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Fibre Optic Attenuation and Loss Values

Maximum Cable Attenuation (dB/km) as per AS/NZS 3080 (Table 26 P49)

MMF 50/125µm MMF 62.5/125µm SMF 9/125µm
850nm 1300nm 850nm 1300nm 1310nm 1550nm
3.5 1.5 3.5 1.5 1.0 1.0


Maximum Fusion Splice Loss (dB) as per AS/NZS 3080 (Table 46 P63)

MMF SMF
0.3 0.3


Maximum Channel Attenuation (dB) as per AS/NZS 3080 (Table 23 P44)

Channel MMF SMF
850nm 1300nm 1310nm 1550nm
OF-300 2.55 1.95 1.80 1.80
OF-500 3.25 2.25 2.00 2.00
OF-2000 8.50 4.50 3.50 3.50


ISO IEC 11801 maximum channel insertion loss for IEEE 802.3 10G Base-SR/SW applications on OM3 (50/125µm) fibre, OF-300 channel (Table F.3 P110) and AS/NZS 3080 (Table F.3 P98)

dB Wavelength
2.55 850nm

Note: Channel loss includes patching cables


Maximum Connector Insertion Loss (dB) as per AS/NZS ISO/IEC 14763.3 (P10 & P21)

Reference → Reference Reference → Random Random → Random
MMF SMF MMF SMF MMF SMF
≤0.10 ≤0.20 ≤0.30 ≤0.50 ≤0.75 ≤0.75

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