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OP940-SW
From the Mode Select screen, select the measurement mode that was being used
previously. The references from before the diagnostic will remain and the results will
update in real time. It is advised that the reference values are verified as accurate before
more testing is completed.
Press Run and adjust the cable setup until the reflection is adequately corrected
(Pressing “Run” will disable all other buttons). This can involve disconnecting mated
cables to scope endfaces for damage and dirt, or to interchange mating adapters or
even swapping in different reference cables. When the reflection has reached a value
that is closer to the expected value, press Stop.
Press the Home Button to return to the
Mode Select screen.
Scan Mode
Example 5 (cont.): Performing OTDR-style trace in Scan Mode
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