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Ericsson HM200c/HM201c User Manual

Page 29

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IP

See Internet Protocol

IP Address

A unique, 32-bit address assigned to every device in a

network. An IP address is composed of a network

address and a host address. Each network is assigned an

address by a government agency, and each company

administrator assigns an address to each host computer.

ISP

See Internet Service Provider

LED

See Light Emitting Diode

Light Emitting

Diode

A light emitting diode (LED) is a semiconductor device

that emits light when voltage is applied between its

terminals.

MAC

See Media Access Control

MAC Address

The physical address of the Media Access Control device.

Media Access

Control

Media Access Control (MAC) is the protocol governing

access to the network. The MAC device is located

between receive and transmit paths. Among its functions

are the controlling of ranging, the assignment of

frequencies, and the allocation of time slots.

Modem

A device that encodes (modulates) data from a computer

to a carrier wave for transmission across some type of

wire, and decodes (demodulates) data coming over the

wire to the computer.

Modulation

A controlled variation of any property of a carrier wave

for transferring data.

Network

Interface Card

A Network Interface Card (NIC) is a plug-in circuit board

installed in an expansion slot of the computer. The NIC

(also called an Ethernet card) takes parallel data from

the computer, converts it to serial data, packets it, and

sends it out over a 10BaseT cable.

NIC

See Network Interface Card

PipeLock®

A security feature of the PipeRider cable modem that

temporarily blocks communication between the computer

and the service provider.

PipeRider®

An Ericsson cable modem that allows high-speed access

to the Internet through a cable network rather than

through a telephone wire.

Protocol

A set of rules to be followed in order for the various parts

of a communication system to operate together.

Radio Frequency

Radio Frequency (RF) refers to a specific range of

frequencies in the electromagnetic spectrum. Signals in

this frequency range can be transmitted through the air

or through a wire.

RF

See Radio Frequency

Router

A system used to connect separate LANs into an internet,

and to route traffic between the constituent networks.

Server

A type of processor that provides specific services to

network users, such as managing file access and

managing the exit and entry of information to LAN users.

Service Provider

A company that connects networks to the Internet, thus

providing Internet service to customers.

TCP

See Transmission Control Protocol