The disadvantages of the laminated fiber optic cable structure are ( ).A. The remaining length of the optical fiber in the cable is not easy to control B. The structure of the cable, process equipment

The disadvantages of the laminated fiber optic cable structure are ( ).A. The remaining length of the optical fiber in the cable is not easy to control B. The structure of the cable, process equipment is more complex Answer: BDE

Layered stranded structure of the cable to accommodate the number of optical fibers, fiber optic cable is easy to control the length of the fiber; cable mechanical, environmental performance is good for direct burial, pipeline and aerial; the disadvantage is that the structure of the cable, the process of equipment is more complex, cumbersome production process links, material consumption. Bundle structure cable structure is simple, simple manufacturing process; the protection of optical fibers is better than other structures of the cable, side pressure, thus improving the stability of network transmission; cable cross-section is small, light weight, especially suitable for overhead laying; disadvantage is that the number of optical fibers in the cable should not be too much, the length of the residual is not suitable for the control of the finished cable, the loose tube will appear after the shrinkage. Skeleton structure of the optical fiber has good protective properties, good lateral compressive strength; compact structure, cable diameter is small, suitable for pipeline deployment; fiber density, can be thousands of cores to thousands of cores; construction connection without removing the water-blocking ointment, high connection efficiency; drawbacks are the complexity of the manufacturing equipment, process links, the production of technically difficult. The correct answer to this question is B, D, E.