Lucent Technologies LambdaUnite Installation Manual page 351

Service
The operational mode of a physical entity that indicates that the entity is providing service. This
designation will change with each switch action.
SES (Severely Errored Seconds)
This performance monitoring parameter is a second in which a signal failure occurs, or more
than a preset amount of coding violations (dependent on the type of signal) occurs.
SH
Short Haul
Single-Ended Operations
Provides operations support from a single location to remote Network Elements in the same
SDH subnetwork. With this capability you can perform operations, administration, maintenance,
and provisioning on a centralized basis. The remote Network Elements can be those that are
specified for the current release.
Site Address
The unique address for a Network Element.
Slot
A physical position in a shelf designed for holding a circuit pack and connecting it to the
backplane. This term is also used loosely to refer to the collection of ports or tributaries
connected to a physical circuit pack placed in a slot.
SM or SMF (Single-Mode Fiber)
A low-loss, long-span optical fiber typically operating at either 1310 nm, 1550 nm, or both.
SMN
SDH Management Network
SNC/I
SubNetwork Connection (protection) / Inherent monitoring
SNC/N
SubNetwork Connection (protection) / Non-Intrusive Monitoring
SNR (Signal-to-Noise Ratio)
The relative strength of signal compared to noise.
Software Backup
The process of saving an image of the current network element's databases, which are contained
in its NVM, to a remote location. The remote location could be theLambdaUnite CIT or Navis
Optical EMS.
....................................................................................................................................................................................................................................
365-374-059
Issue a, January 2002
Lucent Technologies G L O S S A R Y
G L - 3 5