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A Passive Optical LAN (POL) is a fiber-based network architecture that uses passive optical components to provide high-speed, secure, and energy-efficient data transmission within buildings or campuses. Unlike traditional copper-based LANs, POL employs optical splitters and single-mode fiber to deliver data from a central optical line terminal (OLT) to multiple optical network terminals (ONTs) without the need for active electronic equipment between them. This results in lower power consumption, reduced maintenance, and greater scalability. Widely used in enterprise networks, hotels, hospitals, and educational institutions, Passive Optical LAN offers a future-ready solution for organizations seeking faster connectivity, simplified infrastructure, and long-term cost savings.