Operating Manual Vol 1 - ES Documentation

SMIQExternal Modulation Source AMIQ(BIT ERROR RATETEST...)STATEMODEEXECUTE SINGLETERMINATIONATTRIBUTESPRBSDATA POLARITYCLOCK SLOPEENABLE RESTARTIndication of activities on data and clock line as well assynchronization status.Setting the operating mode for the BER measurement.OFF Terminating measurement.AUTO Continuous BER measurement. If one orboth termination criteria are met, a newmeasurement is initiated. SMIQ cyclicallyfetches the current measurement resultsfrom AMIQ. A measurement can take considerabletime, depending on the settingsmade. During the first measurement, theintermediate results are displayed. For allfurther measurements, only the final resultsare shown (by AMIQ). The DATA BITS andERRORS displayed are continuouslyupdated and indicate the relative valuesreferred to the current measurement.SINGLE Single BER measurement. SMIQ cyclicallyfetches the current measurement resultsfrom AMIQ while the measurement isbeing performed. If one of the terminationcriteria is met (TERMINATIONATTRIBUTES - DATA BITS andTERMINATION ATTRIBUTES - ERRORS),the measurement is terminated.A SINGLE measurement can only beinitiated by selecting the EXECUTE SINGLEmenu.Initiating a single BER measurement. This menu itemis only shown if MODE = SINGLE has been set.DATA BITS Setting the termination criterion„Number of data bits transmitted“ERRORS Setting the termination criterion„Maximum number of errorsoccurred“Setting the data period length 9, 11, 15, 20, 23 bits.Setting the polarity of the data bits.NORM Normal polarityINV Inverted polaritySetting the polarity of the clock slopes.POS Rising slopeNEG Falling slopeSwitching on or off the external restart.DATA ENABLE Setting the polarity of the DUT's Data Valid signal. 3possibilities: NOT_USED, LOW and HIGH.UNITSetting the unit for indicating the BIT ERROR RATE.OFF Indication without unit, decadic% Indication of relative frequency in per centppm Indication of relative frequency in thousandths1125.5555.03 2.367E-9