... quality ceramics inserted core and high quality optical fiber, the insertion loss is very small. Suitable for telecommunications, broadcasting, and the optical ... technology2,End of scars, no dirt echo without loss3,echo loss PC > 50dB, APC>60dB4,The strict environmental test, achieve ... SC/FC/ST/LC; 4,Storage temperature -10~85°C5,Insertion loss ≤0.2dB 6,Work humidity 5 ~ 95% (no condensation);7 ...