ISPbox

Free GPON Splitter Calculator

Calculate your Optical Power Budget. Plan GPON/EPON networks with precision.

OLT & Fiber Configuration

Class B+: +1.5 to +5 dBm

km

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Passive Optical Network (ODN)

dB

Qty × Loss (Avg 0.5)

dB

Qty × Loss (Avg 0.1)

ONU Rx Power

-10.65 dBm
Signal Status Perfect Signal

Loss Breakdown

Total Loss
-13.65 dB
Fiber Loss (5km)
1.75 dB
Components (Passive)
11.9 dB

GPON Optical Power Budget

Calculating the optical power budget is critical for designing a reliable GPON (Gigabit Passive Optical Network). You must ensure that the total signal loss does not exceed the dynamic range of your optical transceivers.

Typical Loss Values

  • Fiber Cable (G.652): 0.35 dB/km at 1310nm, 0.22 dB/km at 1490nm.
  • Connector (SC/APC): 0.3 - 0.5 dB per mated pair.
  • Mechanical Splice: 0.1 - 0.3 dB.
  • Fusion Splice: < 0.05 dB.