Free professional tool for ISP engineers and FTTH network designers. Instantly compute insertion loss, power at each subscriber port, and fade margin for PLC and FBT splitters — including dual cascade configurations. Power is divided equally among output ports. Excess loss accounts for manufacturing imperfections, typically 0. Covers GPON (1490 nm / 1310 nm), EPON, and RF video overlay (1550 nm). See power budget impact instantly, then download a CSV or PDF summary. Common values: 2, 4, 8, 16, 32, 64. Drop length Adds. This is often called Distribution Loss or Ideal Split Loss. The formula for the theoretical loss for each output port of a splitter with N output ports is:. In fiber optic networks, particularly in FTTx (Fiber to the x) and PON (Passive Optical Networks) deployments, splitters play a central role in distributing the optical signal from a single source to multiple destinations.
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