FIBER ROUTING INSERT AND OPTICAL JUNCTION OR DISTRIBUTION BOX

A fiber routing insert for an optical junction or distribution box, having: a first floor; first guide elements extending, along a spacing direction transversal to the first floor, from the first floor to first ceiling portions, the first guide elements defining a first path on the first floor configured to receive optical fibers, the first path defining a figure-eight fiber locking path; a second floor arranged at a raised position relative to the first floor and spaced apart from the first floor along the spacing direction, the second floor having a splicing area for splicing the optical fibers on the second floor; second guide elements arranged on the second floor, the second guide elements defining a second path on the second floor configured to receive optical fibers, a connecting element configured to guide optical fibers from the first path to the second path, the first ceiling portions define the second floor.