The National Electrical Code definition of Point of Entry for fiber optic cable (NEC 2014, Article 770.2) states:
"The point within a building at which optical fiber cable emerges from an external wall, from a concrete floor slab, from rigid metal conduit (RMC), or from intermediate metal conduit (IMC)."
My question is if a conduit run that contains metal pull boxes is used to create a distant Point of Entry within a building, is this still code compliant, or are pull boxes not allowed?
I would think that it would still be compliant, otherwise a long conduit run without pull boxes could be impractical, but I don’t know if a pull box would be considered as exposing the cable. Code prohibits non fire rated cable from running more than 50’ exposed from the Point of Entry.