Motorola DS3478 K, L, M

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 “datagra m”

to the layer 2 data link protoco l. It may also break the packet into fr ag men ts to supp ort the ma xim um transmissio n unit

(MTU) of the network.

IP Address. (Internet Protocol address) The address of a computer attached to an IP network. Every clie nt an d serv er

station must have a uniq ue IP address. A 3 2-bit address used by a computer on a IP network. Cl ient workstations ha ve

either a perma nent address o r one that is dynamically assigned to th em each session. IP addresses ar e written as four

sets of numbers separated by periods; for example, 204.171.64.2.

IPX/SPX. Internet Package Exchange/Sequential Packet Exchange. A communications protocol for Novell. IPX is Novell’s

Layer 3 protocol, similar to XNS and IP, and used in NetWare networks. SPX is Novell's version of the Xerox SPP

protocol.

K

Key. A key is the specific code used by the algorithm to en crypt 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.

Laser Scanner. A type of bar code reader that uses a beam of laser light.

LCD. See Liquid Crystal Display.

LED Indicator. A semiconducto r 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.

Light Emitting Diode. See LED.

Liquid Crystal Display (LCD). A display that uses liquid crystal sealed between two glass plates. The crysta ls 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 exter nal light to reflect their information to the user.

MDN. Mobile Direct or y Num b er . Th e dir ec tor y lis tin g te lep ho n e nu m ber th at is dia l ed (gene r ally us ing POT S ) to re ac h a

mobile unit. The MDN is usually associated with a MIN in a cellular telephone -- in the US and Canada, the MDN and