Exfo FTB-800 Series for FTB-1 Manual de usuario descargar pdf (Pagina 324)

100

101

Test Results

314 FTB-700G/800 Series

Performance Monitoring

 SEP (Severely Errored Period) (G.828 only): A sequence between 3 to

9 consecutive SES. The sequence is terminated by a second which is

not a SES.

 SEPI (Severely Errored Period Intensity) (G.828 only): Gives the count

of SEP events in available time, divided by the total available time in

seconds.

Far-End

 EFS (Error Free Second): Gives the count of the seconds within which

no error occurred or when a defect is detected on the near-end.

 EC (Error Count) (G.821 only): Gives the number of bit errors.

 EB (Errored Block) (G.826, G.828, and G.829): Gives the count of

blocks in which one or more bits are in error.

 ES (Errored Second): For G.826, G.828, G.829, M.2100 ISM, and

M.2101: Gives the count of the seconds within which one or more

anomalies (FAS (DSn/PDH), EB, etc.) occurred or at least one defect

occurred.

 SES (Severely Errored Second)

For G.826, G.828, G.829 and M.2101: Gives the number of seconds

within which anomalies (FAS (DSn/PDH), EB, etc.) are  X% or at least

one defect occurred. X = 30% for DSn/PDH signals; see the following

table for SONET/SDH signals SES threshold.

OC-1

STS-1e

STM-0

STM-0e

OC-3

STS-3e

STM-1

STM-1e

OC-12

STM-4

OC-48

STM-16

OC-192

STM-64

Path 30% 30% 30% 30% 30%

Line/MS 15% 15% 25% 30% 30%

Section/RS 10% 30% 30% 30% 30%

1 2 ... 319 320 321 322 323 324 325 326 327 328 329 ... 620 621

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Exfo FTB-800 Series for FTB-1 Manual de usuario Pagina 324

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