Keysight E4980A User Manual page 487

Scanner Interface
Signal Input/Output Connector
Assertion timing for /INDEX and /EOM is different for normal measurements
and list sweep measurements.
Table F-4 Control output signal assertion timing (normal measurement)
Signal Name
/INDEX
/EOM
Table F-5 Control output signal assertion timing (list sweep measurement, SEQ mode)
Signal Name
/INDEX
/EOM
Table F-6 Control output signal assertion timing (list sweep measurement, STEP mode)
Signal Name
/INDEX
/EOM
Control Input Signal
Trigger signal to start measurement.
The / (slash) in the signal name means that the signal is asserted when
low.
Keysight E4980A/AL User's Guide
Timing
/INDEX is asserted when an analog measurement is completed
and the E4980A/AL is ready for the next DUT to be connected to
the UNKNOWN terminals.
/EOM is asserted when the measurement data and the
comparison results are valid.
Timing
/INDEX is asserted when the last analog measurement of a list
sweep measurement is completed.
/EOM is asserted when all list sweep measurements are
completed and the measurement results are valid.
Timing
/INDEX is asserted when each analog measurement of a sweep
measurement is completed.
/EOM is asserted when each step measurement, including
comparison and display time, is completed.
EXT_TRIG External trigger. This signal triggers the E4980A/AL on
the rising edge of a pulse when the trigger mode is set
to EXT_TRIG.
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