Connector type FC/SC/ST/LC/MU/MT-RJ/ESCON/E2000 Diameter(mm) 0.9,2.0,3.0 Polishing grade SM PC MM PC UPC APC Insertion loss ≤0.3dB ≤0.4dB ≤0.2dB ≤0.3dB Return loss ≥40dB ≥50dB ≥65dB Interchangeability ≤0.2dB Repeatability ≤0.2dB Operation temperature （℃） -40~+85