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APPENDIX
Optical transmission systems
Fibre Optic • Transmission performance overview
Fibre optic technology – General
POF – Polymer Optical Fibre PCF – Plastic Cladded Fibre GOF – Glass Optical Fibre
Fibre type/
wavelength max. attenuation [dB/km] max. transmission length [m] Colour
650 nm 850 nm 1300 nm 1550 nm 650 nm 850 nm 1300 nm 1550 nm
POF 980 µm 160 100 MBit/s (PN): 50
PCF 200 µm 10.0 8.0 100 MBit/s (PN): 100
GOF MM
62.5 µm OM1 3.5 (3.0) 1.5 (0.7)
100 Mbit/s: 550
1 Gbit/s: 275
10 Gbit/s: 33
100 Mbit/s: 2.000
1 Gbit/s: 550
10 Gbit/s: 300
Orange
GOF MM
50 µm OM2 3.5 (2.5) 1.5 (0.7)
100 Mbit/s: 550
1 Gbit/s: 550
10 Gbit/s: 82
100 Mbit/s: 2.000
1 Gbit/s: 550
10 Gbit/s: 300
Orange
GOF MM
50 µm OM3 3.5 (2.5) 1.5 (0.7)
1 Gbit/s: 1.000
10 Gbit/s: 300
40 Gbit/s: 100
100 Gbit/s: 100
1 Gbit/s: 550
10 Gbit/s: 300 Aqua
GOF MM
50 µm OM4 3.5 (2.5) 1.5 (0.7)
1 Gbit/s: 1.100
10 Gbit/s: 550
40 Gbit/s: 150
100 Gbit/s: 150
1 Gbit/s: 550
10 Gbit/s: 300 Violet
GOF SM 9 µm
OS2 (G652.D) 0.40 (0.35) 0.40 (0.21) 40 GBit/s: 10.000 40 GBit/s: 40.000 Yellow
Benefits of using fibre optic cables
• Insensitivity to electromagnetic
interference
• Electrical isolation of connected devices
• Low attenuation values
• Large transmission distances
and high bandwidths
• Lightweight design
• Compact dimensions
• Can be installed in explosive
environments
• High level of interception protection
Core
9, 50 or 62.5 μm
Cladding
125 μm
Buffer coating
250 μm
Core
980 μm
Cladding
1000 μm
Buffer coating
2200 μm
Core
200 μm
Cladding
230 μm
Coating (Tefzelbuffer)
500 μm
Photographs are not to scale and do not represent detailed images of the respective products.
For specific cable parameters see product pages or technical data sheets.
The optical transmission of signals in fibre
optic cables functions according to the
principle of “total reflection”. The reflection
is attained by surrounding a light-conduct-
ing core with a sheath that is optically
thinner – the light is totally reflected by the
boundary surface of the sheath, enabling it
to be guided through the fibre optic cable.
At a time when the demand for fast and
secure communication networks is con-
stantly growing, fibre optic cables are now
an indispensable and irreplaceable com-
munication medium.
• P980/1000
A distinction is made between
the following application cases
• SIMPLEX (one buffered fibre)
• DUPLEX (two buffered fibres)
• K200/230
• PCF – Plastic Cladded Fibre
• Also known as HCS
(Hard Cladded Silica Optical Fibre)
There are the following
different types of fibres:
• Singlemode (SM) fibre, E9/125 OS2
• Multimode (MM) fibre, G62.5/125 OM1,
G50/125 OM2 to OM4