With the development of optical fiber in the field of communications in recent years, optical fiber access has become a hot spot in the field of optical communications. In optical fiber access projects, indoor wiring close to users is the most complicated link. The bending performance and tensile performance of conventional indoor optical cables can no longer meet the requirements of FTTH (fiber to the home) indoor wiring. Therefore, in order to meet the needs of indoor wiring, people have developed and designed a fiber drop cable.
Applications of Fiber Drop Cable
1.User indoor wiring
Indoor butterfly cables are available in specifications such as 1 core, 2 cores, 3 cores, 4 cores, etc. Single core cables should be used for residential users to access butterfly optical cables; for business users to access butterfly optical cables, 2--4 core cables design. There are two forms of butterfly-shaped home optical cables: non-metallic strengthening members and metal-strengthening members. Taking into account the factors of lightning protection and strong electric interference, non-metallic strengthening member butterfly optical cables should be used indoors.
2.Vertical and horizontal wiring in the building
Like the indoor wiring of the user, the horizontal wiring is not very demanding on the optical cable, but the vertical wiring must require the optical cable to have a certain strength of tensile performance, so we must consider the tensile performance of the fiber drop cable when purchasing.
3.Self-supporting aerial-home wiring
The self-supporting "8" wiring optical cable adds a metal hanging wire unit on the basis of the fiber drop cable, so it has greater tensile strength, can be used for overhead laying, and is suitable for outdoor overhead wiring into indoor wiring environment. The optical cable is laid in an overhead manner outdoors, the metal hanging wire unit is cut off before entering the house, and fixed on a special holder, and the remaining optical cable is stripped of the metal hanging wire and introduced into the room with a fiber drop cable.
4.Pipeline home wiring
Pipe-mapping optical cables and self-supporting "8" wiring optical cables are both indoor and outdoor integrated optical cables, which can adapt to both indoor and outdoor environments, and are suitable for FTTH introduction from outdoor to indoor. Due to the addition of outer sheath, reinforcements and water-blocking materials on the basis of the fiber drop cable, the pipe-mapping optical cable has improved hardness and waterproof performance and is suitable for outdoor pipe laying.