... Single - Mode : PC ≤ 0.2 db ,APC ≤ 0.3 db , Multi - Mode : PC ≤ 0.3 db ) . 2. Return Loss ( ... Single - Mode : PC ≥ 50 db , APC ≥ 50 db , Multi - Mode : PC ≥ 453.Working Temperature:-40~+75°C4.Operating Wavelength ... ) , Multi - Mode ( 50/125 um , 62.5 / 125 um , )3.Specification: single core , dual - core , the 4 core , 6 cores , 12 core . . ... cord is depend on user's requirements Optical Fiber cable