Components of fiber optic distribution box

Internally, it consists of a PLC optical splitter chip coupled with fiber optic arrays at both ends. The chip uses semiconductor technology to grow and produce a layer of splitter waveguide on a quartz substrate. The chip has one input and N output waveguides. Then, input and output fiber arrays are coupled at both ends of the chip.
The exterior is composed of ABS boxes and square steel pipes, optical cables, and fiber optic connectors.