Features: Complies With IEC 61754-2; RoHS directive compliance; Sleeve material: Zirconia Split Sleeve for SM adapter Phosphorous bronze Split Sleeve for MM adapter; Application: Fiber Optic Transmission Network Cable TV network Optical Fiber Lan Optical fiber testing instrument ODF,rack-mounted and wall-mounted optical fiber wiring unit Specifications: Parameters Singlemode Multimode PC UPC APC PC Insertion Loss(dB) =0.3 =0.2 =0.3 =0.2 Return Loss(dB) =45 =50 =60 =30 Interchange ability =0.2 Repeatability =0.2 Durability >1000matings Operating Temp.(?) -40~75 Storage Temp. (?) -40~75