Single core 10G jumper cables are used for local area network cabling between different buildings in enterprises. Optical active devices are interconnected through optical links within communication bases. Wiring is carried out in distribution boxes for residential areas, industrial area computer rooms, and commercial building computer rooms. Optical models are connected to building dense cabling systems, fiber optic communication systems, cable TV networks, telecommunications networks, metropolitan area networks, wide area networks, and FTTX. Online consultation is available through the national hotline