MARKING | The process of labeling an item with a bar code at the point of its initial production. |
| SPACE | The lighter element of a bar code usually formed by the background between the bars. |
| SPACE WIDTH | The thickness of a space measured from the edge closest to the symbol’s start character to the trailing edge of the same space. |
| SPEED/THROUGHPUT | Used interchangeably to refer to a rate of motion or printer performance calculated inips or inches per second. The higher the ips, the greater the printer's performance rating. |
| SPREAD SPECTRUM | A transmission technique developed by the U.S. military in World War II to provide secure voice communications, spread spectrum is the most commonly used WLAN technology today. It provides security by "spreading" the signal over a range of frequencies. The signal is manipulated in the transmitter so that the bandwidth becomes wider than the actual information bandwidth. De-spreading the signal is impossible for those not aware of the spreading parameters; to them, the signal sounds like background noise. Interference from narrowband signals is also minimized to background noise when it is de-spread by the receiver. Two types of spread spectrum exist: direct sequence and frequency hopping. |
| SQL | Structured Query Language used to talk to databases. |
| STACKED CODE SYMBOLS | See Two-Dimensional Bar Code. |
| STANDARD | A set of rules, specifications, instructions, and directions on how to use a bar code or other automatic identification system to your advantage and profit. Usually issued by an organization, such as LOGMARS, HIBCC, UPC, etc. |
| STANDARD NUMBERING SYSTEMS | Numbering systems identifying objects and people that have been released to and are generally accepted by the public. |
| START CHARACTER | A unique character to the left of the bar code which allows for bi-directionality. In a vertical bar code, the start character is at the top. |
| STOP CHARACTER | A unique character to the right of the bar code which allows for bi-directionality. In a vertical bar code, the stop character is at the bottom. |
| STORAGE TEMPERATURE | Denotes the prescribed temperature range for the safe storage of a thermal printer. |
| STREAM MODE | A communications protocol supported only by the Telnet and TCP protocols. Stream mode transfers serial characters as they are received by encapsulating them in a packet and sending them to the host. |
| SUBSTITUTION ERROR | A mis-encodation, misread, or human key entry error where incorrect information is substituted for a character that was to be entered. |
| SUBSTRATE | The surface on which a bar code symbol is printed. Also, interchangeably, referred to as media. |
| SUPERCODE | A 2D symbology using a packet structure, a more flexible variation of a stacked symbology, allowing for non-rectangular symbol shapes. |
| SUPPLIER | The party that produces, provides or furnishes an item or service in a transaction. |
| SYMBOL | A combination of characters, including start/stop characters, quiet zones, data characters and check characters required by a particular symbology that form a complete, scanable entity. |
| SYMBOL DENSITY | The number of data characters per unit length; usually expressed as characters per inch (CPI). |
| SYMBOL LENGTH | The distance between the outside edges of the quiet zone. |
| SYMBOLOGY | The language used in bar code technology (e.g. UPC, Code 39, etc). |