Item Single mode Multi mode Insertion loss PC 0.3dB APC 0.2dB PC 0.3dB Return loss PC 45dB APC 60dB PC 25dB Insert-pull test ( 1000 times ) 0.3dB Operating temperature -40 ~ + 75 Ceramic ferrule spec 125.5um concentricity deviations: 1um 127um concentricity deviations: 3um Suitable fiber PC/ APC( 9/ 125um) PC( 50/ 125um, 62.5/ 125um