User`s guide

Bit Rate Patterns - Determines the number of patterns over which a single time measurement is made.
Because the pattern and total number of UI is known, the Bit Rate that is reported is an average value derived from
the total time across a number of patterns (defined by Bit Rate Patterns) divided by the total number of UI contained
in that many patterns.
Bit Rate Samples - Determines the total number of time samples acquired for the single time measurement. Because the
pattern and total number of UI is known, the Bit Rate that is reported is an average value derived from the total time
across a number of patterns (defined by Bit Rate Patterns) divided by the total number of UI contained in that many
patterns.
Bit Rate Standard Error - Indicates when suspect measurements have been taken, usually as a result of improper
pattern selection. Default is 0.5 UI. Any measurements deviating from the ideal by more than this value will
produce an error message and the test will stop. This value may need to be increased if the signal has more than 0.5
UI of jitter (such as tolerance testing).
Bounded Uncorrelated Jitter (BUJ) - Jitter that is uncorrelated to the data signal, yet bounded in amplitude. A typical
source might be cross talk from another data signal. See also Deterministic jitter.
Brickwall - Brickwall sets the limits of a filter function. It may be for a high-pass or low-pass filter, depending on RJ +
PJ min or RJ + PJ max being configured. No RJ or PJ values below or above the user-selected value will be shown
in Summary measurements. When setting RJ + PJ min filter, any value entered must be above the -3dB frequency.
The -3dB frequency controls how much information is acquired. The Brickwall filter value is applied after the
measurement has been made.
Calc Initial Conditions - Chooses whether to automatically calculate the initial conditions or allow user entry.
Calculator - Clicking on this button accesses the operating system calculator.
Calibration - See Appendix C,
SIA-3000™ Calibration.
Calibration… (Options) - The
Calibration… selection is used to access the instrument's calibration options and has a
separate button for each option. The instrument firmware version is used by GigiView™ to determine which features
the instrument can support and is displayed at the top of the dialog window. See Appendix C for a complete
explanation of all calibration features.
Calibration Signal Output - When first turned on, the instrument will not be outputting any calibration signal from the
Calibration OUT connectors. To select a signal,
• Click on the Calibration pull-down menu of the main Menu Bar,
• Select the Calibration Signal Output option and the output frequency choices will be displayed.
• Select an output frequency.
Cancel - Closes main dialog bar for choosing GigiView tools and returns to previous dialog bar view.
© WAVECREST Corporation 2005 Glossary
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