FOA CFOS/S study plan

Map the full CFOS/S splicing body of knowledge into a personal checklist covering fiber physics, cable construction, splice methods, hardware, testing, and safety

Explain in writing how single-mode and multimode fiber differ in core geometry, attenuation behavior, and typical deployment context

Define and correctly use core splicing vocabulary: splice loss, reflectance, insertion loss, dB versus dBm, and wavelength-dependent loss

Assemble a personal reference sheet of formulas and unit conversions used in loss budgeting and link testing

Compare fusion splicing, mechanical splicing, and connectorization on loss performance, cost, speed, and environment of use

Describe the sequence of operations inside a fusion splicer from fiber loading through arc fusion and splice protection

Identify the purpose of each consumable and tool: cleaver, stripper, lint-free wipes, alcohol, splice protectors, and splice tray

List the contamination and handling errors that most often cause elevated splice loss

Describe how a fusion splicer aligns fibers, contrasting core alignment with clad or fixed V-groove alignment and the fiber types each suits

Explain arc power and arc time settings and how they interact with fiber type and electrode condition

Outline a routine splicer maintenance cycle: electrode inspection and replacement, V-groove cleaning, and calibration checks

Diagnose three common splicer faults from their symptoms, such as a failed arc, poor estimated loss, or fibers not seating

Explain how cleave angle and end-face quality drive splice loss and how to verify a cleave before splicing

Describe proper stripping technique to avoid nicks, fiber damage, and coating residue

Practice the full prepare-cleave-splice-protect sequence repeatedly until the steps become automatic

Interpret splicer-reported estimated loss and explain why it is not a substitute for measured loss

Describe the construction and purpose of splice closures, splice trays, and the fiber routing and bend-radius rules inside them

Explain how to manage slack, buffer tube, and strength member within a closure to protect splices from strain

Outline closure sealing and environmental protection requirements for aerial, buried, and underground installations

Identify the safety hazards of splicing work, including laser eye exposure, glass shard handling, and alcohol flammability

Explain how an OTDR measures loss and reflectance and how launch and receive cables affect the trace

Describe bidirectional OTDR testing and why averaging two directions corrects for splice loss measurement bias

Interpret a basic OTDR trace, identifying events, dead zones, and a reflective splice or connector

Explain how to set measurement wavelength, pulse width, and range appropriately for a given link

Build a link loss budget using per-splice, per-connector, and per-kilometer fiber allowances at the operating wavelength

Explain how source and power meter testing differs from OTDR testing and when each is appropriate

Describe inspection criteria for splice-on connectors and pigtail splices, including end-face defect limits

Diagnose elevated loss in a spliced span by ranking likely causes and the test that confirms each

Review the full checklist from week 1 and close every remaining gap with written explanations

Recite from memory the sequence, settings, and acceptance criteria for a compliant fusion splice

Practice explaining splicing decisions aloud as you would to a field technician or assessor

Complete a full timed self-assessment across all splicing subtopics and score it