Exfo FTB-800 Series for FTB-1 Manual de usuario descargar pdf (Pagina 321)

100

101

Test Results

NetBlazer 311

Performance Monitoring

Near-End

 EFS (Error Free Second) (G.821, G.826, G.828, and G.829): Gives the

number of seconds within which no error occurred.

 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.821, and M.2100 OOSM: Gives the number of seconds within

which one or more bit error occurred, or during which Loss Of Signal

(LOS) or AIS is detected.

For G.826, G.828, G.829, M.2100 ISM, and M.2101: Gives the number

of 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.821, and M.2100 OOSM: Gives the number of seconds within

which a bit error ratio is  10

-3

, or during which one defect (LOS/AIS) is

detected.

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 ... 316 317 318 319 320 321 322 323 324 325 326 ... 620 621

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Exfo FTB-800 Series for FTB-1 Manual de usuario Pagina 321

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