Optical Fiber Type Codes



Optical fiber cable type codes (in accordance with VDE)
 
A- Outdoor cable
B Armoring
(BN) Glass Yarn. non metallic armoring, e.g. For rodent protection
D Loose buffer tube, filled
E Single mode fiber
F Filling compound in the cable core for filling of spaces in the cable core
FR Cable with improved burning behaviour
...F... Attenuation coefficient in dB/km and dispersion in ps/(nm.km) at a wavelength of 1310nm
G Multi mode fiber
...H... Attenuation coefficient in dB/km and dispersion in ps/(nm.km) at a wavelength of 1550nm
J- Indoor cable
K Slotted core
N Fiber in central core tube without buffer
Nc Non-corrosive smoke fumes
(L) Laminated Aluminum sheath
LG Stranded in layers
S Metallic elements in the core
Q Dry swellable material in the cable core (dry core)
(SG) Armoring by laminated, smooth, longitudinal overlapped steel tape
(SR) Armoring by laminated, corrugated, longitudinal overlapped steel tape
y Jacket or protective cover of polyvinyl chloride (PVC)
2Y Jacket or protective cover of polyethylene (PE)
2H Jacket or protective cover of Halogen free flame retardant sheath (LSoH)
4Y Jacket or protective cover of polyamide (PA)
(ZM) Metallic anti-buckling and strength members
(ZN) Non-metallic anti-buckling and strength members
(...ZN) Number of non-metallic anti buckling and strength members in the jacket
Example: A-DF 2Y(SR)2Y 4x12 E9/125 (48 core, 4 loose tubes, each consist 12 SM fibers, PE inner sheathed, corrugated steel tape armored, PE outer sheathed Outdoor type optical fiber cable)
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