EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Manual (Page 74)

Setting Up the Instrument in WDM Mode
66 FTB-5240S/5240BP
Setting Up WDM Analysis Parameters
You can set your pass/fail threshold limits in different ways depending on
the type of test you are performing.
Threshold Limit Definition
None No threshold limit is set. The results will be displayed without a
Pass/Fail verdict.
Min. only The threshold limit is set for a minimum value only. The
Pass/Fail verdict is declared as Pass (in green), when the value
is equal to or greater than the minimum threshold set. The
verdict is declared as Fail (in red), when the value is below the
minimum threshold set.
Max. only The threshold limit is set for a maximum value only. The
Pass/Fail verdict is declared as Pass (in green), when the value
is equal to or less than the maximum threshold set. The verdict
is declared as Fail (in red), when the value is above the
maximum threshold set.
Min. and Max. The threshold limit is set for the minimum and maximum value.
The Pass/Fail verdict is declared as Pass (in green), when the
value is equal to or within the minimum and maximum
thresholds set. The Pass/Fail verdict is declared as Fail (in red),
when the value is beyond the minimum or maximum
thresholds set.
Use Default This threshold limit option is available in the Channel
Parameters tab of Channel Results window only.
When this limit is set, the defaults set for the default channels in
the Analysis Setup tab will be applied to the channel.