Motorola MC9190-G Integrator Manual page 180

Glossary - 4 MC9190-G Integrator Guide
I
IEC. International Electrotechnical Commission. This international agency regulates laser safety by specifying various laser
operation classes based on power output during operation.
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.
Internet Protocol Address. See IP.
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.
K
Key. A key is the specific code used by the algorithm to encrypt or decrypt the data. Also see, Encryption and Decrypting.
L
laser scanner. A type of bar code reader that uses a beam of laser light.
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.
LEAP. (Lightweight Extensible Authentication Protocol) A mutual authentication method that uses a username and
password system.
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.