Agilent Technologies N5980A manual Error Detector, Input, SFP Data Pattern, SMA Data Pattern

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Reference for the User Interface

Error Detector

Data Pattern:

The Error Detector (ED) has a built in CDR for automatic clock recovery, and phase alignment. The ED also performs automatic polarity correction when required. Additionally it can detect the incoming PRBS. The input for the Data Pattern has two options, SMA [Electrical], and SFP [Optical]. SMA [Electrical] is the default input for the Error Detector.

Automatic

Error Detector determines the incoming data stream

 

automatically. The supported data streams are:

 

PRBS 2^7-1

 

PRBS 2^15-1

 

PRBS 2^23-1

 

PRBS 2^31-1

SFP (Optical

The data pattern is taken from the current setting on the SFP

Generator)

generator output.

SMA (Electrical

The data pattern is taken from the current setting on the SMA

Generator)

generator output.

PRBS 2^7-1

A PRBS 2^7-1 is used for pattern synchronization.

PRBS 2^15-1

A PRBS 2^15-1 is used for pattern synchronization.

PRBS 2^23-1

A PRBS 2^23-1 is used for pattern synchronization.

PRBS 2^31-1

A PRBS 2^31-1 is used for pattern synchronization.

Input:

There are two inputs to the Error Detector, the SMA (Electrical), and the SFP (Optical).

Advanced

In the Advanced tab you can separately set the Data Patterns, and Error insertion for the SFP and SMA generator outputs.

Generator

SFP Data Pattern:

In this drop down list you have the same set of patterns, as in the setup page, to select from. The selected pattern will affect the SFP output.

SMA Data Pattern:

In this drop down list you have the same set of patterns to select from. The selected pattern will affect the SMA output.

N5980A User Guide

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Contents Agilent 125 Gb/s Serial Bert Herrenberger Str Revision 1.0 MaySafety Summary Environmental Information Contents Programming Reference Introduction CD content is Inspect ShipmentSerial Bert Front Panel Connect the InstrumentTo Connect N5980A Rear PanelSerial Bert setup diagram Install User Software for N5980ATo Install the User Software for N5980A Select the folder in which N5980A will be saved To Access N5980A Demo Offline Introduction Advanced ModeRunning the BER Test Setup Setting the Instrument ParametersAdvanced BER displays Gating BER and the Elapsed Gating Time Viewing the ResultsAdvanced Mode Store SettingFile Menu Connection Menu Each PC can control only one N5980A ConnectError Indicators Help MenuInfo Error BER BarSync Loss Setup and Advanced Tab GeneralGenerator SMA Data Pattern Error DetectorInput SFP Data PatternGating BER Bar BER and Advanced BER TabAdvanced BER Gating ErrorsActual Errors Error Detector PatternAgilent N5980A Command Summary Common Command SummaryScpi Instrument Command List- Reference Common CommandsID Query Option Query Read error queueLoad factory default setting Operation completeDatarate Store current settingRecall setting All ChannelsEither sets or gets the pattern of the SMA output SMA Output Electrical GeneratorPattern SOUR1PATTOutput Level Error InsertionAdd Single Error Insertion RateSFP Output Optical Generator SOUR2PATTEither sets or gets the pattern of the SFP output SOUR2PATTEADDRATE SOUR2PATTEADD OnceSyntax SOUR2PATTEADD Once SENS1PATT? Trigger OutputDetected Pattern SOUR3PATTSynchronization mode Actual Bit Error RateActual Number of Errors Start Gating Gating Bit Error RateGating Number of Errors Gating TimeSENS1INP Description Selects the input for the error detectorGating Progress Input SelectionSample Code Communicate with the instrument Programming Reference
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