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Chapter 14 CD measurements using phase shift method
Configuring the CD test
Auto values: No
Dispersion
Threshold value is entered manually: select the maximum dispersion threshold (ps/nm)
: from >1 to > 10000 ps/nm.
NOTE
Max. dispersion threshold is always considered for non normalized disper-
sion values.
The Pass/Fail indication is provided in the results table.
Analysis parameters
In the Setup page, press Analysis softkey (if one parameter is selected in the current
screen, press Top Menu soft key to display the right menu keys and click on Analysis).
Measurements
Fiber Length
Unknown
Distance
Distance Unit
When the fiber length is set manually, choose the distance unit: km / kfeet / miles.
Normalized to km
No
Yes
432
If you do not know the fiber length
Press Edit Number to enter fiber distance: Min=1km / Max=20000
kmDispersion coefficients (normalized values) will be calculated
accordingly.
Only Dispersion results of the link are displayed, in ps/nm.
In addition to dispersion results, dispersion coefficient are calculated
according to the fiber length and listed in the table.
User Manual
78000010220 Rev. 024
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Troubleshooting
