Alcatel-Lucent 1643 AMS User's Operation Manual page 707

Glossary
RSOH
Regenerator-Section OverHead; part of the SOH.
RZ
Return to Zero
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S SA
Service Affecting Synchronous Adapter
SAI
Station Alarm Interface
SC
Square coupled Connector
SD
Signal Degrade
SDH
Synchronous Digital Hierarchy. Definition of the degree of control of the various clocks
in a digital network over other clocks.
SDH-TE
SDH - Terminal Equipment
SEC
SDH Equipment Clock
Secondary ITM-SC
Backup ITM-SC for a network element should the primary ITM-SC fail. A network
element should be provisioned normally on the primary ITM-SC and then be configured
for use on the secondary ITM-SC. See also Geographic Redundancy.
Section
A transport entity in the transmission media layer that provides integrity of information
transfer across a section layer network connection by means of a termination function at
the section layer.
Section Adaptation (SA)
Function that processes the AU-pointer to indicate the phase of the VC-3/4 POH relative
to the STM-N SOH and assembles/disassembles the complete STM-N frame.
Section Overhead (SOH)
Capacity added to either an AU-4 or to an assembly of AU-3s to create an STM-1.
Always contains STM-1 framing and can contain maintenance and operational functions.
SOH can be subdivided into MSOH (multiplex section overhead) and RSOH (regenerator
section overhead).
SEF
Support Entity Function (in NE)
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365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
GL-27