The FDDI connector features a sliding keyway which is integrated into the connector body. The keyway is indexed to achieve the prescribed FDDI keying positions. Key positions A and B are used with dual attach stations. M and S keying positions are used when a network concentrator is connected to a single attached station. M key is inserted at the concentrator and the S key at the station end. The type S or “slave” key position will mate with any connector regardless of key style.