A Product Description: This product is used in FTTH access system terminal access link, especially for outdoor wall or hoop-style characteristics and structural conditions of use of two instructions: 1: Box with SMC material, the use of life expectancy of more than 20 years 2: double-layer structure design, the upper wiring layer optical splitter, the lower layer of fiber splicing 3: Optical splitter modules drawer modular design, with strong interchangeability and versatility