I work with fiber optics, and ETpro is correct regarding the SC connectors. There is no adapter for connecting SC to anything other than another SC that I am aware of, except for light meters and OTDRs, and that kind of thing, though there are patch cords with different connections on either side.
However, I also use a module to connect wires, which is called an SC connector. There are probably a lot of different things with the SC label. Maybe you can tell us a little more.