Fiber optic passive component — Optical Terminal Box, model SB-02. This is a compact, indoor wall-mountable enclosure widely used in FTTH (Fiber to the Home) networks to terminate the optical cable at the customer's premises. It provides reliable protection for the fiber splice point (between the incoming drop cable and the internal connecting wire) and securely houses optical couplers. The box features a convenient design and an easy installation system, making it an ideal solution for use in residential homes and office environments.