ADS Technologies SBG1000 B

137 SBG1000 User Guide

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Configuration: Basic Gateway TCP/IP Wireless Print Server USB

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bandwidth The transmission capacity of a medium in terms of a range of frequencies. Greater bandw idth

indicates the ability to transmit more data over a given period of time.

Baseline

Privacy

An optional feature that encrypts data between the CMTS and the cable modem or ga teway.

Protection of service is provided by ensuring that a cable modem or gateway, uniquely identified by its

MAC address, can only obtain keys for services it is authorized to access.

baud The analog signaling rate. For complex modulation modes, the digital bit r ate is encoded in multiple

bits per baud, for example, 64 QAM encodes 6 bits per baud and 16 QAM encodes 4 bits per ba ud.

BCP Binary Communication Protocol

BER The bit error rate is the ratio of the number of erroneous bits or characters received from some fixed

number of bits transmitted.

binary A numbering system that uses two digits, 0 and 1.

bit rate The number of bits (digital 0s and 1s) transmitted per second in a communi cations channel. It is

usually measured in bits per second bps.

BPKM Baseline Protocol Key Management encrypts data flows betw een a cable modem or gateway and the

CMTS. The encryption occurs after the cable modem or gateway registers to en sure data privacy

across the RF network.

bps bits per second

bridge An OSI layer 2 networking device that connects two LANs using similar protoco ls. It filters frames

based on the MAC address to reduce the amount of traffic. A bridge can be placed betw een two

groups of hosts that communicate a lot together, but not so much with the hosts in the other group.

The bridge examines the destination of each packet to determine whether to transmit it to the other

side. See also switch.

broadband High bandwidth network technology that multiplexes multiple, inde pendent carriers to carry voice,

video, data, and other interactive services over a single cable. A communi cations medium that can

transmit a relatively large amount of data in a given time period. A frequently used synonym for cable

TV that can describe any technology capable of delivering multiple channels and services.

broadcast Simultaneous transmission to multiple network devices; a protoco l mechanism supporting group and

universal addressing. See also multicast and unicast.