The OPCEV144 is a 1st level vertical fiber optic splice closure with an IP68 protection rating, suitable for aerial, underground and fiber optic pole installations. It can hold 144 splices and ensures their integrity. The splice closure has an internal organizer system for managing and storing the optical fibers, where the reserve of the cable buffers or, where appropriate, the distribution of bare fibers in the splice trays can be accommodated. It offers an easier closing method for opening and closing during the installation or maintenance of optical links.