Motorola SURFboard SBV5322 Installationsanleitung PDF herunterladen (Seite 39)

30 — SBV5322 SURFboard Digital Voice Modem

Glossary

coaxial cable

(coax)

A type of wire consisting of a center wire surrounded by insulation and a grounded shield of

braided wire. The shield minimizes electrical and radio frequency interference.

DOCSIS The CableLabs Data-Over-Cable Service Interface Specification defines interface standards

for cable modems and supporting equipment.

download To copy a file from one computer to another. You can use the Internet to download files from

a server to your home PC. A DOCSIS digital voice modem downloads its configuration from

a server during start-up.

downstream In a network, downstream describes the direction of data received by your computer from

the Internet.

Ethernet The most widely used type of local area network (LAN). The most commonly installed

Ethernet networks are called 10Base-T. 10Base-T provides transmission speeds up to 10

megabits per second (Mbps), usually over twisted-pair wire. Fast Ethernet (100Base-T)

provides transmission speeds up to 100 Mbps.

Euro-DOCSIS The European version of the DOCSIS standard.

expansion slot An opening in a computer where a circuit board can be inserted to add new capabilities.

F-type

connector

A connector used to connect coaxial cable to equipment.

IP address An Internet Protocol address is an identifier for a computer or device on a TCP/IP network.

Networks using TCP/IP route messages based on the destination IP address. Your cable

provider assigns your digital voice modem an IP address to provide a continuous Internet

connection.

MAC address The Media Access Control Address uniquely identifies each device that can be connected to

an Ethernet network. It is permanently written to read-only memory (ROM) at the factory

and printed on the rear panel of your SURFboard Digital Voice Modem. You need to provide

the MAC address to your cable provider.

MHz Mega Hertz. A measure of frequency - millions of cycles per second. One MHz means one

million cycles per second.

PBX A private branch exchange is a private telephone network usually used within a business.

Users of the PBX share a certain number of outside lines for making telephone calls external

to the PBX.

PSTN The public switched telephone network is the traditional circuit-switched, voice-oriented

telephone network originally invented by Alexander Graham Bell. It is sometimes referred to

as plain old telephone service (POTS).

RJ-11 The most common type of connector for household phones.

RJ-45 The most common type of connector for Ethernet networks.

splitter A splitter is a device that divides the signal power from an input cable equally between two

or more signals, each carrying a selected frequency range.

TCP/IP Transmission Control Protocol/Internet Protocol is a set of standards and rules for

communication between networks.

upstream In a network, upstream describes the direction of data sent from your computer to the

Internet.

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