User guide

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Compared Symbol Count (Symbol counter)
The number of compared symbols considered for the accumulation period is
displayed here. This may not be equal to the total number of symbols sent from
the Pattern Generator. Compared Symbol count excludes any filler symbols (i.e.
K28.1,K28.1 for USB 3.0) and considers block length in Block Mode or Pattern
length in All Bits mode during comparison with Expected Data.
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Symbol Error Count (Symbol error counter)
The number of errored symbols measured during the accumulation period is
displayed here. Comparison results between incoming Compared Symbols
Count with Expected Symbol Count. Both Compared Symbols and expected
Symbols excludes Fillers Symbols and compares only the Block Length in Block
Mode or Pattern Length in All Bits mode.
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Symbol Error Ratio (SER)
The ratio of the error symbol to the symbol count is displayed here to 4
significant digits.
The following is the expression used to calculate the Symbol Error Ratio:
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Received Frame Count (Frame counter)
The number of received frames considered for the accumulation period is
displayed here. This may not equal the total number of frames sent from the
Pattern Generator.
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Frame Error Count (Frame error counter)
The total number of error frames received in a time interval is displayed here.
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Frame Error Ratio (FER)
The ratio of the number of frame errors to the number of frames received in the
current (or last completed) accumulation period, specified by the gate period
isdisplayed here.
The following is the expression used to calculate the Frame Error Ratio:
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Illegal Disparity Change Count (Wrong disparity counter)
The total number of illegal disparity change count (wrong disparity count)
received in a time interval is displayed here.
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Filler Symbol Count (Filler symbol counter)
The total number of filler symbol count received in a time interval is displayed
here.
The following is the expression used to calculate the Filler Symbol Count:
7 Evaluating Results
386 Agilent J-BERT N4903B High-Performance Serial BERT