Motorola SVG2500 User Manual page 137

This document is uncontrolled pending incorporation in PDM
17 GLOSSARY
TERM
NIC
node
noise
O
TERM
ohm
OSI
DEFINITION
establish a path between open systems. The network layer
knows the address of the neighboring nodes, packages output
with the correct network address data, selects routes, and
recognizes and forwards to the transport layer incoming
messages for local host domains.
A network interface card converts computer data to serial
data in a packet format that it sends over the LAN. A NIC is
installed in an expansion slot or can be built-in. Every Ethernet NIC
has a MAC address permanently saved in its ROM.
On a LAN, a generic term for any network device.
On an HFC network, the interface between the fiber-optic trunk
and coaxial cable feeders to subscriber locations. A node is
typically located in the subscriber neighborhood.
Random spurts of electrical energy or interface. May produce a
salt-and-pepper pattern on a television picture.
DEFINITION
A unit of electrical resistance.
The Open Systems Interconnection reference model is an
illustrative model describing how data moves through a
network from an application on the source host to an
application on the destination host. It is a conceptual framework
developed by ISO that is now the primary model for
intercomputer communications. OSI is a model only; it does
not define a specific networking interface.
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