Testing
FTTx Networks
Objectives:
From this self-study lesson you should learn:
- How has the PON coupler change the way FTTx networks
are tested?
- What are the minimum testing requirements?
- Why should you test at different wavelengths and in
both directions?
- What differences do you see with OTDR testing across a
PON coupler?
- How do you test how well the system is transmitting
data?
New
network architectures (PONs or passive optical networks)
have been developed that allow sharing expensive
components for FTTH. A passive splitter that takes one
input and broadcasts it to as many as 32 users cuts the
cost of the links substantially by sharing, for example,
one expensive laser with up to 32 homes and only requiring
an inexpensive laser at each home. However, this
architecture changes the methodology of testing the
complete installed cable plant and links for proper
operation. Of course, individual links are tested as
usual, it is the PON coupler that creates the difference.
The course leads you to read online or printed materials
(with an emphasis on the online using the FOA Guide),
watch FOA YouTube Videos, complete some activities and
take the quizzes. Each lesson plan will be self-contained.
Lesson plans open in new pages so the course overview page
stays open to lead you to the next lesson or you may use
the link at the bottom of the page.
Student Assignment
Read
the references, watch the videos and take the quizzes
(Test Your Knowledge)
Online
FOA Reference
FOA
Online Guide to Fiber Optics,
Testing
FTTx Networks
Videos
Lecture
66 FTTH Network Installation and Test, plus
for background on testing Fiber
Optic Testing
Reference
Textbook
The
Fiber Optic Association Fiber To The Home Handbook:
Chapter 6
Extra
Credit Reading and Videos
Assignments beyond the basics required for the
course will be listed as extra credit.
Overview
of fiber optic testing, OSP and premises.
YouTube
Lectures Relevant To This Lesson Include:
FOA
Lecture 12: Fiber Optic Testing Overview
FOA
Lecture 13: Testing Fiber Visually
FOA
Lecture 14: Testing Optical Power
FOA
Lecture 15: Five Ways To Test Fiber Optic Cable Plants
FOA
Lecture 16: Insertion Loss Testing
FOA
Lecture 17: OTDR Testing
FOA
Lecture 18: OTDR Setup
FOA
Lecture 19: OTDR Measurement Uncertainty
Watch
the ones which relate to issues you need to learn more
about.
Test
Your Knowledge
Online
Quiz
Next
Lesson: Planning
and Managing FTTx Networks
When
you finish the next assignments and the case study, you
can take an online exam on this course to qualify for a
"Fiber U Certificate of Completion." Go
here for directions.
Return
to Fiber U FTTx Course Home Page
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