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.

IP address (Internet Protocol Address)

IP Address is the numeric address given to a network card which enables
other devices on a network to find it. For readability, this number is
displayed in “dotted-decimal” format (e.g.: 127.0.0.1) as opposed to the
binary equivalent (e.g.: 01111111000000000000000000000001).

jumper

A wire that connects a number of pins on one end of a cable only, such as
looping back Request to Send from Clear to Send pins 4 and 5.

ladder orientation

When the bar code’s bars are positioned horizontally on the product,
causing them to appear as a ladder. The ends of all bars will enter the scan
window first.

LAN

The acronym for local area network. A LAN system is usually confined to
the same building or a few nearby buildings, with all equipment linked by
wiring dedicated specifically to the LAN.

laser scanner

An optical bar code scanning device using a low energy laser light beam as
its source of illumination. A laser scanner or scan head sends the
information it collects to the decoder.

LED (Light Emitting Diode)

A semiconductor generally made from gallium arsenide, that can serve as
a visible or near infrared light source when voltage is applied continuously
or in pulses. LEDs have extremely long lifetimes when properly operated.

LF (Line Feed)

An ASCII control character that moves the cursor or print mechanism to
the next line. (^J)

linear bar codes

Also referred to as 1D or 1-dimensional symbologies. Examples: Code 39,
I2of5, UPC.

The abbreviation for milliampere(s).

match

A condition in which decoded data matches data in the match entry.

match entry

An output condition in which decoded data matches and the data in a
match entry configuration.

memory

A computer can contain several forms of memory, e.g., RAM, ROM, and
video memory. The term

memory

is generally used to define RAM. When a

computer has 8 MB of memory, it actually has 8 MB of RAM.

memory address

A specific location, usually expressed as a hexadecimal number, in the
computer’s RAM.

message

1) A meaningful combination of alphanumeric characters that establishes
the content and format of a report. 2) In a communication network, the
unit of exchange at the application layer.

message buffer

Storage register for the temporary storage of data that allows decoding to
continue while the host is retrieving data from the serial port.

message buffer warning

An output condition that occurs when the message buffer has used a
defined amount of the message buffer.

MHz

The abbreviation for megahertz.

microprocessor

The primary computational chip inside the computer, referred to as the
“brain”. The microprocessor contains an arithmetic processing unit and a
control unit. Software written for one microprocessor must usually be
revised to run on another microprocessor.

mil

One thousandth of an inch (0.001 inch). Bars and spaces of codes are
commonly referred to as being a certain number of mils wide.

misread

The scanner incorrectly decodes a bar code as it passes through the scan
zone.

Modulo check digit or character

A calculated character within a data field used for error detection. The
calculated character is determined by a modulus calculation on the sum or
the weighted sum of the data field contents.

mouse

A pointing device that controls the movement of the cursor on a screen.
Mouse-aware software allows the user to activate commands by clicking a
mouse button while pointing at objects displayed on the screen.

moving-beam

Rather than using a stationary laser beam and relying on product
movement for a single scan, a multi-facet mirror wheel and motor is used
to ‘move’ the beam across the code several times while in motion itself.

moving-beam bar code scanner

A device that dynamically searches for a bar code symbol by sweeping a
moving optical beam through a field of view called the scanning zone.
Automatic bar code reader that reads codes by sweeping a moving optical
beam through a field of view. Moving-beam scanners are usually mounted
in a fixed position and read codes as they pass by.

MTBF

The abbreviation for mean time between failures.

multidrop line

A single communications circuit that interconnects many stations, each of
which contains terminal devices.

See EIA-485.

NAK (Negative Acknowledgment)

A control character used to indicate that the previous transmission block
was in error and the receiver is ready to accept retransmissions.

Narrow Bar (NB)/Narrow Space (NS)

Smallest code element, bar or space, in the bar code symbol. Also known
as the X dimension.