From K to L
A code bit that tells the scanner when the code is in position to
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.
One of the keypads available on the reader. The large numeric keypad
has 34 keys and is available in English. The number keys are larger
to make it easier to enter a lot of numeric data. Compare to alphanumeric
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
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.
Local area transport protocol.
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
A parameter in the configuration that determines which lengths of
a specified symbology can be scanned and decoded.
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.
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.
Provides the main power source to operate the terminal. The lithium-ion
battery pack is rechargeable and charges the backup battery when
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
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
See imaging processor.
Logical COM4 is the communications port for RF communications in
a JANUS 2010 with an RF Back. This COM port is different from COM4,
which is the Type II PC card drive when it contains a modem card.
Accessing an RF network through logical COM4 does not conflict with
accessing a serial communications network through COM4.
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.
Longitudinal redundancy check character. This character is an error
checking character that is optionally appended to transmitted blocks
of data and optionally checked on received blocks of data. LRC provides
horizontal error checking of data blocks received and transmitted
by the controller. LRC performs an exclusive OR of the data bits,
excluding the SOM, but including the received or transmitted EOM
Link support layer. This layer serves as an intermediary between
ODI and the link driver that supplies an interface between the network
board and the rest of the operating system.
Logical unit. LUs define the name by which devices are known throughout
the SNA network. An LU is SNA software that accepts APPC verbs and
acts on those verbs. A single LU can provide services for multiple
transaction programs. Multiple LUs can be active in a node simultaneously.
Intermec uses LU type 6.2 that supports communication between a
host application and the Model 200 Controller terminal session manager.