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There are three measurement blocks for SER:
1. Instant Codeword Symbol: the symbol error rate distribution for the link under test in a specific
100 ms window. Refreshes 10 times per second.
2. Accumulated Codeword Symbol: the sum of total symbol error rate distribution for the link under
test, accumulating from t =0.
3. Accumulated Percentage Distribution: the percentage distribution of total symbol error rate for
the link under test, accumulating from t=0.
4. The measurements will display:
a. Symbols ranging from 0 to 7 or from 0 to 15 (depending on the mode).
b. Symbols greater than 7 or 15 (depending on the mode).
c. The SER margin (metric indicating available margin before codewords
become uncorrectable).
d. The post-FEC FER (Frame Error Rate).
e. The FEC link.
In the following tables, the supported Real Hardware FEC graph combinations are shown.
X axis Y axis
Accumulated
Processed
Codeword
Count
Instant FEC corrected Bit Rate
Instant Corrected One Count
Instant Corrected Zero Count
Instant Corrected Codeword Count
Instant Processed Codeword Count
Instant Uncorrected Codeword Count
Instant Uncorrected Codeword Error Rate
Instant Corrected Bit Count
Instant Frame Error Rate
Instant FEC Symbol Error Count
Instant FEC Symbol Error Rate
Accumulated Corrected Ones Count
Accumulated Corrected Zeros Count
Accumulated Corrected Codeword Count
Accumulated Uncorrected Codeword
Count
Accumulated Corrected Bit Count
Accumulated FEC Symbol Error Count
Averaged FEC Corrected Bit Rate
Average Uncorrected Codeword Rate
Averaged FEC Symbol Error Rate
X axis Y axis
Time
Instant FEC corrected Bit Rate
Instant Corrected One Count
Instant Corrected Zero Count
Instant Corrected Codeword Count
Instant Processed Codeword Count
Instant Uncorrected Codeword Count
Instant Uncorrected Codeword Error Rate
Instant Corrected Bit Count
Instant Frame Error Rate
Instant FEC Symbol Error Count
Instant FEC Symbol Error Rate
Accumulated Corrected Ones Count
Accumulated Corrected Zeros Count
Accumulated Corrected Codeword Count
Accumulated Processed Codeword Count
Accumulated Uncorrected Codeword Count
Accumulated Corrected Bit Count
Accumulated FEC Symbol Error Count
Accumulated FEC Corrected Bit Rate
Averaged Uncorrected Codeword Rate
Averaged FEC Symbol Error Rate
Table 6: Display of additional FEC combinations
Figure
8 : About Window