According to the diversity of optical fiber connectors, there are many types of interfaces of optical fiber adapters. According to the same connectors on both ends of the optical adapter, its interfaces can be divided into six types: LC-LC, SC-SC, ST-ST, FC-FC, MPO-MPO, and E2000-E2000.
According to the different connectors on both ends of the optical fiber adapter, its interfaces can be divided into six types: LC-SC, LC-ST, LC-FC, SC-FT, SC-FC, and FC-ST. The adapters with different connectors on both ends are usually called hybrid adapters. In addition, among all interface types, the application of optical fiber adapters for SC and FC interfaces is relatively more extensive.