Operating and Maintenance Instructions – 83
TXTalk—the column shows the total (also called “cumulative”) crosstalk in all specified
channels adjacent to the reference channel. The channels to include are all the ITU channels
included in a specified wavelength range.
See the How the SWS Calculates Values section for explanations of the methods used to
calculate these values.
A set of checkboxes and buttons, which enable the user to control the analysis, are below the
table of computed parameters.
Auto Analysis Checkbox—when checked, the table is updated every time a new scan is
acquired.
Log to File Checkbox—when checked, the table is written to a specified file every time the
table is updated. The name of this file is shown in the adjacent text box and can be changed
using the standard Browse button.
Select Analysis Button—used to select the type of analysis. When this button is pressed, a
dialog box is displayed (Figure 72).
Analysis Definition File
Analysis is performed from a predefined analysis definition file (ADF) or by creating a new file.
The following is an example of an ADF file:
UnitsX 0
UnitsY 0
ITUspace 100
CITUListType 1
CITUStartWavelength 0.000
CITUStopWavelength 0.000
CITUListSize 0
<CITUListBegin>
<CITUListEnd>
Comments This is an example of an analysis definition file
Date/Time May 24,2000, 16:05
Record# Enable Ch Min Max BW/CW StartWL StopWL RefP
BRef Thld Mrks RefWL FtSize PBand PBtld Ftness FRange
XTalk XTRange CumXTalk Comments
1 1 002 1 1 1 1541.158 1630.000 0 0 0.500
0 0 0 0 0.500 0 Bandwidth 0 0.500 0 None
2 1 003 1 1 1 1541.158 1630.000 0 0 0.500
0 0 0 0 0.500 0 Bandwidth 0 0.500 0 None
3 1 004 1 1 1 1541.158 1630.000 0 0 0.500
0 0 0 0 0.500 0 Bandwidth 0 0.500 0 None
4 1 005 1 1 1 1541.158 1630.000 0 0 0.500
0 0 0 0 0.500 0 Bandwidth 0 0.500 0 None
5 1 001 1 1 1 1541.158 1630.000 0 0 0.500
1 0 0 0 0.500 0 Bandwidth 0 0.500 0 None
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