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LBI-39169 GLOSSARY
82
TERM DEFINITION
HP OV NNM
Hewlett-Packard
O
pen
V
iew
N
etwork
N
ode
M
anager. Management platform
that provides common management functions, such as data collection and
reporting, using standard protocols and software interfaces.
Hub
Used to concentrate several 10BaseT (Twisted Pair Ethernet) onto coaxial
Ethernet. OSI physical layer only.
IEA
Integrated EDACS Alarm.
IMC
I
ntegrated
M
ultisite and
C
onsole
C
ontroller − The Ericsson GE IMC is a
digital audio switch that routes audio/mobile data/Aegis data between EDACS
radio systems and dispatch consoles. It is a second generation multisite
controller plus a console controller for the C3 series consoles.
IMC Node Icon
The IMC Node icon consists of a Switching Center.
Internet
A set of networks connected by IP routers and appearing to its users as a
single network.
Internet Protocol
The Internet Protocol (IP) is the TCP/IP layer 3 protocol responsible foe
transporting datagrams across the network.
IP Address
An IP (Internet Protocol) address is the numeric identifier address of an
element.
ISDN
Integrated Services Digital Network. A set of CCITT standards aimed at
integrating voice and data services. ISDN provides end-to-end digital services.
Allows for interconnection of remote systems and LANs over an ISDN
network for applications running on top of the standard TCP-IP protocol.
Jessica
Ericsson’s tradename for a Private Branch Exchange (PBX) Gateway for
telephone interconnect via a central network node.
LAN
Local Area Network. A short-distance data communication system that uses
moderate to high data rates (100 kb/s to 50 Mb/s). The network interconnects
a group of computers to provide intercommunication, sharing of data files,
software, and printers.
LAPB
A modified form of HDLC that CCITT chose as the link level protocol for
X.25 networks. LAPB provides for the reliable transfer of a packet from a host
to an X.25 packet switch, which then forwards the packet to its destination.
LRIM
L
ogging
R
ecorder
I
nterface
M
odule − This CEC/IMC interface module
provides audio outputs for logging recorders. Each output channel can be
programmed to supply audio based on groups or individual units within the
CEC/IMC network.
Managed Object
An object holding network management information, characterized by an
identifier, a value, implementation requirements, and valid operations.