This Detail Specification applies to class Ia@ graded-index@ 50/125 ?? multimode optical fiber used as a component in the manufacture of fiber-optic cable. Applications include@ but are not restricted to@ the following: support for short reach@ high bit-rate systems in telephony@ distribution and local networks@ carrying data@ voice and/or video services and on-premises intrabuilding and interbuilding fiber installations@ including LANs@ PBXs@ video@ various multiplexing uses@ outside telephone cable plant use@ and miscellaneous related uses.