What is a Passive Optical Network (PON)? | Glossary
What is a passive optical network (PON)? A passive optical network (PON) uses fiber-optic technology to deliver data from a single source to multiple endpoints. "Passive" refers to the
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A passive optical network consists of an optical line terminal (OLT) at the service provider's central office (hub), passive (non-power-consuming) optical splitters, and a number of optical network units (ONUs) or optical network terminals (ONTs), which are near end users. A passive optical network (PON) is a fiber-optic telecommunications network that uses only unpowered devices to carry signals, as opposed to electronic equipment. In practice, PONs are typically used for the last mile between Internet service providers (ISP) and their customers. A clear understanding of each element's function and location is essential for appreciating the network's overall design and efficiency. "Passive" refers to the use of optical fiber cables connected to an unpowered splitter, which in turn transmits data from a service.
