RF
Radio Frequency
RFI
Remote-Failure Indicator
RGU
ReGenerator Unit
Route
A series of contiguous digital sections.
RPS
Ring Protection Switching
RSOH
Regenerator-Section OverHead; part of the SOH.
RZ
Return to Zero
....................................................................................................................................................................................................................................
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 NMS
Backup NMS for a network element should the primary NMS fail. A network element
should be provisioned normally on the primary NMS and then be configured for use on
the secondary NMS. 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
Glossary
...................................................................................................................................................................................................................................
365-312-847R4.0
Issue 4, November 2006
Lucent Technologies - Proprietary
See notice on first page
GL-25