Accu-Sort AXIOM 400 Product Manual Download

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AXIOM™ 400 Product Manual

Glossary

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A3-AXIOM400-Glossary_R10.doc

Accu-Sort Systems, inc.

continuous trigger

This form of trigger requires no input signal. The reader is continuously
attempting to decode bar codes. When a reader is in “continuous trigger”,
there is no way of determining if there is a package present or a NO-READ

conveyor speed

The speed that the conveyor is moving measured in feet per minute.
Conveyor speed directly impacts the time that the code is in front of the
reader; therefore, it affects the number of reads that are possible.
Scanning systems require consistent conveyor speeds to assure accuracy.

CPI

Characters per inch. See density.

CR (Carriage Return)

An ASCII or EBCDIC control character that moves the cursor or print
mechanism to the left margin.

CRC (Cyclic Redundancy Check)

A CRC is generated by treating a message as a single, large binary number
and dividing it by a specific number and keeping the remainder, which
becomes the CRC.

CTS (Clear to Send)

The Modem interface signal that indicates to the DTE device to begin
transmission.

data verification

There are three data verification options available when defining the host
message via Axcess: None, BCC, and CRC. (See

Modify/ Communications

decode

The process of translating a bar code into data characters using a specific
set of rules for each symbology.

decoder

As part of a bar code reading system, the electronic package that receives
the signals from the reader, performs the algorithm to interpret the signals
into meaningful data and provides the interface to other devices.

decoder logic

The electronic package that receives signals from the scan head, interprets
the signals into useful data, and provides the interface to other devices.

default(s)

Original parameters as programmed by Accu-Sort at the factory. Axcess
can be used to review the default settings and modify them, when
necessary.

delimiter between codes

The separator used between multiple bar codes decoded and transmitted
to the host in the same message. The delimiter is set in Axcess. (See

Modify / Communications

depth of field (DOF)

The distance between the maximum and minimum plane in which a
symbol can be read. This range is from the specified optical throw to the
far reading distance.

density

The number of data characters that can be represented in a linear unit of
measure. Bar code density is often expressed in characters per inch (CPI).

diagnostics

Refers to the various features of the Axcess software that enable a trained
and qualified technician to monitor and troubleshoot the operation of an
Axiom reader.

discrete code

A bar code or symbol where the space between characters, intercharacter
gap, are not part of the code as with Code 39. See continuous code.

downloading

The process of sending configuration parameters, operating software or
related data from a central source to remote stations.

drop-down menu

A graphical user interface that allows the user to select from a list of
options that is displayed when a specific function has been selected. This
options list “drops down” from the selected function. A list of drop-down
menus can be found across the top of the Axcess Main Window.

DSR (Data Set Ready)

An RS232 modem interface control signal which indicates that the
terminal is ready for transmission.

DSR (Data Terminal Ready)

Modem interface signal which alerts the modem that the DTE device is
ready for transmission.

duplex transmission

See full duplex and half duplex.

EAN

European Article Number System. The international standard bar code for
retail food packages.

EDI (Electronic Data Interchange)

A method by which data is electronically transmitted from one point to
another.

EIA-232

Interface between data terminal equipment and data communication
equipment employing serial binary data interchange.

EIA-422

Electrical characteristics of balanced-voltage digital interface circuits.

EIA-485

The recommended standard of the Electronic Industry Association that
specifies the electrical characters of generators and receivers for use in
balanced digital multipoint systems.

element

Dimensionally the narrowest width in a character – bar or space.

element width

The thickness of an element measured from the edge closest to the symbol
start character to the trailing edge of the same element.

emitter/receiver pair

An emitter sends a light beam to a receiver that detects when the beam
from the emitter is interrupted. Typically used in applications where tape
or lamination on an object on the transport could mimic the reflector used
in a retroreflective pair. Can be used as a TRIGGER.

encoded area

The total linear dimension consisting of all the characters of a code
pattern, including start and stop characters and data.

ENQ (Enquiry)

A transmission control character used as a request for a response from a
remote station. (^E)