JDS Uniphase OneExpert DSL, Руководство пользователя

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Appendix A Troubleshooting
Resolving problems
OneExpert DSL User’s Guide
April 2014 22052280, Revision 001
93
Resolving problems
If you are having trouble with the OneExpert DSL OneExpert DSL, the following sections describe
common problems and solutions. You should verify whether your problem is listed here before
contacting technical assistance.
The following section addresses questions that may be asked about completing tests with the
OneExpert DSL OneExpert DSL. There are four sections included:
• General
• Copper tests
• Coax tests
• DSL tests
• Data tests
General testing
The following section addresses questions about testing in general using OneExpert DSL.
Issue
Inconsistent test results.
Resolution
Verify that your test leads are good and are connected properly for the test you are performing.
Copper testing
The following section addresses questions about Copper testing.
Issue
The Tip-Ring voltage is reading negative.
Resolution
The Tip and Ring test leads may be swapped. Check your test leads to verify that they are hooked
up properly.
Issue
I am performing an Opens test. The mutual value looks good, but the Tip and Ring values are really
short.
Resolution
Verify the ground. The module must be grounded to the same ground as the pair under test. the
ground. The module must be grounded to the same ground as the pair under test.