FOA CFOS/T study plan

Map the anatomy of outside plant and premises cable plants (OSP vs. premises, cable types, enclosures, splices, patch panels) by sketching a one-page diagram from memory

List the inspection and cleaning steps for connectors (dry cleaning, wet cleaning, inspection scope use, one-click cleaners) in correct order without notes

Identify the pass/fail criteria for connector endfaces (scratches, pits, contamination) using the IEC 61300-3-35 zones concept, and explain why zone limits differ for single-mode vs. multimode

Demonstrate (or describe in writing) the correct sequence for inspecting and cleaning a pair of patch cords before mating

Calculate the number of inspection points in a sample 12-fiber trunk from OSP entry to rack, and justify which points must be inspected

Explain the difference between testing OSP cable plants and premises cable plants in terms of environmental exposure, access, and acceptance criteria

Describe visual fiber tracing methods (visible light sources, tone generators, fiber identifiers) and when each is appropriate

Outline a fault-location workflow that starts with visual tracing and escalates to OTDR or power meter measurements

Given a fault scenario (e.g., high loss on one channel of a 24-fiber trunk), list the first five diagnostic steps in order

Identify safety and handling practices for OSP testing (laser safety, bend radius, connector protection)

List the types of fiber optic test instruments (power meter, light source, OTDR, OLTS, VFL, inspection scope, fiber identifier, CD/PMD analyzer) and state the primary measurement each performs

Explain how an optical power meter works, including detector types, wavelength calibration, and range selection

Describe how to reference and zero a power meter and light source pair, and why reference power matters

Perform (or simulate) a power measurement at 1310 nm and 1550 nm and convert between dBm and mW

Match each instrument to a specific test scenario (e.g., continuity check, absolute power, loss, fault distance)

Describe the one-jumper and two-jumper reference methods for insertion loss testing and explain when each is used

Calculate insertion loss for a link given source power, received power, and reference power

Build a loss budget for a point-to-point link using per-component loss values (connectors, splices, fiber attenuation, splitters) and a safety margin

Compare a measured insertion loss result to a calculated loss budget and determine pass/fail

Explain the sources of error in insertion loss testing (reference method, connector quality, wavelength mismatch)

Explain OTDR fundamentals: pulse width, dead zone, dynamic range, and how they affect event detection

Interpret an OTDR trace by identifying connectors, splices, bends, and end-of-fiber reflections

Describe fiber characterization tests (attenuation, CD, PMD, ORL) and which are required for high-speed or long-haul systems

Set OTDR acquisition parameters (range, pulse width, averaging time, IOR) for a given link length and explain each choice

Calculate distance to an event from an OTDR trace using IOR and time delay

Describe PON architecture (OLT, splitter, ONT) and the unique challenges of testing PONs (live vs. dark fiber, splitter loss, upstream/downstream)

Explain how to test a PON link using an OTDR through a splitter and why standard OTDR traces are difficult in PONs

Identify measurement uncertainty sources in fiber optic tests (instrument accuracy, connector repeatability, temperature, wavelength uncertainty)

Calculate combined uncertainty for a simple loss measurement using given component uncertainties

Explain how to report a measurement result with uncertainty and why it matters for pass/fail decisions

Compile a comprehensive testing checklist covering pre-test inspection, instrument setup, measurement, documentation, and cleanup

Review connector inspection and cleaning steps and integrate them into the checklist as a mandatory pre-test step

Review visual tracing and fault-location steps and add them to the checklist for troubleshooting scenarios

Identify common checklist omissions (e.g., reference verification, connector cleaning, wavelength recording) and explain the consequence of each

Adapt the checklist for three scenarios: new installation acceptance, troubleshooting, and periodic maintenance

Integrate insertion loss, OTDR, loss budget, and uncertainty concepts by solving a full link acceptance scenario from end to end

Review OSP and premises testing requirements and produce a final acceptance report outline

Practice explaining measurement uncertainty in plain language to a customer or project manager

Identify weak areas from prior weeks and create a one-page personal summary sheet of formulas and key values

Complete a timed 30-question self-test covering all domains and score at least 80%