with Standard YD/T 1155-2001 as well as IEC 60794-1.Optical Characteristics:G.652G.65550/125 m62.5/125 mAttenuation(+20 )@850nm3.0 dB/km3.0 dB/km@1300nm1.0 dB/km1.0 dB/km@1310nm0.36 dB/km0.40 dB/km@1550nm0.22 dB/km0.23dB/kmBandwidth (Class A)@850nm500 MHz km200 MHz km@1300nm1000 MHz km600 MHz kmNumerical Aperture0.200 0.015NA0.275 0.015NACable Cut-off Wavelength ?cc1260nm1480nmTechnical Parameters:Cable TypeFiber CountCable Diameter?mmCable Weight kg/kmSupporting Wire SpecConnection DiameterT