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OF-500 OptiFiber Certifying OTDR
Technical Reference Handbook
Bi-Directional Testing
You can test cabling in both directions and save the bi-
directional test results in all test modes.
Bi-Directional Testing in Smart Remote or Loopback
Mode
1
On the main tester's Job tab in Setup, enter names
for END 1 and END 2 to identify the ends of the
cabling. Name END 1 as the end where the main
tester will be located.
2
Set THIS END to END 1.
3
On the main tester's Loss/Length tab, set
BI-DIRECTIONAL to Enabled.
4
Run a loss/length test on the cabling. Halfway
through the test, the tester prompts you to swap the
fibers at each end of the cabling. Swap the
connections at the patch panel, not at the tester's
ports.
s
5
Press
to save the test.
6-40
Bi-Directional Testing in Far End Source Mode
1
On the Job tab in Setup, enter names for END 1 and
END 2 to identify the ends of the cabling. Name END
1 as the end you will test first.
2
Set THIS END to END 1.
3
Test all the cabling and save the results from END 1.
4
On the Job tab, change THIS END to END 2; then test
all the cabling from the other end. When you save
each result, use the same fiber ID you used for the
results from the first end. The used IDs will be in the
IDs IN CURRENT FOLDER list.
Diagnosing Loss/Length Test Failures
Table 6-10 describes some typical causes of loss/length test
failures.
See also the table in Appendix C, which shows results
from a survey on common causes of fiber link failures.
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