4 PCS Single Mode Loopback Plug Tester SC-UPC Fiber Optical Duplex Cable Adapter 9/125

?Product Description? The fiber loopback is mainly used to test the signal return in the system or network system. It can detect potential abnormalities in the network link by the signal return( the pairwise connected TX transmitting end-face send the signals back to the RX receiving end-face), and achieve the test and evaluation of individual single elements or interfaces on the fiber network. ?Product Detail? Connector type:SC-UPC Connector color: Blue Fiber type: single mode Cacket material: PVC Optical cable color: Yellow Insertion loss:? 0.3db Return loss:?50db Repeatability: ?0.2db Interchangeability: ?0.2db Operating temperature: -20~70? Storage temperature: -40~80? Packing Quantity: 4 PCS