MMF
Multi-Mode Fiber
MS
Multiplexer Section
ms
Millisecond
MS-SPRing (Multiplexer Section Shared Protection Ring)
A protection method used in Add-Drop Multiplexer Network Elements.
MSP (Multiplexer Section Protection)
Provides capability for switching a signal from a working to a protection section.
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N
N/A
Not Applicable
Navis
™
Optical NMS
Optical Network Management System
NE (Network Element)
A node in a telecommunication network that supports network transport services and is directly
manageable by a management system.
NEBS
Network Equipment-Building System requirements, U.S. Telecom Requirements dealing with
EMC/EMI, Environmental, Electrical safety.
nm
Nanometer (10
–9
meters)
Node
A network element in a ring or, more generally, in any type of network. In a network element
supporting interfaces to more than one ring, node refers to an interface that is in a particular
ring. Node is also defined as all equipment that is controlled by one system controller. A node
is not always directly manageable by a management system.
NSAP Address (Network Service Access Point Address)
Network Service Access Point Address (used in the OSI network layer 3). An automatically
assigned number that uniquely identifies a Network Element for the purposes of routing DCC
messages.
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365-374-074
Issue a, April 2002
Lucent Technologies
G L O S S A R Y
G L - 7
