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Glossary of Terms

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The Intermec glossary provides definitions of technical terms used to describe systems, devices, solutions and applications within the Automated Data Capture Industry.

ABC symbol
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.
access point
A LAN product that acts as a bridge between an Intermec 2.4 GHz RF network and an Ethernet network.
accumulate
An operating parameter setting that allows the reader to store scanned labels in a buffer until a transmit command is entered.
Accumulate mode
Operating mode in which the terminal or reader stores scanned information in the buffer until it receives a transmit command.
accuracy
The determination of whether an element width or intercharacter gap width (if applicable) differs from its nominal width by more than the printing tolerance.
ACK
Acknowledge character. A handshake character that indicates that a message was received.
acknowledgment delay
Specifies the maximum amount of time that may elapse before the controller determines that a device did not receive the message.
ADC
Automated data collection. Technologies that automate data collection at the source such as bar code, biometrics, machine vision, magnetic stripe, OCR (Optical Card Readers), voice recognition, smart cards, and RFID (Radio Frequency Identification).
ADDR
Used in Multi-Drop protocol. Each device must have a unique number (address) assigned.
address
Characters that are used by a device to locate another device in a network. See also group address.
Advanced Setup
The GUI that runs on the Model 200 Controller and allows you to configure the controller. See also Fast Setup.
AFF
Affirmative acknowledge character. This character enables or disables the handshake event, and also indicates an affirmative acknowledge to a message.
AID
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.
alignment
In an automatic identification system, the relative position and orientation of a scanner to the symbol.
alphanumeric keypad, TRAKKER Antares terminal
The alphanumeric keypad on the terminal has 56 keys to type alphabetic and numeric characters. Although the keypad is smaller than a desktop terminal keyboard, you use special keys on the terminal's keypad and press key combinations to access all the keys and functions. Compare to large numeric keypad.
alphanumeric
The character set that contains letters, numbers, and usually other characters such as punctuation marks.
alphanumeric keypad, JANUS reader
The alphanumeric keypad on the reader is an all-purpose keypad with 52 keys. Although the keypad is smaller than a regular PC keyboard, you use special keys on the reader's keypad and press key combinations to access all 102 keys that are available on a PC keyboard. The alphanumeric keypad is available in English, French, German, Italian, and Spanish.
ANSI
American National Standards Institute. A non-governmental organization responsible for developing voluntary manufacturing standards.
aperture
The opening in an optical system that establishes the field of view.
API
Application programming interface. A well-defined interface to routines that an application can use to request and perform system-level tasks.
APPC
Advanced program to program communications. APPC is an LU 6.2 protocol in an SNA network. APPC supports client/server and distributed computing between IBM mainframes, and midrange and personal workstations.
application
1. One or more programs that perform functions required by an end user. Compare with utility. 2. A program that DCM interfaces with through its channeling system. An application is a destination where messages are deposited, such as a shop floor management program. 3. A software program that makes calls to the operating system and manipulates data files allowing a user to perform a specific job.
application break bit
A flag in the reader that an application checks when you turn on the JANUS reader. If the bit is not set to 1, the application will resume running. If the bit is set to 1, the application will not resume. You press the application break sequence to set the application break bit.
application break sequence
A series of keys you press to stop an application from resuming after you turn the JANUS reader off and then on again. Usually you use these keys when an application is locked up and you do not want to cold boot the reader to clear the memory.
application channel file
A file used by DCM to store transactions destined for an application that DCM has determined to be nonactive. Also referred to as an application auxiliary file.
Application companion disk
One of the disks that Intermec ships with your JANUS reader. This disk contains applications such as Communications Manager and IRLXDESK.EXE. This disk also contains PC card drivers and utilities that control the reader's operation, prepare the reader to use the different types of PC cards, customize the reader to use the PC card software, and provide you with helpful tools.
ASCII
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.
aspect ratio
In a bar code symbol, the ratio of bar height to symbol length.
asynchronous
In a data communication system, an arrangement without an associated clock that ensures that every character is transmitted independently.
ATA flash PC card
A type of memory PC card that provides additional disk storage space, not more executable conventional memory, on a JANUS reader.
audio connector
The audio connector lets you attach a miniature-plug headphone or earphone into the JANUS 2010 so you can monitor the reader's audio signals in a noisy environment. The audio connector is located at the top of the reader near the wand/scanner connector. When you plug in a headphone or earphone into the audio connector, the reader's external beeper is silent.
audio signals
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.
audit trail
A means of tracking messages in DCM. When the audit process is on, all DevComm transactions sent to the message handler's channel are also written to the file DCMAUD.DAT. When the audit process is off, only failed and undeliverable transactions are written to the DCMAUD.DAT file.
autodiscrimination
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.
Auto-Loader
A DOS utility used to change the contents of drive C. You can also use it to configure the reader to operate in any language supported by DOS NLS (National Language Support). You run Auto-Loader on a host connected to the reader's COM1 port.
Automatic mode
A scanner mode that allows you to activate the scanner once and scan a series of bar codes. When you release the Scan button or trigger on a cabled scanner, the scanner turns off. To scan the same bar code more than once, you must release the button or trigger, or scan a different bar code before attempting a second scan.
automatic shutoff
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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