Wise TSW200E1 - Page 49

TSW200E1
F1 F2 F3 F4
EXIT FAS CRC %
G . 8 2 1 / B I T
ERRORED SEC = 0000000
SEV.ERR SEC = 0000000
DEG RADED MIN = 0000000
AVAILAB. SEC = 0000000
UNAVAIL. SEC = 0000000
ERR. FREE SEC = 0000000
F1 F2 F3 F4
ITU-T % NEXT
G . 8 2 1 / B I T
ER R ORED SEC = 0000000
SEV.E RR SEC = 0000000
DEG R ADED M IN = 0000000
AVAILAB. SEC = 0000000
UNAVAIL. SEC = 0000000
ER R . FREE SEC = 0000000
The G.821 counters are now described:
• ERRORED SEC: shows how many one-second time intervals have at least an error.
• SEV. ERR. SEC: shows how many one-second time intervals have the bit error rate
equal or higher than 1.10
-3
.
• DEGRADED MIN: shows how many one-minute time intervals have a bit error rate
higher than 1.10
-6
.
• AVAILAB.SEC: number of available seconds during the test.
• UNAVAIL.SEC: shows the number of unavailable seconds during the test.
• ERR.FREE SEC: shows how many one-second time intervals have no error.
To go back to the ITU-T Standards screen, press <F2> (ITU-T). To display these counters in
percent values, press <F3> (%). A description of each parameter displayed in the percent values
screen follows. They all follow ITU-T Recommendation G.821. To display the FAS, CRC and E-
BIT results, press <F4> (NEXT).
• ERRORED SEC: indicates the rate between the number of one-second time intervals
that have at least one error and the available measuring time.
• SEV. ERR. SEC: indicates the rate between the number of one-second time intervals
where the bit error rate is equal or higher than 1.10
-3
and the available measuring time.
• DEGRADED MIN: indicates the rate between the number of one-minute time intervals
whose error rate is over 1.10
-6
and the available measuring time.
• AVAILAB. SEC: indicates the rate between the available seconds actually used for
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