https://www.fiberopticalsplitter.com/ The introduction line of the PLC splitter, watch this video you will know how to assemble the PLC splitter. 00:14:07-00:52:09, Part 1 Optical Coupling. 00:52:10-01:44:04, Part 2 Packaging. 01:44:05-02:32:05, Part 3 Assemble Connector. 02:32:06-03:05:03, Part 4 Assemble Plug-in Type PLC Splitter.