Fluke DTX-1800, Technical Reference Handbook

Page: 202 / 398

DTX Series CableAnalyzer
Technical Reference Handbook
7-44
Table 7-4.
•
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.
•
The fiber or connections have too much loss.
•
For 850 nm, the fiber length exceeds the tester's measurement range.
•
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.
OTDR Measurement Details (cont.)
Detail Description
Warnings No fiber attached or fiber too short (also see page 7-41):
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):
End of fiber is beyond range (also see page 7-40):
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.