EXFO FTB-8510B Guia Del Usuario página 1062

Advanced Tabs
Service Disruption Time (SDT)
Configuration
Select the criteria that will be used for the SDT measurement.
Note: The service disruption measurements are cleared when changing the
criteria.
Layer: Select on which layer the service disruption time test will be
performed. Choices are Port, FEC, OTUk, ODUk, OPUk, OTU-1e
ODU-1e
OPU-1f
Line/Multiplex, HOP , LOP
Pattern. Where k is either 1, 2, or 3. With ODU MUX, ODU1 and OPU1
are not available. Choices depend on the selected test path.
Defect Selection: Choices depend on the selected layer. Refer to the
specific layer tab for possible alarms/errors.
Note: The Service Disruption Time measurement supports a parent defect
approach where the SDT measurement is triggered when the selected
defect or a higher defect in the signal structure hierarchy is detected. For
example, if Bit Error is selected, an OPU-AIS error will raise the SDT trigger.
Note: No defect is available with the layer Pattern when Live Traffic from the
Pattern RX on page 409 is enabled.
No Defect time: Represents the period without any defects before
stopping SDT measurement. Choices are from 5 μs to 1999999 μs. The
maximum value is adjusted with respect to the test period (the max No
Defect time is obtained when the Test Period value is set to its
maximum value: 5 min). The default setting is 1000 μs. Unit
measurement selections are μs, ms, and s.
1. Not available on FTB-8140.
412
1 1
, OPU-1e , OTU-2e
1 1
, OTU-2f , ODU-2f
1 1
, ODU-2e , OPU-2e
1 1
, OPU-2f , Section/Regenerator,
1 1 1 1
, DS1 , DS3 , E1 , E2
FTB-8100 Series Transport Blazer
1
,
1 1
, OTU-1f , ODU-1f
1 1 1
, E3 , E4 , and
1
,