Viavi OneExpert DSL ONX-580, User Manual

Page: 198 / 282

Chapter 13 Copper Testing
OneExpert DSL User's Guide
22052280, Rev. 015 April 2019 198
Locating faults using RFL
The following procedure describes how to locate cable faults using the Single Pair Resistive
Fault Locator (RFL), the Separate Pair RFL and the K-Test. Separate Pair RFL is an additional
mode available on the ONX580P only.
Single Pair RFL test
1. Connect the Tip (A), Ring (B), and Ground (Earth) leads to the line under test.
2. From the Copper menu, press the
RFL button. The RFL
screen appears.
3. For greatest accuracy, Viavi recommends that you
compensate the opens measurement to remove the effects
of the test leads. To compensate the opens measurements:
• Swipe downward on the screen to access the Tray
menu.
• Select RFL Compensation .
• Follow the instructions on the screen to connect
the black, red, and green leads to perform test lead
compensation.
• Press Compensate . The compensation stops
automatically when finished.
4. To select the cable makeup, press Single Gauge or Multiple Gauge .
• If you selected single gauge, specify the temperature and gauge.
• If you selected multiple gauge, do the following:
- Enter the length, gauge, and temperature for the cable section and then
select Add .
- You can delete an entire line by pressing the Delete softkey.
- Repeat for each gauge of the cable.
5. To change the type of test to run, do the following:
• Press Mode .
• Select Single Pair or K-Test . If you have ONX 580P, you can also select the
option: Separate Pair . If testing toward a UFED, press the checkbox next to
UFED Enabled .