FOA CFOS/DAS case studies
FOA CFOS/DAS · Put your knowledge to work in context.
The FOA CFOS/D - Certified Fiber Optic Specialist in Design - is a specialist-level credential offered within the Fiber Optic Association's certification programs, aimed at technicians and planners who design fiber optic networks rather than only install or test them. The FOA describes its design textbook as the textbook for FOA CFOS/D certification courses training fiber optic techs to design fiber optic networks, and the second edition of that book adds project management material. The FOA CFOS/DAS case studies are 5 cases and about 3,200 words.
1Campus Backbone: Reusing Legacy OM2 Versus Installing Singlemode
Ridgeline University needs a 10 Gb/s backbone among four buildings. The fiber route from the core switch in Building A to Building D is 1,850 m and passes splice vaults at Buildings B and C.
671 words, about 3 min2Arena DAS: OM4 Bid Fails on Reach and Loss
A 22,000-seat arena is adding a neutral-host digital DAS. The BTS hotel sits in the north service corridor, and 36 remote units (RUs) serve 12 sectors.
630 words, about 3 min3Rural GPON: Split Ratio, Loss Budget, and the 16-Port OLT Limit
A rural cooperative is designing GPON FTTH for 1,450 premises on 12-year-old aerial strand. The CO is centrally located; the farthest premises is 14.5 km by fiber route and the average is 7.2 km.
601 words, about 3 min4Municipal Ring: Railroad Permit, Critical Path, and a Third Drill Crew
A city is building a 42 km fiber ring linking nine traffic cabinets and three schools. The contract is 12 months with liquidated damages of $2,500 per day after day 365.
680 words, about 3 min5Data Center Cabling: Earned Value, Change Order, and Dirty Endfaces
A contractor is cabling a 6,000-strand data-center campus on a 26-week, 3.4 million contract. At the end of week 14, the control account shows PV 1.90 million, EV 1.62 million, and AC 1.85 million.
618 words, about 3 min