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Glossary
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Line
Transmission line; refers to a transmission medium, together with the associated high speed
equipment, that are required transport information between two consecutive network elements,
one of which originates the line signal and the other terminates the line signal.
Line Build Out (LBO)
An optical attenuator that guarantees the proper signal level and shape at the receiver input.
LTU
Line Termination Unit.
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M
Manager
Capable of issuing network management operations and receiving events. The Manager
communicates with the Agent in the controlled network element.
MDI
Miscellaneous Discrete Input
MDO
Miscellaneous Discrete Output
MIB
The Management Information Base is the database in the node. The MIB contains the
configuration data of the node. A copy of each MIB is available in the EMS and is called the MIB
image. Under normal circumstances, the MIB and MIB image of one node are synchronized.
MSP
Multiplex Section Protection. Provides capability of switching a signal from a working to a
protection section.
MTBF
Mean Time Between Failures
Multiplexer Section Protection (MSP)
Provides capability of switching a signal from a working to a protection section.
Multiplexer Section Shared Protection Ring (MS-SPRING)
A protection method used in multiplex line systems.
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N
NE
etwork Element. The E is comprised of telecommunication equipment (or groups/parts of
telecommunication equipment) and support equipment that performs network element functions.
A etwork Element has one or more standard Q-type interfaces.
Node
A node or network element is defined as all equipment that is controlled by one system controller.
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GL-4
Alcatel-Lucent – Internal
Proprietary – Use pursuant to Company instruction
365-313-103R8.0
Issue 2 July 2009
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