FOA CFOS/W study plan
FOA CFOS/W · Give each week a clear focus.
8 weeks · About 6 hours per week
Fiber to the Home (FTTH) network architecture and applications
Map the end-to-end FTTH signal path from central office OLT through feeder, distribution, and drop to the ONT, labeling each splitter and splice point
Distinguish PON topologies (home-run, star, tree-and-branch) and state where each is deployed and why
Compare GPON, XGS-PON, and EPON in terms of downstream/upstream rates, split ratios, and wavelength plans
Explain the role of the passive optical splitter in link budget and how split ratio choice trades reach against subscriber count
Your checkpoint
A one-page hand-drawn FTTH architecture diagram with all segments, split ratios, and a table comparing GPON/XGS-PON/EPON rates and reach
Fiber to the Home (FTTH) network architecture and applications & FTTH components, hardware and optical distribution networks
Describe FTTH service applications (residential triple-play, business Ethernet, mobile backhaul) and the bandwidth each demands
Identify the function of each major hardware element: OLT, passive splitter, fiber distribution hub, access terminal, drop cable, ONT
Calculate a basic optical link budget for a PON segment given launch power, splitter loss, connector loss, and fiber attenuation
Select the correct splitter type (balanced vs unbalanced, 1x8, 1x32) for a described deployment scenario
Your checkpoint
A solved link-budget worksheet for two scenarios (dense urban 1:32, rural long-reach 1:8) showing margin against the PON class limit
FTTH components, hardware and optical distribution networks
Trace the optical distribution network from feeder cable to distribution cable to drop, naming the enclosure at each transition
Differentiate single-mode fiber types (G.652.D, G.657.A1/A2) and state where bend-insensitive fiber is required
Identify connector types (SC/APC, SC/UPC, LC) and explain why APC is standard in PON outside plant
Explain how splitters, splices, and connectors each contribute loss and where each belongs in the ODN
Your checkpoint
An ODN component inventory sheet listing every hardware item from OLT port to ONT, with fiber type, connector polish, and typical loss per element
FTTH components, hardware and optical distribution networks & FTTH installation and construction practices
Describe aerial, buried, and duct installation methods and the hardware each requires (strand, lasher, conduit, handholes)
Explain cable preparation, mid-span entry, and fiber management practices that preserve bend radius
Sequence the steps for splicing a feeder-to-distribution transition and for terminating a drop at the access terminal
State the separation and clearance rules that govern fiber placement relative to power and other utilities
Your checkpoint
A step-by-step construction sequence for one aerial and one buried drop, each with hardware list and clearance/bend-radius callouts
FTTH installation and construction practices
Perform (or simulate) fusion splicing on single-mode fiber and record splice loss for each attempt
Install an SC/APC connector or pre-terminated drop and inspect the endface for scratches, pits, and contamination
Clean and inspect connectors to the accepted pass/fail criteria before mating
Document as-built records including splice locations, splitter assignments, and fiber assignments
Your checkpoint
A splice and termination log with at least 10 splices, measured losses, endface inspection results, and a completed as-built record for a sample segment
FTTH testing, troubleshooting and certification
Explain what an OTDR measures and how pulse width, range, and index of refraction settings affect the trace
Interpret an OTDR trace to locate a splice, a splitter, a bend, and a break by distance and loss
Describe insertion-loss testing with a light source and power meter and when it is preferred over OTDR
State the pass/fail thresholds for splice loss, connector loss, and end-to-end loss in a PON link
Your checkpoint
An annotated OTDR trace for a simulated or real link identifying every event, its distance, its loss, and a pass/fail verdict against thresholds
FTTH testing, troubleshooting and certification
Diagnose common faults: high loss at a connector, macrobend, bad splice, splitter port failure, and dirty endface, given test readings
Use a visual fault locator and power meter to isolate a fault to a segment
Explain why OTDR testing through a live splitter is difficult and how to test the ODN in sections
Describe the certification record set required to hand over an FTTH link
Your checkpoint
A troubleshooting decision tree plus three worked fault scenarios, each with the evidence, the isolated cause, and the corrective action
Fiber to the Home (FTTH) network architecture and applications & FTTH components, hardware and optical distribution networks & FTTH installation and construction practices & FTTH testing, troubleshooting and certification
Review weak areas flagged by earlier deliverables and re-test each domain with timed practice questions
Re-derive the link budget and OTDR interpretation from memory without notes
Consolidate a single reference sheet of formulas, thresholds, and component losses
Walk through one complete FTTH deployment end to end, from design to certification
Your checkpoint
A timed 60-question mixed-domain self-test with a scored answer key and a one-page personal formula and threshold reference sheet
Milestones
Week 2: Can draw the full FTTH architecture and compute a link budget for a 1:32 split without notes
Week 4: Can name every ODN component, its fiber/connector type, and its typical loss, and describe aerial and buried construction sequences
Week 6: Can read an OTDR trace and state pass/fail for each event against thresholds
Week 8: Scores at least 80% on the timed 60-question mixed-domain self-test with all four domains represented