Exfo FTB-800 Series for FTB-1 Uživatelský manuál stáhnout pdf (Strana 365)

100

101

Test Results

NetBlazer 355

Summary (ISDN PRI)

 Performance

EFS (Error Free Second) gives the number of seconds within

which no error occurred.

ES (Errored Second) gives the number of seconds in which one or

more bits are in error.

SES (Severely Errored Second) gives the number of seconds in

which bit error ratio is ≥ 1x10

-3

UAS (Unavailable Second) gives the count of the seconds

corresponding to the periods of unavailable time that begins at the

onset of 10 consecutive SES events, including these 10 seconds. A

period of available time shall begin at the onset of 10 consecutive

non-SES events, including these 10 seconds.

 Bit Error Rate/Count graphically displays a meter representing

either the bit error rate or the bit error count depending on the

Pass/Fail Verdict selection (refer to ISDN PRI - ISDN Settings on

page 148

)

When the verdict is enabled, the values under the threshold are

presented in green while the values above are in red.

When the verdict is disabled, the bit error rate is displayed in blue.

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Exfo FTB-800 Series for FTB-1 Uživatelský manuál Strana 365

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