Symbol MK2000 MicroKiosk Product Reference Manual page 180

MK2000 MicroKiosk Product Reference Guide
Kerberos
Key
LASER - Light
Amplification by
Stimulated
Emission of
Radiation
Laser Diode
LED Indicator
MAC Address (also
called IEEE
Address)
MIL
Misread
(Misdecode)
MU
Null Modem Cable
Nominal
Glossary-6
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.
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.
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.
®
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.
1 mil = 1 thousandth of an inch.
A condition which occurs when the data output of a reader or interface
controller does not agree with the data encoded within a bar code
symbol.
The MU (Mobile Unit) searches for APs with the same ESS_ID and
associates with an AP to establish communications.
An RS-232 cable used to connect two personal computers together in
close proximity for file transfer. It attaches to the serial ports of both
machines and simulates what would occur naturally if modems and
the phone system were used. It crosses the sending wire with the
receiving wire.
The exact (or ideal) intended value for a specified parameter.
Tolerances are specified as positive and negative deviations from this
value.