Set The Reference Power - Black Box Fiber Meter Manual

• Set the fiber core diameter.
This allows the Fiber Meter to automatically calculate
pass-fail limits based on the test standards for different
optical fiber types and allowable losses for the optical
components. These settings are applied to all of the
links you test.

5.2 Set the Reference Power

You are required to set the Autotest reference power
before testing. Setting the reference stores the loss from
the test jumpers (launch cables) and subtracts this loss
from the measured values using the cable-under-test to
determine the loss from the cable and its connections.
We recommend that you set the reference at the
beginning of each day and after any of the following:
• Test jumpers changes.
• Any changes to the test configuration.
• Changing the batteries.
• Significant changes in ambient temperature
CHAPTER 5: Autotest
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