OLT is optical line terminal. OLT belongs to the service node side of the access network and is connected to the corresponding service node equipment through SNI interface to complete the service access of the access. OLT is optical line terminal. Unlike active optical components requiring power, PON leverages passive splitters, making the modules in the Optical Line Terminal (OLT) at the provider's end and the Optical Network Unit (ONU) or. The Passive Optical Network (PON) is the indispensable foundation for delivering ubiquitous, multi-gigabit broadband connectivity, a necessity for modern economies and residential life. The ODN is a passive device that connects the OLT and ONU. It distributes downstream data and centralizes upstream data, and is highly reliable. It also coordinates the multiplexing of ONTs to share the uplink transmission. Key components of an OLT. 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.
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