American Blood Commission symbol, developed in 1977 by the Committee for the Commonality in Blood Banking Automation (CCBBA) as a bar code standard for automated systems in the blood service community. The symbology used in the ABC symbol is Codabar.
In computer networking, a wireless access point (WAP) is a device that allows wireless communication devices to connect to a wireless network using Wi-Fi, Bluetooth or related standards.
The determination of whether any element width or inter-character gap width (if applicable) differs from its nominal width by more than the printing tolerance.
An operating parameter setting that allows the reader to store scanned labels in a buffer until a transmit command is entered.
Operating mode in which the terminal or reader stores scanned information in the buffer until it receives a transmit command.
The determination of whether an element width or intercharacter gap width (if applicable) differs from its nominal width by more than the printing tolerance.
Acknowledge character. A handshake character that indicates that a message was received.
Automated Data Collection or Automated Data Capture – refers to all technologies that automate the process of data collection without the use of a keyboard, including bar code, magnetic stripe, (OCR) optical card reader, voice recognition, smart card, or (RFID) radio frequency identification. ADC provides a quick, accurate, and cost-effective way to collect and enter data.
(1) A substance (cement, glue, gum) capable of holding materials together by surface contact.
(2) The portion of a pressure sensitive label which allows the label to cling to its intended surface.
Attention identifier. A character in a data stream indicating that the user has pressed a key, such as Enter, requesting an action by the system.
Automotive Industry Action Group – a trade association responsible for creating automotive industry standards pertaining to bar code symbology and common label formats.
Automatic Identification Manufacturers, Inc. – a U.S. trade association headquartered in Pittsburgh, PA who represent the manufacturers of automatic identification systems.
In an automatic identification system (Auto ID), the relative position and orientation of a scanner to the symbol.
A character set consisting of letters, numbers, and usually other characters such as special symbols.
American National Standards Institute. A non-governmental organization responsible for developing voluntary manufacturing standards.
The opening in an optical system that establishes the field of view.
Application programming interface. A well-defined interface to routines that an application can use to request and perform system-level tasks.
One or more programs that perform functions required by an end user. Compare with utility.
The temperature at the time the label is applied.
American Standard Code for Information Interchange. A standard seven bit code almost always transmitted with a parity bit for a total of eight bits per character. The ASCII set consists of both control and printing characters. ASCII was established by the American National Standards Institute to achieve compatibility between various types of data communication equipment. Equivalent to the International ISO 7-bit code. ASCII is the most commonly used code for non-IBM equipment. See also EBCDIC.
ASCII control character
One of the first 32 characters (0 through 31 in decimal representation) in the ASCII character set. Each of these characters has a standard control function, such as backspace or carriage return.
In a bar code symbol, the ratio of bar height to symbol length.
In a data communication system, an arrangement without an associated clock that ensures that every character is transmitted independently.
The terminal or reader has a beeper and a clicker that produce audio signals to indicate terminal status. You can change the beep volume and enable or disable the keypad clicker with configuration commands.
A feature that enables a bar code reader to interpret a scanned bar code label, identifying both the symbology and the data encoded in the label.
A terminal or reader configuration feature that defines the maximum time the terminal stays on when there is no activity. At automatic shutoff, the contents of memory are saved and the terminal or reader resumes when it is turned on again.
Average background reflectance
Expressed as a percentage; the average of the background reflectance from at least five different points on a sheet.
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Continuous Bar Code
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Data Line Print
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The European Article Number is the European version of the UPC (Universal Product Code) bar code of retail food packaging that enables this linear bar code to be used internationally. Like the U.S. equivalent UPC code, there are two different types of EAN codes, EAN-8 and EAN-13.
EAN-13 has 13 characters or symbols. It is very much like the UPC code and has the 13th character as a means of identifying in what country the product will be used.
EAN-8 has a left-hand guard pattern, four odd parity digits, a center guard pattern, four even parity digits, and a right hand guard pattern with a total of eight symbols.
Extended Binary Coded Decimal Interchange Code was developed by IBM, and is used extensively in systems featuring IBM processors. Each character is represented by a six bit structure with the capability of generating 64 combinations.
A scanner trigger configuration that makes the laser turn on after you pull the trigger and stay on until you pull it a second time. Simply releasing the trigger does not turn the laser off. If the laser is left on, the scanner timeout turns the laser off. Contrast with level triggering.
Irregularities in the printing of bar code elements, resulting in a non-uniform edge and edge errors.
Electronic Data Interchange - a method by which data is electronically transmitted from one point to another.
Electronic Data Processing - the act of processing information electronically.
Electrically erasable programmable read only memory.
Electronic Industries Association – a trade association.
A method of printing that utilizes a special electrostatic paper or charged drum, both of which attract toner to the charged area.
A single bar or space in a bar code symbol.
An operating mode in which the printer has the operating characteristics of another printer.
The total lineal dimension occupied by all characters of a code pattern, including the start/stop characters and data.
The abbreviation for erasable programmable Read Only Memory – (See ROM).
End of file character. Attached to the last record transmitted in a block of records and after the EOR, if the EOF character field is enabled.
End of message character. Sent at the end of reader messages and at the end of host messages. The transmitted and received EOM characters can be defined separately.
End of program block/continue character. Sent by the host after a block of IRL program statements to tell the reader that another block of IRL statements is coming.
End of record character. Attached to the end of every record transmitted by the polled device if the EOR character field is enabled.
Enterprise Resource Planning – a term used to describe a new wave of integration system software capabilities designed to link a company’s respective operations—including human resources, financials, manufacturing, and distribution—with their customers and suppliers.
A message from a device or program advising the user of an error that requires intervention to solve. For example, if you receive the error message "Unable to establish connection to host. Session ended." when you turn on the terminal, you may need to configure the terminal.
Electrostatic discharge. Transient, rapid transfer of charge between bodies at different electrostatic potentials, either: caused by direct contact, by arc-over of near proximity, or induced by an electrostatic field.
A flexible work surface composed of vinyl or rubber with an added component to allow static to drain from its surface to the ground through a connected grounding cord.
A type of LAN that allows the transmission of computer data, audio data, and video data. Ethernet uses the access method known as CSMA/CD (carrier sense multiple access with collision detection). Refer to the IEEE 802.3 standard for the specifications.
European Telecommunications Standards Institute. European agency responsible for setting and enforcing regulations associated with telecommunications.
To perform an instruction or a computer program.
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The part of the substrate (label media) where printing occurs.
Federation of Automated Coding Technology – a bureau of AIM consisting of organizations that use and promote automatic identification among their members.
Federal Communications Commission. U.S. federal government agency responsible for setting and enforcing regulations associated with telecommunications.
A printer control panel button that advances the media.
A printer control panel button that advances the media and causes the printer to pause printing.
A graphic element that is the basic unit of a format. The four basic types of fields are bar code, graphic, line, and text.
A window on a host such as an AS/400 in which input is restricted to specific areas.
A photographic film of a specific bar code or optical character recognition (OCR) symbol that is used to produce a printing plate.
Software routines stored in read only memory (ROM). Unlike random access memory (RAM), ROM stays intact even without electrical power. See also software.
First Read Rate (FRR)
The ratio of the number of successful reads on the first scanning attempt to the number of attempts. Commonly expressed as a percentage representing the number of successful reads per 100 attempts for a particular symbol; used as an approximation of "human friendliness" of the bar code reader and symbol to the operational environment.
Fixed Data Field
Bar code and text fields that never vary from one label to the next; the data in a fixed field is a permanent part of the format.
A format in which the data never varies from one label to the next, such as with a return address label. A fixed format needs no additional data to print a label.
Characteristic of a bar code symbology in which the number of characters per symbol is predetermined. Opposite of variable length.
The ratio between the width of the bars in the code is a fixed standard and cannot be changed.
A character with a data format of fixed position, with contents that vary over a specified range of values; each value representing significant information that is presented to a data processing system.
A type of nonvolatile memory. Flash memory must be erased in blocks and is commonly used as a supplement to or replacement for hard disks in portable computers and data collection devices.
A method for controlling the flow of data between the reader and the serial port. It stops the transmitting device from sending data when the receiving device buffer fills up and starts it again when the buffer empties. This can be done through software (XON/XOFF) or hardware (CTS/RTS).
Read/Writeable RAM (a.k.a. Non-Volatile RAM)
This is a type of Random Access Memory chip that does not lose its contents when its power is turned off; however, it can be intentionally written to, read from, and intentionally erased. It is a type of RAM and, hence, interacts with the computer or processor as described under “RAM” except that it does not lose its contents when power is removed. .
The process whereby a pre-printed label, tag or ticket is printed by using a raised image plate surface to transfer wet ink to a printing substrate.
A thin coating of ink applied to the top of printing screen by the flood bard or, in manual operations, by the squeegee prior to printing the stroke.
A cloth or plastic tape coated with several layers of material, one of which is inklike, that produces the visible marks on a substrate. Used on formed font impact, dot matrix, thermal transfer, and hot stamp printers. Also called a ribbon.
A character set of a given type size and style.
Programs running in the foreground can be directly controlled (with the keyboard) by the operator. Several background programs may be running simultaneously, but only one foreground program can run at a time.
A printer control panel button that advances the media.
The geometric construction rules that define a particular bar code or symbol.
See First read rate.
An operating mode that sets the reader to properly decode Code 39 or Code 93 labels containing data that may include any of the 128 ASCII characters.
A data communication term pertaining to a simultaneous two-way independent transmission. See also half duplex.
A collection of ready-made code that can be used for specific programming tasks. The code can be implemented in an ERP program or called by external applications.
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Characteristic of the surface which causes it to reflect light at a given angle.
A type of address that is used by the host to locate two or more devices.
Bars that are at both ends and center of a UPC and EAN symbol, that provide reference points for scanning. Guard bars are similar in function to start and stop characters.
GS1 is an international not-for-profit association dedicated to the development and implementation of global standards and solutions to improve the efficiency and visibility of supply and demand chains globally and across multiple sectors.
Graphical user interface.
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A data communication term pertaining to an alternate, one direction at a time, transmission. See also full duplex.
A scanner held and operated by a human. The scanner is moved to the object to be scanned, instead of moving the object close to the scanner.
A communication event that signifies the completion of a data block transmission. The exchange signifies either an affirmative acknowledge (AFF) or a negative acknowledge (NEG). The handshake event is enabled by defining the AFF character to be other than NULL. Some computers use the characters XON and XOFF as handshaking characters.
Physical equipment, such as mechanical, magnetic, electrical, or electronic devices. Contrast with software or method of use.
The property of a material which inhibits the occurrence of physical or chemical changes caused by exposure to high temperatures.
Health Industry Business Communications Council – a trade association responsible for the symbology and label format used by the healthcare industry.
HIBC Health industry bar code standard. A modified version of Code 39 that has 43 characters, utilizes the Modulus 43 check character, and reserves some character combinations for special usage. high memory area (HMA) HMA is a 64K block of memory, starting 16 bytes below the 1024K mark, and is the first 64K of extended memory. Since HMA can only hold one item, the first program that requests HMA uses it, regardless of the size of the program. home
This bar code type has narrow spaces and bars with an “X” dimension that is less than 7.5 mils.
Horizontal Bar Code
A bar code or symbol presented in such a manner that its overall length dimension is parallel to the horizon. The bars are presented in an array that looks like a picket fence.
An application running remotely on a host.
1. A PC or other computer connected to device.
2. If several computers are connected together on a network, the controlling computer is the host. A host can be a desktop, laptop, or notebook PC.
The ability to withstand stress, as in holding rigid label materials on smaller diameter cylindrical objects or in holding weight.
Horizontal Bar Code
The interpretation of bar code data, often printed immediately below the bar code in a readable format to humans.
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Jumper pin. A prong used as a jumper contact to PCBs or cards. See also jumper.
A short length of conductor used to make a connection between two points or terminals in a circuit or to provide a path around a break in a circuit.
A box used for connecting height sensor cables to the imaging processor.
|key mark/trigger A code bit that tells the scanner when the code is in position to be read.
The keycode representing the key pressed that is sent by the keyboard to the workstation. The reader has a table of ASCII characters that correspond to the keys on the keyboard. When an ASCII character is scanned, the reader transmits the keycode to the workstation.
A detachable connection that is restricted in how it is positioned on a pin.
An area of memory that saves a limited number of operator keystrokes.
A feature that makes the terminal or reader produce an audible click every time you press a key. This feature can be enabled or disabled with the Keypad Clicker configuration command.
The part of the media on which data is printed.
The design of a bar code label; the arrangement of the text, lines and bar codes on a label.
The space between labels on die-cut label stock.
A method of bar code printing in which the bars in the bar code are printed one at a time, in a series. The bar code appears along the length of the label. Used to be referred to as "picket."
Local area network. A network that is within a small radius, such as an office building. Compare to WAN. See also Ethernet, peer-to-peer network, and Token Ring.
Light amplification by the stimulated emission of radiation. A laser is a coherent, monochromatic light source produced by directing a light beam repeatedly through an active material so that it becomes amplified, and then directing the beam into a narrow cone of divergence. The active material converts energy into laser light, a pumping source provides power or energy, and separate optics direct the beam through the active material and then into a narrow cone of divergence.
A semiconductor laser commonly used in bar code scanners.
An optical bar code reading device that uses a low energy laser light beam to examine a spatial pattern, one part after another. It then generates analog or digital signals corresponding to the pattern. Laser scanners are often used in mark sensing, pattern recognition, character recognition, and bar code recognition. The laser scanner converts bar code symbols to electrical signals for input to a bar code reader decoder for processing and subsequent output through a data communications interface.
Denotes the ideal range of media/substrate thickness designed to promote optimum print quality and printer performance.
Label, Pressure Sensitive
A pressure-sensitive label product is a die-cut part that has been converted through the production equipment using the type of pressure-sensitive material that has a protective backing. The end product is produced in the form of rolls, sheets, fanfold, or by other techniques that produce like products which have been slit or cut from the converted roll.
A pressure-sensitive label whose face material, adhesive, and protective coatings transmit light so that objects can be seen through it.
A bar code symbol positioned vertically with horizontal bars and spaces.
To apply one layer of material over another.
The laser printer works much like a photocopier, projecting controlled streams of ions onto the surface of a print drum resulting in a charged image. The charged image then selectively attracts toner particles, transferring the image onto the paper substrate (media) by means of pressure. The pressure from the printhead and drum then fuse the image to the paper, creating the image.thermal transfer!
An optical bar code reading device using a low-energy laser light beam as its source of illumination.
Light emitting diode. A semiconductor that produces light at a wavelength determined by its chemical composition. This light source is often used in light pens.
Existing systems and technology that an organization has a considerable investment in and that might be entrenched in the organization. Some legacy systems have been in place for many years; some are considered old or inadequate technology; many are host-based with terminal emulation. Customers might try to replace or update legacy systems.
A parameter in the configuration that determines which lengths of a specified symbology can be scanned and decoded.
Level Trigger mode
The laser turns on when you pull the trigger and stays on until you release the trigger. See also Edge Trigger mode.
A scanner trigger configuration that makes the laser turn on after you activate the scanner and stay on until you release the Scan button or the trigger on a cabled scanner. Contrast with edge triggering.
A collection of programs and packages that are made available for common use within some environment; individual items need not be related. A typical library might contain compilers, utility programs, packages for mathematical operations, etc. Usually it is only necessary to reference the library program to cause it to be automatically incorporated in a user's program. (Dictionary of Computing)
In a bar code system, a handheld scanning wand that is used as a contact bar code reader. See wand scanner.
A link station exists at the end point of a logical connection. It can send to and receive data from other link stations.
A drop-down list of all the existing values for a field. A list box is usually attached to an input field in a dialog box so the application user can enter a value by selecting from a list.
lithium backup battery
The reader contains a lithium backup battery that is designed to back up the RAM and clock while you remove a discharged NiCad battery pack and insert a charged battery pack. The lithium battery will provide backup battery power for 3 to 4 years if you correctly manage power on the reader.
lithium-ion battery pack
Provides the main power source to operate the terminal. The lithium-ion battery pack is rechargeable and charges the backup battery when required.
A hand-held pen-like contact reader which the user must sweep across the bar code symbol in order to read the code. Also referred to as a wand.
Linear Bar Code / Symbology
A complete bar code message is expressed in a single line of bars—also commonly referred to as a 1-Dimensional bar code.
The component of a label used to protect the adhesive and to keep it from sticking to objects before the label is used. It readily separates from the label immediately before the label is applied to the substrate. Also referred to as release liner, backing paper, or release paper.
Indicates the same computer as the reference point.
See device address.
If DCM and the application program software are installed on the same computer, the computer is called a local computer or host (also server host).
local editing error
An error that occurs when a user performs an operation in a field that is not supported by the field's properties or definition. No data is sent when a local editing error occurs. For example, a local editing error occurs when a user enters characters in a numeric-only field. 4
A logically distinct portion of memory or a storage device that functions as though it were a physically separate unit.
The tracking and movement of raw materials to finished products and consumption throughout the supply chain.
A Department of Defense (DoD) project on LOGistics applications of Marking and Reading Symbols resulted in the production of a new standard (MIL-STD-1189A) that led to the development of Code 39 as the established bar code symbology to be used by all DoD vendors.
This bar code type has bars and spaces that are wide and far apart with an “X” dimension greater than 20 mils. This type of bar code is used for scanning bar codes from further distances.
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The menu from which all commands are available.
manufacturer's identification number
In the UPC systems, the four- or five-digit number assigned to a manufacturer by by the GS1 Council, Inc. This number appears as the left half of the UPC number.
The distance between the edge of a label and where the printing starts on that label. The margin is also called the quiet zone. See also top-of-form.
A general term used for printed material that can be directly transferred to a data processing system.
In the UPC code, the 6-digit number applied by the UCC to uniquely identify a manufacturer or company selling products under its own name. Also, the first 6 digits of the 12-digit UPC.
Appear as a checker board. They are most likely square in shape, and contain some form of “finder pattern” which distinguishes them from other symbols. The finder pattern provides a decoding reference for scanners.
An example of a company which uses the Maxicode bar code is United Parcel Service (UPS). The next time you receive a package from UPS, look for a very small square with a pattern of dots and a small bulls eye in the center. UPS uses these bar codes as a way to sort their packages for a specific destination.
The label stock on which the printer prints labels. Media can be made of plain paper, polyester, thermally reactive paper, or other materials with adhesive backing.
See PC card.
A list of commands accessible through the control panel on the printer. Menus contain submenus and selections of printer features.
Manufacturing execution systems. Systems that use network computing to automate production control and process. By downloading "recipes" and work schedules and uploading production results, MESs bridge the gap between business and plant-floor or process-control systems.
1. A unit of information that may be composed of one or more data fields.
2. The data portion of a transaction.
A string of characters followed by a delimiter that identifies a transaction as being of a specified type. It could also be referred to as a transaction identifier.
(1) The term which refers to the label, tag, and/or ticket and its respective ribbon combination.
(2) The surface on which a bar code symbol is printed. Also, interchangeably, referred to as substrate.
Media Roll Capacity
Refers to the maximum/minimum media roll diameter that a thermal printer can accommodate, for example 5.0” O.D. (Outer Diameter) and 1.0” I.D. (Inner Diameter).
The software interface or link that enables data to pass from the source to a client. For example, middleware enables Intermec terminals to interface with ERP applications.
A condition that occurs when the data output of a reader does not agree with the encoded data presented.
The narrowest nominal width unit of measure in a bar code.
Short for modulator/demodulator. A communications device that converts one form of a signal to another that is suitable for transmission over communication circuits, typically from digital to analog and then from analog to digital.
A cable device connector similar to a telephone jack connector.
The narrowest nominal bar or space in a bar code. Wider bars and spaces are often specified as multiples of one module.
Modulus 43 check character
Check character derivation method for Code 39.
The narrowest nominal width unit of measure in a bar code symbol.
Moving Beam Bar Code Reader
A scanning device where scanning motion is achieved by mechanically or electronically moving the optical geometry.
Materials requirements planning. MRP and MRP II are phases in developing computerized methods to plan the use of company resources, such as raw materials, vendors, production equipment, and processes.
The process of switching from one operation to another quickly. This results in the appearance that several programs are running at the same time.
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The ratio between the widths of wide elements and narrow elements in a two-width symbology.
A unit of measure used to define the wavelength of light. Equal to 10-9 meters.
Network addressable unit. A network address that allows a device to communicate with IBM hosts in a 3270 network.
Negative acknowledgment character. Indicates a negative acknowledgment to a solicitation event or a data transmission event.
net data density
In a linear bar code symbol, the number of characters in the symbol divided by the overall symbol length, measured from the leading edge of the start code to the trailing edge of the stop code.
1. Network communications process.
A collection of devices that can store and manipulate electronic data, interconnected in such a way that their users can store, retrieve, and share information with each other.
The person who is responsible for the installation, management, and control of a network.
A number used by a device during channel search to locate the controller's RFNC address.
network interface card
NIC. An adapter card that is installed in the controller that allows it to connect to a network (for example, Ethernet, Token Ring, Twinaxial). The card contains both the hardware to accommodate the cables and the software to use the network's protocols. The NIC is also called a network adapter card.
An end point in a network to which or from which data can be routed. Usually this is a workstation or host.
NiCad backup battery
The terminal contains a rechargeable NiCad backup battery that is designed to back up all memory and the real-time clock while you change the lithium-ion main battery pack. The NiCad battery will provide backup battery power for a maximum of 1 month if a fully-charged main battery pack is installed, or for a maximum of 3 days if a main battery pack is not installed.
NiCad battery pack
Provides the main power source to operate the reader. The battery pack contains rechargeable nickel-cadmium (NiCad) battery cells.
The exact (or ideal) intended value for a specified parameter. Tolerances are specified as positive and negative deviations from this value.
In a bar code system, the absence of data output after an attempted scan due to no code, defective code, scanner failure, or operator error.
Refers to memory that is saved when power is lost or turned off. See also volatile.
Novell user name
Parameter that identifies the user to the Novell software running on a remote host.
The National Institute of Electrical & Electronics Engineers – a trade association.
The exact or ideal intended value for a specified parameter. Tolerances are specified as positive or negative values from this specified value.
Bar code readers which do not require physical contact with the printed symbol.
Label, tag, or ticket which contains either a gap, notch, or hole between each label.
The absence of data at the scanner output after an attempted scan due to no code, defective code, scanner failure, or operator error.
Null Modem Connector
A device which connects to the serial output of a print cable and switches pins 2 and 3, transmitted data signal, and received data signal.
null modem cable
A cable that connects two computers and allows transmission of data between them without requiring a modem.
A character set that includes only numbers.
A set of keys on the reader that allows you to move the cursor around the screen and to type numbers and mathematical symbols. The reader's number pad is designed to work like the number pad on a regular PC keyboard.
A character set that includes only numbers
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Open Applications Group. A non-profit, vendor-focused consortium formed by leading enterprise software vendors. Their purpose is to create more open application inte re that automates the direct business functions occurring in an enterprise.
Open applications integration. An OAG term for the process of integrating the software.
Optical character recognition. The machine identification of printed characters through use of light-sensitive devices.
An abbreviation commonly applied to the character set contained in ANSI Standard X3.17-1981. A stylized font choice used for traditional OCR printing.
The character set contained in ANSI Standard X3.17-1981. A stylized font for traditional OCR printing.
The character set contained in ANSI Standard X3.49-1975. A stylized font for traditional OCR printing.
A font that is recognized by optical character recognition.
Open database connectivity. Microsoft's strategy for open database interface. Part of the Windows Open Services Architecture (WOSA), ODBC makes it possible to access both relational and non-relational database management systems (DBMS) in a heterogeneous PC environment with minicomputers linked to a mainframe. Defined by the SQL Group, a standards group made up of database vendors.
The European equivalent of AIAG. See AIAG for further details.
The state in which the printer is not able to carry out two-way communication with the host.
Object linking and embedding. A technology that allows object-based components to be transferred between various machines and applications.
A scanner mode that requires you to activate the scanner each time you want to scan a bar code. Once you scan a bar code, the scanner turns off.
1. The state in which the printer is able to carry out two-way communication with the host.
2. An operation in which peripheral devices are connected directly to the processing unit.
Bar codes which can be read in any orientation in relation to the scanner.
A term used to describe when labels are printed immediately when the customer needs them and are ready for use, versus being sent off-site for printing.
One-Dimensional Bar Code
A complete bar code message is expressed in a single line of bars. Also commonly referred to as a linear barcode.
Operating Temperature opacity The optical property of a substrate material that quantifies the show-through from the back side or the next sheet. The ratio of the reflectance with a black backing to the reflectance with a white backing. Ink opacity is the property of an ink that prevents the substrate from showing through.
To keep two or more parts electrically separate or disconnected. See also short circuit.
Generally connotes hardware and software combined; differs from an operating system, which refers to software only.
Refers to the code that operates a computer by managing its file systems, handling user input and output, and running programs. DOS, Windows, and UNIX are all operating systems.
operator information area
OIA. A line on a 3270 or 5250 emulator screen that contains status information (for example, input inhibited, keylock, system available) for a terminal session.
optical serial port
The reader's COM1 is an optical serial port. You can communicate through COM1 using a communications dock, optical link adapter, or another reader if you align the two readers' receive and transmit signals on their optical serial ports.
The alignment of a bar code symbol with respect to horizontal. Two possible orientations are horizontal and vertical bars and spaces (picket fence formation), and vertical with horizontal bars and stripes (ladder formation).
The fixed number of characters required for start, stop, and checking in a given bar code symbol—a symbol requiring a start and stop character and two check characters contains four characters of overhead. To encode three characters with the overhead listed, seven characters are required to print.
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packet The unit of information by which the network communicates. A single network message with its associated header, addressing information, data, and optional trailer. A packet can also be called a frame or datagram.
A communication scheme in which the bits of a byte are transferred simultaneously over a multistrand cable.
1. The operating limits of a device, such as a printer. Also, the variable information sent with a command.
2. In programming, a value assigned to a variable either at the beginning of an operation or before an expression is evaluated by a program.
A system for encoding characters with odd or even bar code patterns. Parity provides a self-checking feature in bar codes and other data transmission techniques. Even parity characters have an odd number of binary ones in their structure. For the purposes of data processing and data communications, parity does not relate to whether the original character is odd or even, but how an individual character is made odd or even with the addition of one more bit (1-0).
A parity bit is added to the binary array to make the sum of all of the bits always odd or always even for a fundamental check.
A parity bit is added to a binary array to make the sum of all of the bits always odd or always even for a fundamental check.
A link between data processing devices on which the data moves over multiple wires and more quickly than serial interface. Imagine transmitting all 8 letters in a word at the same time over each wire. In parallel interface, the 8 bits (a byte) are received and then processed simultaneously. A common parallel interface option is Centronics® (36 pin) parallel.
An optional character which may be included in the bar code message to minimize the misreading of the message.
Printed circuit board. A flat board whose front contains slots for integrated circuit chips and connections for a variety of electronic components, and whose back is printed with electrically conductive pathways between the components.
A PC card is similar to a floppy disk. You can use Type I or II memory PC cards and Type II expansion PC cards. Memory cards provide additional disk storage space, not more executable conventional memory. Expansion cards (also called I/O cards) allow you to connect the reader to I/O devices. PC cards were previously called PCMCIA cards.
Personal Computer Memory Card International Association. This group of manufacturers has defined a set of hardware and software standards for memory and expansion PC cards that are available for personal computers.
Print contrast signal. A measurement of the ratio of the reflectivities between the bars and spaces of a symbol, commonly expressed in percent. PCS is calculated as: RL : RD x 100 percent where RL = reflectivity of the light elements and RD = reflectivity of the dark elements
A two-dimensional stacked symbology. Each row in the symbol includes start/stop characters, row identifiers, and symbol characters, which consist of four bars and four spaces each and contain the actual data. PDF 417 provides an extensive error detection and correction option that can recover up to 510 characters lost due to a damaged label or to an error in scanning.
A type of LAN whose workstations are capable of being both clients and servers.
A peripheral is a device connected to a computer; for example, a terminal or printer.
A measure of an adhesive’s ultimate holding power or bond strength. A permanent adhesive will develop a bond that makes label removal difficult or impossible without distorting the facestock.
An adhesive characterized by relatively high ultimate adhesion, but which can be removed. The degree of force used overcomes its bonding ability.
physical RAM drive
See RAM drive.
A method of bar code printing in which all the bars are printed at once, in parallel. The bar code appears across the width of the label. Used to be referred to as "drag."
1. The number of characters printed in one horizontal inch determined by the increment by which the printer platen moves.
2. Rotation of a bar code symbol about an axis parallel to the direction of the bars. pixel One spot in a rectilinear grid of thousands of such spots that are individually "painted" to form an image produced on the screen by a computer or on paper by a printer. A pixel is the smallest element that display software can manipulate in creating letters, numbers, or graphics.
Picket Fence Orientation
A bar code symbol positioned horizontally with vertical bars and spaces.
A pressure-sensitive label which allows for dual usage. The construction consists of facestock, adhesive, and liner.
Refers to the rotation of a bar code symbol about an axis parallel to the direction of the bars.
A bar code symbology that is fixed length, continuous, and not self-checking. It is used extensively in libraries. The character set is 0 - 9 plus six additional symbols. This symbology includes a start character, data characters, an eight-bit cyclic check digit, a termination bar, and usually a reverse start character. Similar to MSI code.
A unit of measurement for font height; 72 points equals 1 inch as measured from slightly above the top of the uppercase letters to slightly below the bottom of the lowercase descenders.
Communications protocol typically used to connect the reader directly to a computer or terminal. Data sent by the reader is followed by a carriage return and line feed (CR LF). XON/XOFF is supported. Point-to-Point protocol characters cannot be modified; however, the transmission parameters, such as parity and data bits, can be modified.
Point of sale.
Power-on self test. This test runs when you boot the terminal. The test ensures that the terminal's hardware and peripherals are operational.
A field of data that is sent after the data in a message. It is typically used to tag transactions from the bar code reader for rapid processing by the host, and it expands the data field (record) length. See also preamble.
Software and procedures that extend the life of a terminal or reader's main battery pack and backup battery.
Point of Sale (POS)
Refers to bar code related retail applications occurring at the point of sale.
A strong film having good resistance to moisture, solvents, oils, and many other chemicals. Usually transparent, although available with metalized finish. Often used in the creation of Zebra media.
A tough, sturdy plastic film having very good, low temperature characteristics. Often used in the creation of Zebra media.
Similar to polyethylene but stronger, with a higher temperature resistance. Often used in the creation of Zebra media.
A height modulated, numeric symbology developed by the U.S. Postal Service. This linear symbology that uses 5 bars and 4 spaces to encode each digit is unique in that the bars are of different heights to accommodate the fast printing process required by the post office as well as its resistance to smearing.
A symbol that is printed in advance of application either on a label or on the article to be identified.
Pressure Sensitive Label
A pressure sensitive label product is a die-cut part that has been converted through the production equipment using the type of pressure sensitive material that has a protective backing. The end product is produced in the form of rolls, sheets, fanfold, or by other techniques that produce like products which have been slit or cut from the converted roll.
Refers to the minimum and maximum label length a printer can print with standard or added memory capacity.
Denotes the print technology used to print a label – commonly direct thermal or thermal transfer variety.
The measure of compliance of a bar code symbol to the requirements of dimensional tolerance, edge roughness, spots, voids, reflectance, PCS, quiet zone, and encodation.
The speed at which the label moves through the printhead, measured in inches per second (ips).
Predefined data that is automatically appended to the beginning of transmitted data. When preamble is enabled, you must enter a valid Preamble A or B before the reader will send data to the computer. See also postamble.
A symbol that is printed before use, either on a label or on the article to be identified.
The physical space being displayed by the terminal emulator session.
The measure of how a bar code symbol adheres to the requirements of dimensional tolerance, edge roughness, spots, voids, reflectance, PCS, quiet zone, and encoding.
Measured in inches per second (IPS), the rate at which media travels past the printhead.
A device controlled by a computer that makes images appear on media. The images can be formed by heat transfer (thermal) or by striking an image on a wheel (impact.)
The mechanism inside the printer that prints.
The parts of the printhead that print by placing a mark on the label when heated. It is switchen on and off separately in order to react with the media or thermal transfer ribbon to create a mark on the label.
The range over which the resistance of the wires that carry energy to the printhead elements can vary before sending a warning. The wires are tested with each printhead test.
A test that takes place each time the printer is turned on, or receives a specific command from the host. This test makes sure the resistance of the wires that carry energy to the printhead elements are within the acceptable range, which ensures the temperature of the elements is within the acceptable temperature range.
Programmable read only memory. A memory chip that can be programmed once, but cannot be reprogrammed.
On a display device, a display field in which a user cannot enter, modify, or erase data. See also unprotected field.
Denotes the printhead width and the corresponding maximum label width on which a thermal printer can optimally print.
In the UPC code, the 5-digit number assigned by a manufacturer to every consumer unit in its product catalog. The Product ID is different for every standard package (consumer unit) of the same product.
One of two programs you can use to change the contents of drive C. PutImage places an image file created with MkImage on the reader. You can run PutImage only on the reader.gration by establishing and publishing standards, such as the business object document, for integration of business objects across an enterprise.
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A two-dimensional bar code developed for use in Japan that permits the encoding of binary, Kanji, JIS, and alphanumeric information.
Applications that use automatic identification to make sure the right material is in stock so it can be delivered for the right cost to the right user at the right time.
Bar code message overhead, which is an area to the left and to the right of the bar code symbol and is free of printing. This area provides the scanning device time to adjust to the measurements of each bar code in the message.
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A design that supports systems based on 400 MHz UHF< 900 MHz spread spectrum, 2.4 GHz OpenAir, IEEE 802.11 Frequency Hopping, IEEE 802.11 Direct Sequence, and future wireless radio technologies.
Random access memory. Memory that can be written into, or read, by locating any data address.
A disk drive that exists only in extended memory in your terminal or reader. You create, read, write, and delete files on a RAM drive the same way you can on a hard disk drive. RAM drives are faster than hard disk drives because the contents of a RAM drive are, by definition, always resident in RAM. The contents are destroyed when you cold boot the device.
An output mode that is selected for RS-232 and RS-422 interfaces. This mode does not use any flow control during communication.
Random Access Memory - A machine's main working memory. Program instructions and data are stored here. Each location in memory has a unique address, so the computer can access the information in any location at any time it's required (i.e. “randomly”). RAM can be erased, written to, read from, and rewritten. It is erased when a computing device is turned off.
Ratio of the number of successful reads on the first attempt to the number of attempts.
An input device that reads bar codes, converting the input data to electronic data. Typically consists of a scanner, a decoder, and a data communications interface.
ready The state in which the printer is able to print; the normal operating state of the printer.
Pin 11 of the rear panel connector. Indicates the printer is ready or not ready.
The immediate availability of data to an information system as a transaction or event occurs.
The ratio of the amount of light of a specified wavelength or series of wavelengths reflected from a test surface to the amount of light reflected from a barium oxide or magnesium oxide standard under similar illumination conditions.
In screen mapping, a particular area on a screen that can be used to display messages and error conditions. Also referred to as the significant region.
When DCM and application programs are installed on physically different computers, one is remote to the other. It is usually the application program that is referred to as remote.
Variation from label to label, of the position of what is printed onto the label as measured from the edges of the label.
Release Liner (Backing)
The portion of the pressure sensitive label which supports and holds the facestock and adhesive until application to the intended surface is needed.
An adhesive characterized by relatively high cohesion strength and low ultimate adhesion. It can be removed easily from most substrate surfaces. Some adhesive transfer could take place, depending on the affinity of the adhesive to the surface.
Adhesive left on a substrate when a decal is removed.
The narrowest element dimension that can be distinguished by a particular reading device or printed with a particular device or method. Generally the higher the resolution the better the resultant print quality. Measured in dots per inch (dpi).
Radio frequency. A frequency at which coherent electromagnetic radiation of energy is useful for communications purposes.
RF data collection system
Radio frequency data collection system in which the individual components communicate with each other by radio signals. Abbreviated as RFDC system.
An optional device for the printer that disengages the thermal transfer ribbon while labels are being fed forward, or any other time printing does not take place.
Movement of a wireless node between two microcells. Roaming usually occurs in infrastructure networks built around multiple access points.
Read only memory. Usually a small memory that contains often-used instructions, such as microprograms or system software. ROM is programmed during memory fabrication and cannot be reprogrammed.
A read-only memory drive. Drives C and D are ROM drives implemented in flash memory on the reader.
A software and hardware connection between two or more networks that permits traffic to be routed from one network to another on the basis of the intended destinations of that traffic.
Assigning a path for message or file delivery.
Widely recognized protocol standard for serial binary data interchange. The standard covers the physical, electrical, and functional characteristics of the interface. RS-232 is the standard American format for serial data transmission by cable (that is, from a computer terminal to a modem). RS-232 transmission uses a distinctive 25-pin connector, although in most cases not all of the conductors are used. See serial.
Standard for the voltage and impedance levels for serial data transmission on balanced lines. Similar to RS-232, but handles larger distances and faster communication.
Standard for allowing multiple devices to share a common set of serial data communication lines. The signaling is very similar to RS-422. The maximum number of devices allowed is 32.
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Comparing data with known information (patterns, ranges, check digits) to verify that the data is correct.
An ASCII file that has one entry per line. A validation file is used to ensure that the information entered in the input fields of a screen mapping screen are correct. The file is read sequentially and the last line in the ASCII file must be.
variable data field
Bar code and text fields that change from one label to the next.
A type of symbology in which the number of characters per symbol is not restricted. It is the opposite of fixed length.
variable length field
A data field or data element that may vary within a prescribed minimum and maximum.
Variable Length Code
A code whose number of encoded characters can be within a range, as opposed to a code with a fixed number of encoded characters.
A device that makes measurements of the bars, spaces, quiet zones, and optical characteristics of a symbol to determine if the symbol meets the requirements of a specification or standard.
Standard 12-digit UPC symbol.
Special 6-digit shortened UPC code that requires less space and uses zero suppression.
vertical bar code
A code pattern oriented so that the axis of the symbol is perpendicular to the horizon.
Vertical Bar Code
A code pattern presented in such an orientation that the axis of the symbol from start to stop is perpendicular to the horizon. The individual bars are in an array that appears as rungs of a ladder.
Vehicle mount unit. A device that is designed to be mounted on a vehicle.
The absence of ink in a printed bar.
Refers to memory that is not saved when power is lost or turned off. See also nonvolatile.
The undesirable absence of ink in a printed bar.
VT/ANSI terminal emulation
A straight-through terminal emulation that causes Intermec downline devices running terminal emulation to emulate a VT100, VT220, and VT320, or ANSI terminal.
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A handheld scanning device used as a contact bar code or OCR reader.
Wide area network, which is distributed over a large area and involves routing nodes. Compare to LAN.
See wand scanner.
One of two ways to boot the reader; compare to cold boot. A warm boot performs the power-on self test (POST) to ensure that the hardware and peripherals are operational, runs CONFIG.SYS and AUTOEXEC.BAT, and displays the DOS prompt. The contents of both conventional memory and the physical RAM drive (drive E) remain intact. You may warm boot the reader to execute startup files, such as AUTOEXEC.BAT, that have changed. You may also warm boot to start Interlnk.
wide to narrow ratio
The comparison of the widest bar in a bar code symbol to the narrowest bar. Expressed as a ratio such as 2:1 or 2.5:1.
Wireless local area network. A flexible data communication system implemented as an extension to, or alternative for, a wired LAN within a building or campus. Using electromagnetic waves, a WLAN transmits and receives data through the air, minimizing the need for wired connections. A WLAN combines data connectivity with user mobility, which enables mobile LANs through simplified configuration.
Warehouse management systems. Software that integrates mechanical and human activities with an information system to effectively manage warehouse business processes and direct warehouse activities. These systems automate receiving, put away, picking, and shipping in warehouses and can prompt workers to do inventory cycle counts. Most support radio-frequency communications, allowing real-time data transfer between the system and warehouse personnel.
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The “X”-dimension is the narrowest bar or space in the bar code. This bar or space is measured in millimeters (mil=1/1000 of an inch). The “X”-dimension defines the density of a linear symbology. Depending on what the “X”-dimension of a bar code is, the bar code will be called either high density or low density.
A type of software flow control for communication between digital devices. It stops the host from sending data when the device buffer fills up (XOFF) and starts it again when the buffer empties (XON).
No terms beginning with this letter are listed in this glossary
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Zebra Programming Language is the universal language/code of all Zebra bar code printers. ZPL is an ASCII based format that enables label generation to occur by way of an instructional blueprint defining label length, field origin, field data, and other related information. ZPL enables labels with any combination of text, barcode, or graphics to be created.
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