Formula:

Total link Loss (dB) ≤ (L x i) + (n x S) + (m x C)

Dimana: L = optical length (KM)

i = attenuation index n = jumlah total splice dlm link tsb

S = splice loss m = jumlah total connector

C = connector loss

Perhitungan u/ section Serang – Grha XL: L = 116 Km optical length i = 0.25 dB/Km at 1550 nm n = 50 total splice S = 0.1 dB/Km m = 2 C = 0.5 dB/Km Total link Loss = (116x0.25) + (50x0.1) + (2x0.5) = 35 dB