Technical data

How to Display Symbol Frame Error Results
The following command configures the results as cBER, SER, FER, FSR, DER or ISR
and displays it on the Results Window.
SENS1:SFE:RES FER
How to Align Filler Symbols
The following command sets the alignment symbol for the initial 10b alignment
phase on the error detector's Data In port. The allowed alignments symbols are
K28.1, and K28.5.
SENS1:SFE:ASYM "K28.5"
How to Evaluate Symbol Error Ratio
You can use the following commands/queries to evaluate Symbol Error Ratio
results:
1
The following query returns total number of error symbols received in a time
interval.
[P]FETCh[:SENSe[1]]:SFECount[:ALL][:FULL][:TOTal]?
2
The following query returns the "instantaneous" number of error symbols,
calculated from the counts obtained in the last deci-second. This value is
available even when accumulation is turned off.
[P]FETCh[:SENSe[1]]:SFECount[:ALL][:FULL]:DELTa?
3
The following query returns the ratio of Error symbols to the number of symbols
received in the current (or last completed) accumulation period, specified by
the gate period.
[P]FETCh[:SENSe[1]]:SFERatio[:ALL][:FULL][:TOTal]?
4
The following query returns the "instantaneous" error ratio (Actual BER)
calculated from the counts obtained in the last deci-second. This value is
available even when accumulation is turned off.
[P]FETCh[:SENSe[1]]:SFERatio[:ALL][:FULL]:DELTa?
How to Evaluate Frame Error Ratio
You can use the following commands/queries to evaluate Frame Error Ratio
results:
1
The following query returns total number of error frames received in a time
interval.
[P]FETCh[:SENSe[1]]:FECount[:ALL][:FULL][:TOTal]?
3 Recommended Programming Techniques
72 Agilent J-BERT N4903B High-Performance Serial BERT