Accu-Sort AXIOM 400 Product Manual Download

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Glossary

AXIOM™ 400 Product Manual

Accu-Sort Systems, inc.

A3-AXIOM400-Glossary_R10.doc

bottom read

When the scanner is mounted under the conveyor to read codes on the
bottom of the boxes or on the front or back of the boxes. If used there is
not enough clearance for a standard front or back read.

BPS (Bits Per Second)

Unit of data transmission rate.

See baud rate.

bridge

An interface between links in a communication network that routes
messages from one link to another when a station on one link addresses a
message to a station on another link.

buffer

A temporary storage device used to compensate for a difference in data
rate and data flow between two devices (typically M).

bus

An internal pathway along which electronic signals travel between the
components of an electronic device.

button

A graphic user interface that allows users to select a given software
function. Instead of physically pressing a button, the user simply clicks on
the desired button to access a menu, tab screen, or function.

button menu

A graphic user interface that offers several buttons. The Axcess Main
Window Toolbar offers a menu of buttons that include Save, Retrieve,
Backup, Restore, and Default functions. Instead of physically pressing a
button, the user simply clicks on the desired button to access a menu, tab
screen, or function.

byte

A binary element string functioning as a unit, usually shorter than a
computer “word”. Eight-bit bytes are most common. Also called a
“character”.

CART, See Trigger

CDRH (Center for Devices and Radiological Health)

This organization (a service of the Food and Drug Administration) is
responsible for the safety regulations governing acceptable limitations on
electronic radiation from laser devices. Accu-Sort is in compliance with
the CDRH regulations.

character

A single group of bars and spaces in a code that represent an individual
number, letter, punctuation mark or other graphic element. Used as part of
the organization, control, or representation of data.

character self-checking

The feature that allows a bar code reader to determine if a scanned group
of elements is a valid symbol character. If a symbology is described as
character self-checking, a single printed defect (edge error) in any symbol
character does not produce a valid character.

character set

Those characters available for encodation in a particular automatic
identification technology.

check character

A character (usually at the end of the code) that is used to perform a
mathematical check to ensure the accuracy of a scan of the bar code.

Codabar

For details, see Symbologies

Code 128

For details, see Symbologies

Code 39

For details, see Symbologies

Code 93

For details, see Symbologies

code length

The length of the bar code measured from the start of the first bar to the
end of last bar.

code orientation

The relationship of the bar code with reference to the scan head’s reading
zone. Typical code orientations are Ladder and Picket Fence.

code placement

Variation in code placement affects the ability of a scanner to read a code.
The terms Tilt, Pitch, and Skew deal with the angular variations of code
placement in the X, Y and Z axes. Variations in code placement affect the
pulse width and therefore the decoding of the code. Pulse width is defined
as a change from the leading edge of a bar or space to the trailing edge of
a bar or space over time. Pulse width is also referred to as a transition. Tilt,
pitch, and skew impact the pulse width of the code.

Changes to this code presentation cause the bar codes to appear smaller
to the scanner which results in a smaller pulse width. Each of these
variation has a different effect on a scanner reading these codes and the
combination of the variations leads to more complicated effects.

code quality

The number of scans successfully decoded during a read cycle.

code set

The specific assignment of data characters to symbol characters.

communications protocol

The rules governing exchange of information between devices connected
together on the same communications line.

configuration

The arrangement and interconnection of hardware components within a
system, and the hardware (switch and jumper) and software selections
that determine the operating characteristics of the system.

configuration file

A set of attributes that belongs to and defines the operation of a single
physical device.

constant tach

Use for belt speed timing instead of using a tachometer. Axiom systems
can be setup to generate a belt speed automatically for applications where
belt speed does not vary more than 5%. This is generated when the
function is selected from the

Axcess Modify > Tracking window

continuous code

A bar code symbology where all spaces within the symbol are parts of the
characters (Interleaved 2 of 5). There is no interactive gap in a continuous
bar code symbology.