... . Uses the high quality ceramics inserted core and high quality optical fiber, the insertion loss is very small. Suitable for telecommunications, ... working time (MTBF) > 10 million hours;3,Optical fiber interface SC/FC/ST/LC; 4,Storage temperature -10~85°C5,Insertion loss ≤0 ... mouth, another end is LC small round mouthFiber lengths optional Optical fiber Ribbon pigtail(12 cores),cabinet accessories