- G.821: Error performance of an international digital connection operating at a bit rate below the primary
rate and forming part of an integrated service digital network (ISDN)
o Long term error performance conducted Out of Service (OOS)
o Based on measuring bit errors
o Evaluation period of 30 days
o Since there is no overhead structure at these bit rates, in-service measurements are extremely difficult
-
G.826:
End to end error performance parameters and objectives for international, constant bit rate digital paths and
connections.
o Long term error performance for Out of Service (OOS) and In-Service Measurement (ISM)
o Based on measuring bit errors for connections and block errors for paths
o Evaluation period of 30 days
-
G.828 Analysis
: Error performance parameters and objectives for international constant bit rate synchronous digital paths
o Deals exclusively with SONET paths
o Long term error performance for Out of Service (OOS) and in-service
o Based on measuring block errors
o Evaluation period of 30 days
-
G.829 Analysis:
Error performance events for SONET Regenerator and Multiplexer sections
o Deals exclusively with SONET sections
o Error event definition
o Based on measuring block errors
-
M.2100:
Performance limits for bringing into service and maintenance of international multi-operator PDH/DSn paths and
connections
o Deals exclusively with PDH/DSn paths, sections and systems
o Based on measuring bit errors and block errors
TX150 e-Manual D07-00-023 Rev A02
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