... stability . 3.Good Exchange Pass RoHS, CE & FCC LC-LC PC/APC/UPC SM Optical path cordFormulate for customer:1.Diameter ... Conductors: 1,2,4,6,8,10,12 etc. Technical Parameters : 1 . Insertion Loss ( Single - Mode : PC ≤ 0.2 db ,APC ≤ 0 ... db ) . 2 . Return Loss ( Single - Mode : PC ≥ 50 db , APC ≥ 50 db , Multi - Mode : PC ≥ 453.Working Temperature: -40~+75°C4.Operating ...