How To Do Bi-directional Tests on Single Fibers

A bi-directional test gives you OTDR results for both directions on a fiber. The tester automatically calculates averages of the two results and includes the averaged values in the test record.

1. On the home screen, tap the Next ID panel.
2. On the CHANGE ID screen, turn off the Auto Save function and set the End 1/End 2 control to End 1.
3. Enter names for the ends of the fiber (optional):
   1. On the CHANGE ID screen, tap the panel that shows End 1:.
   2. On the EDIT END NAME screen, tap the End 1 and End 2 panels to use the keyboard to enter names for each end. Tap DONE to save the names.
4. On the CHANGE ID screen, tap DONE.
5. Clean and inspect all connectors, then connect the tester to End 1 of the link.
6. Tap TEST or press the TEST button, then save the result.
7. Clean and inspect the connector for End 2 of the link, then connect the tester to End 2.
8. Press the HOME button, then tap the Next ID panel.
9. Tap the End 1/End 2 control at the top of the screen to make it show End 2, then tap DONE.
10. Tap TEST or press the TEST button.
11. Save the result with the same ID you used for End 1.

The tester automatically calculates bi-directional averages of loss measurements and includes the averaged values in the test record.