Motorola 557621-001-b 用户手册

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

A type of connector used to connect coaxial cable to equipment 
such as the SB6120. 

An Internet Protocol address is an identifier for a computer or 
device on a TCP/IP network. Networks using the TCP/IP protocol 
route messages based on the destination IP address. Your 
Internet Service Provider assigns your cable 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 SB6120 SURFboard DOCSIS 
3.0 Cable Modem. You need to provide the MAC address to your 
Internet Service Provider. 

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

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 
protocols that provides standards and rules for communication 
between networks. 

A cable or fiber optic system that can transmit signals in both 
directions to and from the headend and the cable modem. 

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