![SC/UPC Loopback Adapter](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Fiber Loopback is designed to provide a media of return path for a fiber optic signal, typically it is used for fiber optic testing applications or network restorations and it is absolutely an economical solution for a number of fiber optic test applications.