The progress and development of FTTH enable optical communications to be in close contact with us. It has now become the mainstream of communication transmission, and the covered optical fiber cable is the part closest to the user in the FTTH project. It has accumulated many series of products over time, such as fiber optic patch cords, fiber optic terminal boxes, and fiber optic cables. Splice boxes, fiber optic adapters, ODF fiber distribution boxes, etc., let's take a look at the home methods of the drop cable.
1. User indoor wiring
In the FTTH project, the user's indoor wiring is the most complicated link, and many factors are considered. It is necessary to ensure the safety of the circuit while taking into account the beauty of the interior, as well as the convenience of construction. The traditional single-core indoor optical cable can no longer meet the requirements of the indoor wiring of the FTTH project at this stage.
As a substitute for traditional indoor optical cables, drop cable can adapt to most indoor wiring conditions, for example, it can turn with a bending radius of 20mm, can bear the side pressure of people stepping on the optical cable, and the pulling force caused by engineering construction. At the same time, with a variety of field connectors, field termination and docking can be realized in the shortest time. Therefore, the drop cable is the best choice for FTTH indoor wiring.
2. Vertical and horizontal wiring in the building
Like the indoor wiring of the user, the drop cable is also suitable for vertical and horizontal wiring in the building. Horizontal cabling is not very demanding for optical cables, but vertical cabling must require optical cables to have a certain degree of tensile performance. The sheathed cable can withstand a maximum tensile force of 200 Newtons in the short-term and 100 Newtons in the long-term, so it can ensure the safety and stable performance of the vertical wiring of the sheathed cable within a certain height range.
3. Self-supporting overhead home wiring
Since the self-supporting "8" wiring optical cable has a metal suspension wire unit, it has stronger tensile performance and can withstand a span of 50 meters. 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 Drop Cable.
4. Pipeline home wiring
Since the pipe-mapped optical cable is harder and has higher tensile strength than the sheathed optical cable, and the optical cable contains water-blocking materials, which can reduce outdoor rain erosion, it is more suitable for long-distance outdoor pipeline laying. The pipe-mapping optical cable adopts a non-metallic structure, thus avoiding the entry of lightning into the room. After the fiber optic cable enters the house, the outer sheath, water blocking materials and reinforcements are stripped, and the inner sheathed fiber optic cable is directly used for indoor wiring, which inherits all the advantages of sheathed fiber optic cable indoor wiring, and reduces the link of outdoor and indoor fiber optic cable connection.
5. The drop cable can adopt on-site termination and cold connection technology
Covered cable uses mechanical optical fiber splices, also known as optical fiber cold splices, which are based on mechanical splicing technology. The installation of free-grinding on-site assembly movable connectors is simpler and faster than optical fiber splices, and has high reliability. It is suitable for occasions such as high places in corridors, small spaces, insufficient lighting, and inconvenient access to electricity. The connection method is simple to operate, the personnel training period is short, and the tool investment is small. It is very suitable for the connection of FTTH home optical cables.
No power supply is needed during operation, and it only takes 30 seconds to realize a fixed fiber connection with a loss of less than 0.1dB. It can be used for various combinations of 250um and 900um optical fibers. The necessary tools are all in a set of toolboxes.