EXFO FTB-8100 Series, User Manual

Page: 354 / 518

Advanced Tabs
342
FTB-8100 Series Transport Blazer
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.
³
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-1e
,
OTU-2e
,
ODU-2e
,
OPU-2e
,
OTU-1f
,
ODU-1f
,
OPU-1f
,
OTU-2f , ODU-2f , OPU-2f , Section/Regenerator , Line/Multiplex , HOP ,
LOP
,
DS1
,
DS3
,
E1
,
E2
,
E3
,
E4
, and
Pattern
. Where
k
is either 1, or 2.
With ODU MUX, ODU1 and OPU1 are not available. Choices depend on
the selected test path.
³
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 338
is enabled.
³
No Defect time : Represents the period without any defects before
stopping SDT measurement. Choices are from
5 μ s
to
1999999 μ s
. 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: 30000000 ms). The default setting is
10000 μ s . Unit
measurement selections are
μ s
,
ms
, and
s
.
³
Test Period : Represents the period of time used to calculate the SDT
measurement. Choices are
6 μ s
to
5 minutes
. Unit choices are
μ s
,
ms
,
s , and min . The default setting is 100000 μ s .