FOA CFOS/D case studies
FOA CFOS/D · Put your knowledge to work in context.
FOA CFOS/D is the Fiber Optic Association's specialist certification in fiber optic network design, aimed at technicians and planners who move beyond installation and testing into deciding how a network should be laid out, specified, and delivered. The source material describes the FOA as an international non-profit educational association chartered to promote professionalism in fiber optics through education, certification and standards, and as an internationally recognized certifying body for fiber optics. The FOA CFOS/D case studies are 5 cases and about 2,887 words.
1Campus 10G Backbone: Singlemode vs Legacy Multimode
A regional university wants a 10GBASE-LR backbone linking its data center to three campus buildings. The longest route, data center to the science building, is 2.4 km of outside plant; the other two are 0.9 km and 1.6 km.
610 words, about 3 min2GPON Subdivision: Splitter Placement Under a Tight Loss Budget
A developer asks you to design GPON service for a 384-home subdivision. The central office is 14.2 km from the farthest ONT by the proposed route.
599 words, about 3 min3Industrial 1G Link: Loss Budget Passes, Bandwidth Fails
A food-processing plant needs a 1 Gbps link from its main control room to a packaging line 380 m away. The existing cable is a 12-fiber 62.5/125 micrometer OM1 cable installed in 2008 in a shared cable tray that also carries 480 V variable-frequency drives.
563 words, about 3 min4OSP Schedule: Railroad Permit on the Critical Path
A county government awards a project to install a 6 km, 48-fiber singlemode OSP route linking three buildings. The route includes a 90 m directional bore beneath an active freight railroad, a 1.2 km aerial section on existing poles, and 1.8 km in existing duct.
539 words, about 3 min5Data Center Migration: 1,152 Links in Three Weeks
A colocation provider is migrating 1,152 duplex LC fiber links from an old meet-me room to a new meet-me room in the same building. The new path uses 288-fiber preterminated trunk cables with MPO-24 to LC harnesses; 90 percent of links are preterminated, and 10 percent must be field-terminated because of route changes.
576 words, about 3 min