Ericsson HM200c/HM201c - Manual (Page 27)

PipeRider® Cable Modem User's Guide HM200c/HM201c
Glossary
10BaseT An unshielded, twisted pair cable with RJ-45 connectors
used with an Ethernet LAN. "10" indicates the speed (10
Mbps), "Base" refers to baseband technology, and "T"
means twisted pair cable.
Asymmetric
Scheme
A system in which one spectrum of signal frequencies is
assigned to signals moving in one direction and another
spectrum of signal frequencies is assigned to signals
moving in the opposite direction. Typically, higher
frequencies flow downstream and lower frequencies flow
upstream.
Bandwidth The range of frequencies that can be transmitted on a
communication channel without exceeding loss or
distortion limits. Bandwidth indicates the
information-carrying capacity of a channel.
Baseline Privacy
Interface
The baseline privacy interface (BPI) provides cable
modem users with data privacy across the cable network
by encrypting data traffic between user's cable modem
and CMTS.
Bridge An electronic device that provides a logical connection
path between two network segments.
Browser A computer program used for accessing the World Wide
Web.
Cable Modem
Termination
System (CMTS)
The Cable Modem Termination System (CMTS) is the
major component of the headend. It interfaces to the
cable network, the backbone data network, and several
support systems. The CMTS also controls the
configuration, registration, and media access of all the
cable modems under its control, and determines who
gets to transmit when, and for how long.
Cable Network The system of headend equipment and cables that
provides cable service (Internet and/or Television) to
individual homes and businesses.
CATV A cable television network system.
CMTS See Cable Modem Termination System
Coaxial Cable Coaxial cable ("coax") allows wide bandwidth
transmission over long distances. The coax cable is
composed of an inner wire surrounded by an outer
conductive shield.
Data Interface
Connection
The link that provides the communication channel
between two or more devices, allowing them to pass data
to one another.
Decryption The conversion of a coded (encrypted) signal to its
original form, by means of an algorithm.
Demodulation The process of recovering, at the receiver, an original
transmitted signal that has been modulated.