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END 1-2
These refer to the direction of the test results. If THIS END in Setup is set to END 1, END 1 is the fiber end
END 2-1
connected to the INPUT port. If THIS END in Setup is set to END 2, END 2 is the fiber end connected to the
INPUT port.
When bi-directional testing is enabled, the tester shows results for both directions. If THIS END in Setup is set
to END 1, END 1 is the fiber end connected to the INPUT port when the test was finished.
PASS: The measurement in the column is within the limit.
FAIL: The measurement in the column exceeds the limit.
RESULT
The loss, length, or propagation delay result for the fiber loop. Propagation delay is time taken for the signal
to travel from the tester's OUTPUT connector to the INPUT connector (minus the delay of the reference test
cords and adapters). "Too High" is shown if the loss is too high to measure. If loss is negative, set the
reference and test the cabling again. See Table 6-10 for details.
LIMIT
The maximum loss, length, or propagation delay allowed by the selected test limit.
MARGIN
The difference between the limit and the measured value. Margin is negative for measurements that fail.
N/A
The results show N/A for values not defined by the selected test limit.
Table 6-7. Loopback Mode RESULTS Screen Features
Using the Loss/Length Option
Description
Testing in Loopback Mode
6
6-31
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