9
6070-2001
50/125 µm
3.0 dB/km
1.0 dB/km
62.5/125 µm
3.5 dB/km
1.2 dB/km
100/140 µm
4.0 dB/km
9/125 µm
0.5 dB/km
Fibre
Attenuation
at 820 nm
Attenuation
at 1300 nm
Attenuation
at single mode (1300 nm)
Attenuation in fibre cable
The values below can differ depending on quality and manufacturer of the fibre-optic
cable.
Attenuation in connectors
Attenuation in splice
0.2–0.4 dB
Fusion
0.1 dB
Mecanical
0.2 dB
50/125
16.6 dB
14.6 dB
62.5/125
18.6 dB
15.1 dB
100/140
25.9 dB
9/125
12.3 dB
50/125
10.7 dB
8.1 dB
62.5/125
14.5 dB
11.6 dB
100/140
20.6 dB
9/125
6.3 dB
Unit
820 nm
1300 nm
single mode
Unit
820 nm
1300 nm
single mode
Min. budget
Typ. budget
Power budget
”Min. budget” states the minimum guaranteed power budget. Experience shows however that the
typical value is in the range of the indicated ”Typ. budget”.
Fibre
Fibre
