Ethernet Passive Optical Network (EPON), outlined by IEEE 802.3ah, could be a point to multipoint (Pt-MPt) topologyenforced with splitters. Together with fibre PMDs that support this topology.
EPON relies upon a mechanism named MPCP (Multi-Point control Protocol), that uses messages, state machines, and timers, to regulate access to a P2MP topology.
A EPON network consists of an Optical Line Terminal (OLT) at the service provider’s main office and variety of Optical Network Units (ONUs) close to finish users.
EPON OLT, additionally referred to as an optical line terminal, is a device that is the service supplier termination of a passive optical network. It provides 2 main functions:
To perform conversion between the electrical signals utilized by the service provider’s equipment and also the fiber optic passive element signals utilized by the passive optical network.
To coordinate the multiplexing between the conversion devices on end of that network (called either optical network terminals or optical network units).
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