Motorola SBV5222 用户手册

Installation

Troubleshooting

Glossary

   

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.

The CableLabs Data-Over-Cable Service Interface Specification defines interface standards for cable 
modems and supporting equipment.

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.

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

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.

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

A connector used to connect coaxial cable to equipment.

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.

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.

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

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. 

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).

The most common type of connector for household phones.

The most common type of connector for Ethernet networks. 

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. 

Transmission Control Protocol/Internet Protocol is a set of standards and rules for communication 
between networks.

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

An uninterruptible power supply provides a battery backup to enable voice service to continue for some 
time during a power outage.

Universal Serial Bus is a computer interface for add-on devices such as printers, scanners, and digital 
voice modems. When you connect your SURFboard Digital Voice Modem to the USB port, Windows 98 
Second Edition and later versions automatically recognize the digital voice modem.

Voice over Internet Protocol is a method to exchange voice, fax, and other information over the Internet. 
Voice and fax have traditionally been carried over traditional telephone lines using a dedicated circuit for 
each line. VoIP enables calls to travel as discrete data packets on shared lines.