Motorola MK1200, Product Reference Manual

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Glossary - 4 MK1200 MicroKiosk for CE .NET 4.2 Product Reference Guide
IEC (825) Class 1. This is the lowest power IEC laser classification. Conformity is ensured through a software
restriction of 120 seconds of laser operation within any 1000 second window and an
automatic laser shutdown if the scanner's oscillating mirror fails.
IEEE Address. See MAC Address .
Intercharacter Gap. The space between two adjacent bar code characters in a discrete code.
Interleaved Bar Code. A bar code in which characters are paired together, using bars to represent the first character
and the intervening spaces to represent the second.
Interleaved 2 of 5. A binary bar code symbology representing character pairs in groups of five bars and five
interleaved spaces. Interleaving provides for greater information density. The location of wide
elements (bar/spaces) within each group determines which characters are encoded. This
continuous code type uses no intercharacter spaces. Only numeric (0 to 9) and START/STOP
characters may be encoded.
IP. (Internet Protocol) The IP part of the TCP/IP communications protocol. IP implements the
network layer (layer 3) of the protocol, which contains a network address and is used to route
a message to a different network or subnetwork. IP accepts “packets” from the layer 4
transport protocol (TCP or UDP), adds its own header to it and delivers a “datagram” to the
layer 2 data link protocol. It may also break the packet into fragments to support the maximum
transmission unit (MTU) of the network.
IP Address. (Internet Protocol address) The address of a computer attached to an IP network. Every client
and server station must have a unique IP address. A 32-bit address used by a computer on
a IP network. Client workstations have either a permanent address or one that is dynamically
assigned to them each session. IP addresses are written as four sets of numbers separated
by periods; for example, 204.171.64.2.
Kerberos. 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.
Key. A key is the specific code used by the algorithm to encrypt or decrypt the data. Also see,
Encryption and Decrypting.
LASER - 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.
Laser Diode. 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.
LED Indicator. 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.
MAC Address
(also called
IEEE Address). 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.
MIL. 1 mil = 1 thousandth of an inch.