A length of fiber optic cable that has been terminated with a connector, pigtail or other component. There are many types of fiber optic cable connectors used in cable Assemblies: ST Connectors: slotted bayonet type connector with long ferrule. Common connector for mulitmode fibers. FC connectors: screw on type connector. Popular with single mode fibers. SC Connectors: push/pull connector that can also be used with duplex fiber constuction. LC connectors: Much like the ST connector but with a ferrule that is half the size. MT-RJ connectors: connector configured for duplex fibers with both fibers in one ferrule. MU connectors: Much like the SC connector but with a ferrule about half the size.