Fluke DTX-1800 Technical Reference Handbook page 202

DTX Series CableAnalyzer
Technical Reference Handbook
Detail
Warnings No fiber attached or fiber too short (also see page 7-41):
• No fiber is connected to the tester's OTDR port or launch fiber.
• The fiber is too short for the tester to detect events after the first deadzone.
• There is a bad connector or broken fiber within a few meters of the tester or launch fiber.
• There is a problem with the launch fiber or patch cord.
• The Pulse Width is too long.
• The launch fiber is too short.
No signal detected (also see page 7-41):
There may be a problem with the module. If the error persists, contact Fluke Networks for assistance.
Unable to find end of fiber due to weak signal (also see page 7-40):
• The fiber or connections have too much loss.
• For 850 nm, the fiber length exceeds the tester's measurement range.
End of fiber is beyond range (also see page 7-40):
• The fiber length exceeds the tester's measurement range.
• If the tester is in Manual OTDR mode, the selected range is shorter than the fiber under test.
A valid launch/receive event was not found at the expected location:
Launch Compensation is enabled on the OTDR tab in Setup, but the tester does not detect launch or
receive fibers that match the compensation settings. The tester can complete the OTDR test without
compensating for the launch or receive fibers.
7-44
Table 7-4. OTDR Measurement Details (cont.)
Description