Which of the following is NOT a PON architecture type?

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Multiple Choice

Which of the following is NOT a PON architecture type?

PON architectures rely on a passive splitter setup arranged in a tree-style distribution from the OLT to many subscribers, which keeps the network simple and cost-efficient. Ring topology, by contrast, would require a loop and active protection mechanisms to maintain connectivity, introducing complexity and cost that run counter to the passive-sharing model of PON. The other options fit typical PON designs: a point-to-point (PTP) or home run layout uses a direct fiber from the OLT to each subscriber; a centralized split places the splitter at a central location near the OLT to serve many users; and a distributed split places splitters at multiple points along the feeder to optimize reach and split ratios. So the topology that isn’t used as a PON architecture is the ring.

PON architectures rely on a passive splitter setup arranged in a tree-style distribution from the OLT to many subscribers, which keeps the network simple and cost-efficient. Ring topology, by contrast, would require a loop and active protection mechanisms to maintain connectivity, introducing complexity and cost that run counter to the passive-sharing model of PON. The other options fit typical PON designs: a point-to-point (PTP) or home run layout uses a direct fiber from the OLT to each subscriber; a centralized split places the splitter at a central location near the OLT to serve many users; and a distributed split places splitters at multiple points along the feeder to optimize reach and split ratios. So the topology that isn’t used as a PON architecture is the ring.

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