The box type packaging structure of the optical splitter comprises a hollow module box, wherein a round hole and a rectangle hole are arranged in the body wall of the module box, a single fiber rubber cap is mounted on the round hole and provided with an input end casing pipe in a. The box type packaging structure of the optical splitter comprises a hollow module box, wherein a round hole and a rectangle hole are arranged in the body wall of the module box, a single fiber rubber cap is mounted on the round hole and provided with an input end casing pipe in a. An optical cable split fiber box is a device used in fiber optic communication networks to split the signal from one input into multiple outputs, allowing multiple devices to be connected to a single fiber optic cable. The box is typically composed of several parts, including the enclosure, the. A fiber-optic splitter, also known as a beam splitter, is based on a quartz substrate of an integrated waveguide optical power distribution device, similar to a coaxial cable transmission system. The optical network system uses an optical signal coupled to the branch distribution. Splits are most commonly factors of 2, such as 1x2, 1x4, 1x8, 1x16, 1x32. In the backbone of modern Fiber-to-the-Home (FTTH) networks, optical splitters serve as the unsung heroes that enable cost-efficient connectivity for millions of subscribers. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network.