Glossary-2
communication network A facility that provides a data transfer service among the equipment attached to
a network.
Customer Premise
Equipment (CPE)
Equipment at the end user premises. This equipment may be provided by the
end user or service provider.
DOCSIS
The Data-Over-Cable Service Interface Specifications.
downstream
The direction of data flow from a CMTS to a cable modem.
Dynamic Host
Configuration Protocol
(DHCP)
A protocol that allows dynamic assignment of IP addresses to other computers.
DHCP is also used to assign IP addresses to cable modems. This protocol can
also provide other parameters such as a TFTP server address and TFTP path
and filename.
encryption
A method of encoding data.
encryption key
A key that is used to encrypt data to deter unauthorized interception.
Ethernet
A networking standard running at speeds of 10 Mbps (10BaseT) or 100 Mbps
(100BaseT).
Ethernet address
The physical address of the Ethernet port. It is also known as a MAC address or
a NIC address.
Ethernet card
A card that resides in an expansion slot of a PC. It can be a built-in Ethernet
port or an Ethernet port with a 10BaseT adapter. The Ethernet card takes data
from the computer, converts it to serial data, puts it into a packet format, and
sends it over the 10BaseT or 100BaseT LAN.
The Ethernet card has a 48-bit address burned into the ROM. It is also referred
to as a Network Interface Card (NIC).
event
A message generated by a cable modem to inform an operator that something
has occurred.
F connector
Connector on a cable modem that connects it to the cable system.
File Transfer Protocol
(FTP)
A protocol that allows users to log into a remote system, identify themselves,
list remote directories, and copy files to and from the remote machine. FTP
understands a few basic file formats. It is more complex than Telnet in that it
maintains separate TCP connections for control and data transfer.
firewall
A method of preventing a network from unauthorized access by filtering access
packets. This is done by the software on a cable modem or a dedicated server.
Forward Error
Correction (FEC)
A technique for correcting errors incurred in transmission over a
communications channel by the receiver, without requiring the retransmission
of information by the transmitter; typically it involves a convolution of the
transmitted bits and the appending of extra bits, using a common algorithm by
the receiver and transmitter.
headend
The central office of the service provider where cable signals originate.
Home Phone Networking
Alliance (HPNA)
Industry organization that defines a set of standards for home phoneline
networking technologies (www.homephna.org).
Summary of Contents for AL 200
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Page 13: ...The Motorola AL 200 Multi User Modem 1 3 About the Motorola AL 200 Multi User Modem ...
Page 24: ...1 14 The Motorola AL 200 Multi User Modem Training the Subscriber to Use the AL 200 ...
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Page 38: ...D 2 Regulatory Information ...