In FTTH project, the user indoor wiring is the most complex link, and many factors are considered. The traditional single core indoor optical cable can not meet the requirements of FTTH project at this stage.
As a substitute of traditional indoor optical cable, leather cable can adapt to most indoor wiring conditions, such as turning with a bending radius of 20 mm, bearing the side pressure of people stepping on the optical cable, and the pulling force brought by engineering construction drag.
At the same time, with a variety of field connectors, it can realize the field termination and docking in the shortest time. Therefore, the leather cable is the best choice for FTTH indoor wiring.
Vertical and horizontal wiring in the building
Like the indoor wiring of users, leather cable is also suitable for vertical and horizontal wiring in buildings. Horizontal wiring is not very strict for optical cable, but vertical wiring must have certain tensile strength.
The maximum tensile force of leather cable is 200N in short term and 100N in long term, so the construction safety and performance stability of leather cable vertical wiring can be ensured within a certain height range.
Self supporting overhead indoor wiring
Due to the metal suspension unit, the self-supporting "8" type optical cable has stronger tensile performance and can withstand a span of 50 meters. The optical cable is laid in an overhead way outdoors. Before entering the house, the metal suspension unit is cut off and fixed on the special fixer. After stripping the metal suspension, the remaining optical cable is led into the house with leather cable.
Because the pipeline mapping optical cable is harder and has higher tensile strength than the leather cable, and the optical cable contains water blocking material, which can reduce outdoor rain erosion, it is more suitable for long-distance outdoor pipeline laying.
The pipeline mapping optical cable adopts all non-metallic structure, so as to avoid thunder entering the room. After the optical cable enters the house, the outer protective layer, water blocking material and reinforcement are stripped, and the middle leather cable is directly used for indoor wiring, which inherits all the advantages of leather cable indoor wiring, and reduces the link of outdoor and indoor optical cable connection.