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Creating a custom fiber type for OTDR tests - DTX Compact OTDR Module

You can create up to nine custom Fiber Types for OTDR tests with the DTX Compact OTDR Module. To create a custom fiber type for OTDR tests, follow these steps:

  1. Turn the rotary switch to SETUP; then select Fiber OTDR.
  2. Select Fiber Type; then select Custom.
  3. Press F1 Create.
  4. On the Custom screen, select Name; then use the text editing screen to enter a name for your custom fiber type. Press SAVE when you are done.
  5. On the Custom screen, select Use Default Values From, select a fiber group; then select a fiber type as a baseline for your custom fiber type.
  6. To change the index of refraction (n) for your custom fiber, select n for a wavelength; then use the editing screen to enter a value for n. Press SAVE when you are done. Repeat as necessary for other wavelengths.
  7. To change the backscatter coefficient, press RIGHT ARROW to go to the next tab on the Custom screen, select Backscatter for a wavelength; then use the editing screen to enter a value. Press SAVE when you are done. Repeat as necessary for other wavelengths.
  8. From the Custom screen, press SAVE when you are done creating the fiber type.

    The tester saves the custom fiber type in the Custom list, with asterisks (*) before and after the name.

Editing Custom Settings
The editing function lets you change values in existing custom settings. To edit an existing custom cable, fiber type, test limit, or outlet configuration:

  1. Turn the rotary switch to SETUP; then select Twisted Pair, Fiber Loss, or Fiber OTDR.
  2. On the Twisted Pair, Fiber Loss, or Fiber OTDR menu, select the item that includes the custom settings you want to edit (Cable Type, Fiber Type, Test Limit, or Outlet Configuration).
  3. If you selected Test Limit, press F1 More.
  4. Select Custom.
  5. Use the UP ARROW or DOWN ARROW to highlight a custom setting; then press F3 Edit.
  6. Make your changes on the Custom screen; then press SAVE.

Deleting Custom Settings
To delete a custom cable, fiber type, test limit, or outlet configuration:

  1. Turn the rotary switch to SETUP; then select Twisted Pair, Fiber Loss, or Fiber OTDR.
  2. On the Twisted Pair, Fiber Loss, or Fiber OTDR menu, select the item that includes the custom settings you want to delete (Cable Type, Fiber Type, Test Limit, or Outlet Configuration).
  3. If you selected Test Limit, press F1 More.
  4. Select Custom.
  5. Use the UP ARROW or DOWN ARROW to highlight a custom setting.
  6. Press F2 Delete; then press F3 Yes.

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- OTDR