Viavi ONX-220, Руководство пользователя

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ONX-220 User's Guide
22135173, Rev. 000 June 2020 90
Chapter 4 CATV Testing
To run Cable Fault Finder
1. Select
Cable Fault Finder
under the CATV menu header. The Cable Fault Finder
Setup screen appears.
2. Select the mode: Drop Check or Cable Length.
3. For Drop Check, select the desired demarcation point to be tested:
Tap
or
Ground Block . A graphic showing the appropriate connection schematic for this
test will appear along with appropriate instructions for the port to be used.
4. Assign this test to a saved work order (optional but recommended).
Select the Work Order ID button and the list of available work orders will
appear. Select one.
5. Configure the cable type or create a new one.
6. Start the test by selecting the
Start button at the bottom of the screen.
Results
For a detailed discussion of the results produced by this test, see "Cable Fault Finder
results" on page 190 .
Cable Length
Similarly, the Cable Length mode is intended to measure any coax cable’s length, looking
for a single reflection. This is helpful if you need to order a replacement drop and need
to determine the length and verify after the replacement is complete.