ts light signals to electrical signals in the building's wiring center. The data grade twisted-pair copper cabling carries Internet and other broadband signals to each apartment. www.TechnicalPDF.com Using PONs to Deliver Fiber to the Home in Cities and Sections of Metropolitan Areas PONs to the home are widely deployed in Asian countries such as Japan and South Korea, and in China, where much of the infrastructure was upgraded or built from scratch. Dense populations are a factor in making it feasible to lay fiber to homes in these countries. The lack of density in the United States compared to other countries makes it costly and challenging to build fiber to homes. Fiber to the home is capable of reaching up to 32 homes from a single splitter. Figure 4-12 presents a list of countries with the most fiber to the home (FTTH). we FTTH Connected Penetration VS. Other Most Similar Countries CONNECT deployment population China population density(179) Australia Comparing to countries 35 million i Mavinn IVIGAILU Russia true FTTH deplyment, Canada is third Turkey and Mexico is fift (Based on 2015 Global France building.) Germany Poland Figure 4-12 Countries with the largest percentage of fiber to the home. (Courtesy of Broadband Association) Verizon currently has the largest installed base of PON connected fiber. AT&T, CenturyLink, and most cable Multiple System Operators (MSOs) bring fiber deep into neighborhoods and then use twisted-pair or coaxial cabling to serve customers. Some providers bring fiber all the way to curbside pedestals in much of their territory. These implementations serve only 8 to 12 customers per PON device. PON service closer to customers is more expensive per subscriber to deploy but provides higher-speed service because fewer customers share the fiber. PONs are also used to bring fiber all the way to premises in new "greenfield" developments (new industrial or residential developments). In addition, they are the basis for wireline infrastructure in developing countries. In addition to providing