... .It is mormally used between the optical line teminal with the optical cable terminal box with thick protection layer.1 ... single amplitude,30min each directionDrop test Drop highth:1m, fiber longth:1m, drop time:5 timesDurability 1000 timesAnti- ... specializes in developing and manufacturing optical fiber(patch cord) optic communication equipment,optic cable ,electric cable ,adaptor,attenuator,conector , ...