ETA FCI-OSP Exam Study Guide (2026)
Everything the ETA Copper Integration Technician, Outside Plant (FCI-OSP) tests, topic by topic: what each section covers, the facts that come up most, and how to study it. Pair it with the free 15-question practice test.
The exam at a glance
| Questions | 75 multiple-choice questions |
|---|---|
| Time | 2 hours |
| Passing score | 75% |
| Format | Closed book; scratch paper and a non-programmable calculator are allowed. ETA requires you to complete an approved FCI-OSP FTTH training course and prove hands-on skills before the written knowledge exam, so this prep covers only the written exam |
| Certifying body | ETA International (Electronics Technicians Association), accredited by ICAC under ISO/IEC 17024 |
| Test provider | ETA-approved training organizations, which run the required FCI-OSP FTTH course and hands-on skills check; the written exam is proctored by an ETA Certification Administrator online (Trapeza) or on paper |
Mind map: the whole exam on one screen
Read the complete ETA FCI-OSP study notes for “Light, Electrical Basics and Safety”
Our first full set of comprehensive notes, about 14 minutes of reading: Fiber and laser safety · Heights and confined spaces · Wavelengths, dB and dBm · Reflections, electrical basics and grounding, a worked exam example, the traps examiners use and a one-minute recap. Create a free account to read it and see how premium notes work before you decide.
1. Light, Electrical Basics and Safety
Competency section 1.0: fiber safety and PPE, laser classes, confined spaces and heights, transmission basics, FTTx and PON wavelengths, dB and dBm, reflections, Ohm's law and grounding. ETA does not publish weights for FCI-OSP sections.
Key facts
- PPE: safety glasses for fiber shards and chemicals, gloves where solvents are used; put scraps in a labeled sharps container, never on the floor or in a pocket; no eating or drinking at the splice table.
- Never look into a fiber or connector that may be live. Laser classes come from the FDA's CDRH (Class I, II, IIIa, IIIb, IV) and IEC 60825-1 (1, 1M, 2, 2M, 3R, 3B, 4).
- GPON: 1490 nm down, 1310 nm up, 1550 nm RF video overlay. XGS-PON: 1577 nm down, 1270 nm up. 1625 or 1650 nm is used for in-service OTDR monitoring.
- dB is a ratio: 3 dB halves or doubles power, 10 dB is a factor of 10. dBm is absolute power referenced to 1 mW: 0 dBm = 1 mW, -10 dBm = 0.1 mW, -30 dBm = 1 µW.
- Reflections: Fresnel reflection at glass-air gaps (connectors, open ends, mechanical splices) and Rayleigh backscatter along the fiber, which the OTDR uses.
- Ohm's law: V = I x R and P = V x I. Battery runtime = volts x amp-hours / watts.
- Confined spaces such as manholes: test the air before entry in this order: oxygen, flammable gases, then toxic gases, and ventilate; follow the permit and attendant rules.
- Bonding conductors for communications protectors and NIDs are copper, at least 14 AWG, and as short and straight as practicable.
Flashcards
Exam tip: Most questions here are quick arithmetic or safety judgment. Practise dB to mW conversions and P = V x I until they take seconds, and memorize the PON wavelength plan.
2. Fiber, Copper and Coax Cable Types
Competency sections 2.0 and 3.1 to 3.8: key terms, single-mode fiber types (G.652, G.652.D, G.655, G.657), multimode, coax and twisted pair, cladding, bend radius, micro and macrobending and cable tensile ratings.
Key facts
- Single-mode fiber has a core of about 9 µm and 125 µm cladding; coatings are usually 250 µm (some 200 µm), with 900 µm tight buffer on pigtails.
- G.652.D is standard low-water-peak single-mode fiber; G.655 is non-zero dispersion-shifted fiber for DWDM at 1550 nm; G.657 is bend-insensitive fiber for drops and homes (A1 and A2 are compatible with G.652.D).
- The cladding has a lower refractive index than the core so light stays in the core by total internal reflection.
- Multimode fiber is 50 µm or 62.5 µm core; FTTH and OSP use single-mode almost exclusively.
- Microbending is many small deformations from crushing or pinching; macrobending is a bend tighter than the minimum radius. Both hurt most at 1550 nm and longer.
- Coax: RG-6 and RG-11 are 75 ohm (video and broadband); RG-58 is 50 ohm. Twisted pair: UTP has no shield; STP or F/UTP adds foil or braid.
- TIA-568.3-D installation tensile ratings: outside plant cable 2670 N (600 lbf), drop cable 1335 N (300 lbf).
- Dispersion types: modal (multimode only), chromatic (material and waveguide) and polarization mode dispersion.
Flashcards
Exam tip: Expect questions that give a symptom (loss only at 1550 nm, picture problems on TVs) and ask for the cable or fiber cause. Tie each cable type to its use.
3. OSP Cable Construction, Color Codes and Codes
Competency sections 3.6 to 3.17: jackets, TIA-598 color code and directional codes, Ethernet color codes, jacket markings, opening OSP cable, ribbon fiber, water blocking, trunk, distribution and drop cables, slack storage, the NEC and the NESC.
Key facts
- TIA-598 order for fibers and tubes: blue, orange, green, brown, slate, white, red, black, yellow, violet, rose, aqua. After 12, the colors repeat with a stripe or dash.
- Sequential footage marks on the jacket give cable length: subtract one reading from the other.
- Loose tube cable uses gel or dry water-blocking tape and yarn to stop water travelling along the cable; clean gel with an approved cleaner, not solvents that attack coatings.
- Ribbon fiber packs 12 fibers side by side for mass fusion splicing; rollable ribbon packs more fibers into a smaller duct.
- FTTH architecture: feeder (trunk) cable from the central office or hub, distribution cable to terminals, and drops to each home.
- Minimum bend radius under TIA-568.3-D for OSP cable: 20 x OD during installation and 10 x OD at rest, unless the maker specifies otherwise.
- The NESC covers the utility's aerial and buried plant, such as pole clearances and burial depth; the NEC covers premises wiring, including Article 770 for fiber and Article 800 rules for communications.
- Unlisted OSP cable may enter a building only up to 50 ft (15 m) from the point of entrance, ending in an enclosure, under NEC Article 770.
Flashcards
Exam tip: Write out the 12 TIA-598 colors on scratch paper at the start of the exam. Color-count questions then take seconds.
Test yourself on these topics
Take the free 15-question ETA FCI-OSP test, then save your results to unlock your Readiness Score and the mistakes bank.
4. Fiber, Copper and Coax Connectors
Competency section 4.0: SC, ST, LC and MPO connectors, PC, UPC and APC polishes, pigtails, inspection and cleaning, hardened and splice-on connectors, RJ45 terminations and RG-6 F connectors.
Key facts
- SC is a 2.5 mm push-pull connector and the most common FTTH connector; LC is 1.25 mm; ST is 2.5 mm with a bayonet lock.
- APC (green) has an 8 degree angled endface for very low reflectance, needed for RF video overlays and PON; UPC is blue; never mate APC to UPC.
Flashcards
Exam tip: Connector questions often hide a mismatch: APC to UPC, a dirty bulkhead or a reversed pair. Look for the detail that makes the joint fail.
5. Splicing and Splice Closures
Competency section 5.0: intrinsic and extrinsic splice factors, preparation and cleaving, fusion splice standards, closures (aerial, pedestal, building), mid-span entry, splice protectors, splice trays, pigtail splicing and mechanical splices.
Key facts
- Intrinsic factors come from the fibers themselves (mode field diameter, core concentricity); extrinsic factors come from the process (cleave angle, dirt, core offset, gaps).
- Strip, clean with lint-free wipes and isopropyl alcohol, then cleave; never wipe a cleaved end.
Flashcards
Exam tip: When a question asks why a splice failed, decide first whether the cause is in the fibers (intrinsic) or in your work (extrinsic). Most exam faults are extrinsic.
6. Splitters, Attenuators and Scope of Work
Competency section 6.0: blueprints, SDS, cut sheets and AHJ rules, weather effects, fiber identifiers, splitter uses and theoretical losses, adding drops to closures, attenuators and documentation.
Key facts
- Ideal splitter loss is 10 log N: 1:2 about 3 dB, 1:4 about 6 dB, 1:8 about 9 dB, 1:16 about 12 dB, 1:32 about 15 dB. Real splitters add excess loss, so 1:32 often measures 16.5 to 17.5 dB.
- Cascaded splitters add their losses: 1:4 then 1:8 equals a 1:32 split, about 15 dB in theory.
Flashcards
Exam tip: For any splitter question, write 10 log N for each stage and add them. Then compare measured readings with that number plus normal excess loss.
7. FTTH Hardware and Measurement Testing
Competency section 7.0: ONT and NID installation, external power and battery backup, power meters and loss test sets, microscopes, light sources and VFLs, finding non-reflective breaks, splitter testing, tone and wiremap tests, fiber to copper conversion and splicer care.
Key facts
- The ONT converts the optical signal to electrical Ethernet, voice and RF video for the home; the NID is the demarcation point between provider and customer wiring.
- Fiber cannot carry central office power, so the ONT needs local power and a battery backup unit for voice service in outages; runtime = volts x amp-hours / watts.
Flashcards
Exam tip: Testing questions usually give two or three readings. Write each one down with its sign, subtract carefully and decide whether the result is normal before choosing an action.
8. Customer Premises Installation
Competency section 8.0: customer safety and security, preparing confined and elevated work spaces, fishing and pulling cable, TIA-606 labeling, bend radius and tension, fiber and low-voltage cable management, speed testing and finding reference information.
Key facts
- Confirm the work order, introduce yourself, protect floors and furniture and agree the ONT, router and cable routes with the customer before drilling.
- Ladders: set the foot about one quarter of the working length out (4 to 1 rule), extend 3 ft above any landing and keep three points of contact.
Flashcards
Exam tip: Premises questions reward common sense plus the numbers: the 4 to 1 ladder rule, bend radius and tension ratings. Pick the answer that protects the customer, the cable and you.
How to pass
- This is the only ETA fiber exam that tests copper and coax in depth: RJ45 terminations to T568A/B, RG-6 F connectors, tone and probe, wiremaps and grounding wire sizes all sit beside fiber topics.
- Learn the splitter numbers cold: 1:2 is about 3 dB, 1:4 about 6 dB, 1:16 about 12 dB and 1:32 about 15 dB in theory, and cascaded splitters add their losses.
- Know which code applies where: the NESC for the utility's aerial and buried plant, the NEC for cable once it enters the premises, and OSHA and ANSI A14 for ladders, heights and confined spaces.
- 75 questions in 2 hours is 96 seconds each, and you need 75%. Bring a non-programmable calculator for dB, dBm and power arithmetic, and answer every question.
Frequently asked questions
How long should I study for the ETA FCI-OSP exam?
Most working candidates need 4 to 8 weeks at 45 to 60 minutes a day. Book your exam once your Readiness Score has stayed at 80 or higher for about a week.
Can I take the ETA FCI-OSP exam online?
BICSI's v15 handbook describes the RCDD exam at Pearson VUE test centers, not remote proctoring. Format: closed book; scratch paper and a non-programmable calculator are allowed. eta requires you to complete an approved fci-osp ftth training course and prove hands-on skills before the written knowledge exam, so this prep covers only the written exam. Check pearsonvue.com/bicsi for the options in your country.
What score do I need to pass the ETA FCI-OSP exam?
75%. The exam has 75 multiple-choice questions and a time limit of 2 hours.
What are the most tested topics?
The outline covers light, electrical basics and safety, fiber, copper and coax cable types, osp cable construction, color codes and codes, fiber, copper and coax connectors, splicing and splice closures, splitters, attenuators and scope of work, ftth hardware and measurement testing, customer premises installation. Use the free practice test to see which ones you need most.
The premium ETA FCI-OSP study path
Premium ETA FCI-OSP prep is studied one topic at a time. Each step starts with that topic's key notes and flashcard deck, then its own question sets of 25, so you master one topic before you move to the next. When every topic is strong, the 6 full mock exams show you're ready.
Your step-by-step study path
- 1Light, Electrical Basics and Safety8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Notes free with an account
- 2Fiber, Copper and Coax Cable Types8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 3OSP Cable Construction, Color Codes and Codes8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 4Fiber, Copper and Coax Connectors8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 5Splicing and Splice Closures7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 6Splitters, Attenuators and Scope of Work7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 7FTTH Hardware and Measurement Testing7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- 8Customer Premises Installation7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25Premium
- Final step: 6 full mock exams75 questions each, timed like test day. Pass them, then book your exam.Premium
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- Video lessons as they release
- Content updates during your access
- 5 bonuses: numbers and formulas sheet, standards atlas, study planner and more
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Summarized from BICSI's official candidate information and the rules cited, checked October 2026. Confirm current requirements with ETA International (Electronics Technicians Association), accredited by ICAC under ISO/IEC 17024.