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Fibre Optic
Testing
Test tools are
different.
Premises
Local Area Network (LAN) networks differ from their long-haul Wide Area
Network (WAN) cousins in several ways.
First,
multimode fibre dominates in premises applications.
Second,
premises link lengths are relatively short with few or no splices.
Third,
optical loss events are closely spaced and the number of terminated links
to test is large.
For
example, it's not unusual for the number of links to exceed 1,000,
especially when the installation includes fibre in the horizontal to
desktops. For these reasons, the tools you use to test LAN networks will
be different from those you use to test WAN networks. But knowing which
one to use and when can be a challenge if you don't know what you're
looking for.
|
Attribute
|
Visual
Fault Locator
|
Optical
Loss Test Set
|
OTDR
|
Certification
Test Set
|
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Fibre Tracing
|
Best
|
Worse
|
NA
|
NA
|
|
Fault Location
|
Better
|
Worse
|
Best
|
Worse
|
|
End-to-End length
|
NA
|
NA
|
Better
|
Best
|
|
End-to-End link loss
|
NA
|
Best
|
Better
|
Best
|
|
Splice Loss
|
NA
|
NA
|
Best
|
NA
|
|
Reports
|
NA
|
Better
|
Better
|
Best
|
|
Cost
|
Best
|
Better
|
Worse
|
Better
|
 
Fibre
Optics | Fibre
Termination | Fusion
Splicing | OTDR Testing |
Installation
|