... fiber suffers no attenuation Dome mechanical seal fiber optic splice closurse (FOSC)Features1, Advanced internal structure design2,easy ... enough for winding and storing fibers5, fiber optic splice trays (FOSTs) are designed in SLIDE-IN- ... & ribbon fibers2, Aerial, underground, wall-mounting, hand hole-mounting and duct-mountingOrdering InformationOptical splice trays TypeFibers/ trayMax. capacitySize ...