EPON distance: EPON supports distances of approximately how many kilometers?

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Multiple Choice

EPON distance: EPON supports distances of approximately how many kilometers?

EPON reach is governed by the optical power budget. The signal from the OLT travels through passive splitters to multiple ONUs, so it loses power in both the fiber and the splitter. With typical fiber losses and common splitter ratios, the light remains detectable by the ONUs only up to about 20 km. Pushing farther would drop the received power below what the ONU can interpret unless you add amplification or repeaters, which isn’t part of a standard EPON setup. So, the practical maximum distance is around 20 km. Shorter distances like 5 km are easily supported, but much longer spans such as 60 or 100 km would require different architectures or active components beyond standard EPON.

EPON reach is governed by the optical power budget. The signal from the OLT travels through passive splitters to multiple ONUs, so it loses power in both the fiber and the splitter. With typical fiber losses and common splitter ratios, the light remains detectable by the ONUs only up to about 20 km. Pushing farther would drop the received power below what the ONU can interpret unless you add amplification or repeaters, which isn’t part of a standard EPON setup. So, the practical maximum distance is around 20 km. Shorter distances like 5 km are easily supported, but much longer spans such as 60 or 100 km would require different architectures or active components beyond standard EPON.

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