Chapter 8: Inspect Fiber Endfaces
Automatic Analysis of Scratches and Defects
229
To do an endface analysis
Note
The tester usually cannot do a full analysis of
MPO/MTP endfaces. The ferrules of MPO/MTP
connectors have a rough surface that the tester
interprets as a very dirty connector. For these
connectors, use the Manual test limit.
1 Make sure the test setup shows the correct FiberInspector test
limit.
2 Do the FiberInspector test.
3 Make sure the image is in focus, then tap ANALYZE.
The tester highlights the scratches and defects in red or green
(see Figure 101):
Red: FAIL. The scratch or defect is larger than the
maximum size that the limit allows, is closer to the fiber
core than the limit allows, or there are more scratches or
defects than the limit allows.
Green: PASS. The limit allows the scratch or defect
because it is too small or too far from the core to cause
problems, or there are fewer than the maximum allowed
number of scratches or defects of that size.
WCaution
If a defect is possibly a dirt particle, clean the
endface and do the inspection again. You must
remove all loose particles because they can move
into the core when you make connections.
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