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Using the Loss/Length Option
Loss/Length Test Settings
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Table 7-1. Loss/Length Test Settings
SETUP Tab Setting Description
Job tab Job settings The job settings are saved with test results to identify the job site, the cables tested, and
the test direction. Before you run a test you will save, verify that the job and fiber ID
information is correct. See Chapter 2 for details.
Cable tab FIBER TYPE Select a fiber type that is appropriate for the type you will test. You can select factory-
installed fiber types or custom types, which you configure with the Edit Custom Test Limit
function in FUNCTIONS. See Chapter 9 for information on creating custom fiber types.
Cable tab MANUAL
CABLE
SETTINGS
n (index of
refraction)
When MANUAL CABLE SETTINGS is disabled, the n values depend on the selected fiber
type. When MANUAL CABLE SETTINGS is enabled, the tester enters default values that
you can change manually.
The n values defined in the fiber types are suitable for most applications. Minor
differences between the tester's n and a fiber's actual n usually do not make enough
difference in length to fail a fiber.
Increasing n decreases the reported length.
Loss/Length
tab TEST LIMIT The tester compares the loss/length test results to the selected test limits to produce PASS
or FAIL results. You can select factory-installed limits or custom limits configured with the
Edit Custom Test Limit function in FUNCTIONS. Custom limits are marked with asterisks (*).
See Chapter 9 for information on creating custom test limits.
Note
Select a fiber type before selecting a test limit. The fiber type determines which test
limits are available.