Symbol MC9000-G Product Reference Manual page 461

Kerberos
Key
LAN
laser scanner
LASER
Laser Diode
LCD
LED Indicator
Liquid Crystal Display (LCD)
Light Emitting Diode
MAC Address (also called IEEE Address)
Kerberos is a network authentication protocol. It is
designed to provide strong authentication for client/server
applications by using secret-key cryptography. A free
implementation of this protocol is available from the
Massachusetts Institute of Technology. Kerberos is
available in many commercial products as well.
A key is the specific code used by the algorithm to encrypt
or decrypt the data. Also see, Encryption and Decrypting.
Local area network. A radio network that supports data
communication within a local area, such as within a
warehouse of building.
A type of bar code reader that uses a beam of laser light.
Light Amplification by Stimulated Emission of
Radiation.The laser is an intense light source. Light from a
laser is all the same frequency, unlike the output of an
incandescent bulb. Laser light is typically coherent and has
a high energy density.
A gallium-arsenide semiconductor type of laser connected
to a power source to generate a laser beam. This laser type
is a compact source of coherent light.
See Liquid Crystal Display.
A semiconductor diode (LED - Light Emitting Diode) used as
an indicator, often in digital displays. The semiconductor
uses applied voltage to produce light of a certain frequency
determined by the semiconductor's particular chemical
composition.
A display that uses liquid crystal sealed between two glass
plates. The crystals are excited by precise electrical
charges, causing them to reflect light outside according to
their bias. They use little electricity and react relatively
quickly. They require external light to reflect their
information to the user.
See LED.
®
Spectrum24 devices, like other Ethernet devices, have
unique, hardware-encoded MAC (also called IEEE
addresses). MAC addresses determine the device sending
or receiving data. The MAC address is a 48-bit number
written as six hexadecimal bytes separated by colons.
GL-11
Glossary