1.        Different functions can be realized through the replacement of relevant accessories: the function of four kinds of distribution boxes used for optical fiber splitting,  termination, splicing and storing optical cable packed with rubble wire respectively are flexibly switched from each other. 

2.        Integrating optical cable fixing, splicing, redundant optical fiber and optical cable packed with rubble wire collecting into one unit.

3.        The bottom plate of the adapter and the installation framework of the splitter are designed to be rotary which can be rotated outside the frame, allowing convenient operation and maintenance.

4.        The inserted sealing ring is used in the cable entrance holes and knock down holes are reserved in the corresponding place on the upper side of the box to allow optical cables to pass through the box.