The OLT port is occupied by other optical splitters
OLT Model & Split Ratio: The OLT connects to ONTs via optical splitters, which distribute the signal. A common split ratio is 1:32 (one OLT port serving 32 ONTs), but ratios like 1:64 or 1:128 are also used in large-scale deployments. The OLT communicates with the optical network unit (ONU) or optical network terminal (ONT) at the user end, coordinating the distribution of data and ensuring that each connected user receives the appropriate information. The communication process includes: Downstream Data Transmission: The OLT sends data packets (e. An optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a passive optical network. PON networks rely on passive components (no power required) to transmit data between a central OLT (located in a telecom central office or data center) and end-user ONTs.
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