What is FTTx?FTTx (Fiber-to-the-x; bringing optical fiber closer to the user) is a generic term used to describe many options of high-speed network architectures that use optical fiber for a part, or for the entire link up to the “last meters”. The "x" represents the termination point of the optical fiber. We often find the terms FTTH, FTTA, FTTB and FTTC.
FTTx Topologies
FTTx is a core component of Next Generation Access Networks (NGAs) that characterizes the evolution of broadband infrastructure towards improved throughput and quality of service (QoS).
High definition television (HDTV), virtual reality (VR) and other bandwidth-intensive applications are already pushing the boundaries of optical networking technology. As the applications for high-speed, low-latency FTTx continue to proliferate, the Internet of Things (IoT), 5G, smart cities, and “blockchain” technology are developing rapidly.
With a complete offer of instrument and test and monitoring software dedicated to FTTx networks, VIAVI has a range of solutions optimized for designing, installing and maintaining FTTx networks.
FTTx technologyFTTx networks offer the double benefit of higher transmission speeds and lower power consumption. By bringing the optical fiber closer to the user, it is possible to fully exploit the most modern optical fiber installation, connection and transmission techniques, while reducing the potential congestion of traditional coaxial networks. For FTTx technology to work, competent planning and execution must be ensured at every phase of the lifecycle.
FTTx network design and planningThe first step in implementing FTTx technology is to ensure proper coordination of the design and planning phases. Before designing an FTTx network in detail, preliminary planning should take into account the number of users and their location, fiber optic distribution and access points, but also architectural elements such as PON technologies. which will be incorporated into the design. The design of an FTTx network also includes the location of splices, fiber distribution patterns, and optical loss budget calculations. Avoiding existing structures and determining the location of each piece of equipment are other aspects to consider when designing a complete FTTx network.
PON ArchitectureDeployment of an FTTx networkCareful planning of an FTTx network is essential for a successful deployment. The time allowed for soldering cables and installing couplers can be tight. That's why attention to detail, accurate labeling, efficient fiber optic routing, and proper testing are all essential to avoid delays.
FTTx DeploymentWhile most FTTx components are factory tested, verifying splices and terminations in the field remains one of the most important parts of deploying an FTTx network. Improper splicing, contaminated connectors, or strain on the fiber can cause optical loss and affect quality of service (QoS). An effective installation verification plan can help reduce these risks.
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