Fiber optic deployments using optical fiber connectors and adapters require identification of specific optical ports during installation, interconnection, maintenance, testing or trouble shooting.
A typical service provider utilizing a fiber optic connection, might extend from a source or Central Office to a cross box in a neighborhood, from a cross box to a curbside access terminal, from the access terminal into a subscribers home, office building, school, hospital or where ever the fiber terminates.
Within such a deployment, connections of the optical fibers between the various intermediaries are typically accomplished through the use of fiber adapters mounted within patch panels, cabinets, or racks. Each of the panels, cabinets, or racks typically includes a large number of optical connectors, adapters or ports all aligned along a densely packed interface in which fiber connections can be coupled.
Thus, because of the sheer number of cables and the small area in which the cables are packed, as well as the distances and interconnections required of fiber optic applications, the problem of uniquely identifying specific connectors becomes very clear.