EXFO FTB-8100 Series Transport Blazer for FTB-200 - Manual (Page 359)

Advanced Tabs
SONET/SDH Application 347
Round Trip Delay (RTD)
Status
Indicates the test status of the RTD test. The status is only available when
the test case is running.
³
Ready indicates that the last calibration sequence has been successful
and the test is now ready to perform RTD measurement.
³
Running indicates that the RTD test is running.
³
Cancelled indicates that the RTD test has been stopped before its
completion.
³
Calibration Failed indicates that the test calibration failed due to at
least one of the following conditions:
³
Internal errors.
³
Bit error/alarm injection like Pattern Loss.
Therefore the RTD statistics becomes unavailable since the test does
not allow RTD testing.
³
Disabled: Indicates that the RTD feature is disabled. For example, this
condition occurs for DS0/E0 test case having all its timeslots set to
Idle/Tone.
³
--: Indicates the the RTD measurement is not ready.