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Problem 5: if the measured trace is as shown in Fig. 10-2:
Fig. 10-2
Possible reasons:
① Improper connection
②Inclined connector para-position
③ Misaligned dowel pin
Solving method:
① Reconnect
② Change the connector
z
Testing setting problem
Problem 6: The trace curve is too short, and the measurement time is too long.
Possible reason: The set testing distance is too long.
Solving method: Set proper length scope according to the actual length of optical fiber or the
length that found by the automatic measurement model.
Problem 7: Only partial trace is displayed, which causes test failed.
Possible reason: The set testing distance is too short.
Solving method: The testing distance should be set larger than or equals to the actual length of
optical fiber
Problem 8: partial events are measured
Possible reason: Too big pulse width
Solving method: 1. Choose a smaller range of pulse width.
2. Increase testing time.
Problem 9: The trace is too noisy.
Possible reason: The pulse width is too small, and the scanning time isn
’
t enough.
Solving method: 1. Increase the testing time.
2. Increase the pulse width properly.
