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Two Major Problems of FTTH: Anti-Bending & On-Site Installation
Posted: 05/11/2016 02:50:56  Hits: 231
In recent years, the development of fiber optical cables makes the deployment of FTTH (Fiber To The Home) become faster, more reliable and economical. The infrastructure of broadband telecommunications has a positive impact on global economy, so as to Chinese undoubtedly. Compared with xDSL (Digital Subscriber Line), FTTH has faster data rates and lower latency. Manufactures of FTTH devices continuously develop new technique and makes the deployment become more convenient and economical. The innovative technology developed every year can reduce the installation costs for the first time and control the cost gap of other solutions. Experts indicate that: the latest technology in FTTH including: ultra-bending single-mode fiber, high-quality on-site installation connector and pre-installation technique for multi-dwelling unit environments.

Bending loss is a major problem during installing optical fiber inside the building. When installing FTTH in large-scale apartment building, technicians have to operate in small space or in various corners. Under these circumstances, bending loss becomes particularly serious. When applying standard single-mode optical fibers, at 5-10 mm bending radius, every bending may cause excessive loss, and result in network paralysis. In order to avoid the situation, experts suggest applying the ITU-TG.657 anti-bending optical fibers.

Another key factor to advance the deployment of FTTH is the on-site installation connector. When installing FTTH, the two fibers required to connect to three or more three points. Previously, these connections need welding or pre-install connectors. Welding method has lower supplymentary loss, but requires expensive equipment; on the other hand, re-install equipment also has lower additional loss and easy deployment, but needs to be pre-ordered. With the emergence of connector that can be installed directly without grinding, it’s become a new choice for its flexibility, fast and economical connection. In addition, the biggest obstacle to the popularity of FTTH deployment is the ability to reduce costs. In general, large-scale deployment, especially in complex, multi-user environment unit, requires a lot of well-trained professionals. This is particularly prominent in China for the huge number of families need install FTTH in high-density cities. The best solution to this problem is to take advantage of pre-installation solutions instead of on-site installation. Experts believe that, these techniques combined with advancement of active devices will stimulate the large demands of FTTH in the world. It’s estimated that in this year, the number of FTTH families will exceed 32%; to 2017, the world fiber-connected households will reach nearly 130 million, a CAGR of approximately 29%.

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