光缆是由什么组成的?
Fiber optic cables are made up of several components: a core, cladding, jacket, 和 strength members.
The core is the 光纤 itself which is a continuous str和 of ultra-thin glass.
Within the core, there are two highly specialized glass coatings called cladding 和 jacketing.
The cladding helps bounce back imperceptible light signals as they travel along the cable by reflecting off of its walls.
The jacketing protects the delicate 光纤s from mechanical damage 和 environmental effects.
最后, strength members such as aramid yarns or steel wires are used to reinforce 和 protect the cable further against bending or stretching forces. Together these components form a 纤维 optic cable that carries light signals over long distances without signal loss or interference.
The Carrollton facility is vertically integrated, with 纤维 delivered on a daily basis from the OFS Norcross facility, approximately one hour away.
The manufacturing facility is registered in compliance with the ISO 9001, ISO 14000, 和TL 9000标准. Traceability is maintained through every step of the process 和 ultimately back to the incoming 纤维. The facility also has a fully functional product qualification lab 和 cable installation test track.
OFS makes several different 纤维 结构 in the Carrollton facility, 包括松套管、扁带和 rollable丝带 结构. These 结构 are used in different cable types 和 applications.
Each stage in the manufacturing process is highly controlled with appropriate dimensional targets 和 tolerances.
The industry st和ard color code is used to provide clear identification of the 纤维s over their lifetimes. Colored ink is applied to specified thicknesses, 治愈, 和 respooled for the next step in the process.
使管子松动, 纤维s or ribbons are paid off of their spools 和 a buffer tube is extruded around them. The Carrollton plant makes gel-free 和 gel-filled buffer tubes of different materials, 包括聚丙烯和PBT. Different sized buffer tubes are used for different product types. Buffer tubes used in outside plant applications include either water blocking materials impregnated with super absorbent polymer or gel.
A matrix material is applied to the 纤维s to bind them together so they can be spliced as a group. 12 和 24 纤维 平的丝带 are most common. Fiber color code alignment 和 geometric specifications are very important so ribbons can be spliced 和 connected in the field.
Rollable ribbons are only partially bonded together, enabling them to be rolled into a cylindrical package. Rollable ribbons are only partially bonded together, enabling them to be rolled into a cylindrical package. Since circles are more space efficient than rectangles, rollable丝带s cables can hold twice the 纤维s as comparable sized flat ribbon cables. 因为这些纤维是部分粘合的, they can be easily spliced either as single 纤维s or as a ribbon, giving more deployment flexibility to the network operator.
OFS makes two main types of cables – str和ed cables 和 central tube cables.
Str和ed cables are made by str和ing tubes of 纤维s, 平的丝带, or rollable丝带s around a central member. Str和ed cables are often used in applications requiring frequent access to 纤维s.
Central tube cables are made by extruding a central tube around a 纤维 structure. Central tube cables can provide higher 纤维 density.
力量成员, including 纤维glass 和 aramid yarns are used to limit the strain on cables 和 纤维 when tension is applied to cables.
Yarns 和 tapes are added to provide water blocking outside the core of the cable.
直埋电缆, one or more steel armor layers may be added to provide rodent resistance 和 toning capability.
Different versions of polyethylene are used for the majority of outside plant cables. 适用于厂房内或室内外电缆, materials are chosen to include appropriate flame 和 smoke resistance.
电缆类型, 生产日期, length 和 a unique serial number that can enable traceability through the manufacturing process is printed.
一旦制造完成, the finished cable undergoes final testing for length 和 optical properties.
Cables are then packaged for shipment 和 loaded on trucks to their final destination.