EXFO FTB-8510B Guia Del Usuario página 1068

Advanced Tabs
Service Disruption Time (SDT) - Monitor
Channel Selector
Edit Mode: Allows to add or remove channels on which SDT
measurement will take place. Click on each channel to be added or
removed. Only channels with blue background are selected for SDT
measurement. All channels are selected by default.
Select All selects all channels for SDT measurement.
Deselect All deselects all channels.
Config Tab
The config tab displays and allows configuration of the global SDT
parameters.
Note: The service disruption measurements are cleared when changing the
criteria. The test needs to be stopped to change the SDT parameters.
Layer: Select the protocol layer. Choices are HOP for SONET/SDH,
ODU0 and OPU0 for OTN.
Defect Selection: Select the defect which will be used to trigger the
SDT measurement.Choices depend on the selected layer. Refer to the
specific layer tab for possible alarms/errors (see Errors/Alarms: on
page 420).
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 is detected in the signal structure hierarchy is
detected. For example, if Bit Error is selected, an OPU-AIS error will activate
the SDT trigger.
418
FTB-8100 Series Transport Blazer