JIS C 5962 Generic specification of fiber optic connector*, 2023-05-22 Update
JIS C 5965-3-1 Fiber optic connector optical interfaces -- Part 3-1: Optical interface, 2.5 mm and 1.25 mm diameter cylindrical full zirconia PC ferrule, single mode fiber
JIS C 5965-3-2 Fiber optic connector optical interfaces -- Part 3-2: Optical interface, 2.5 mm and 1.25 mm diameter cylindrical full zirconia ferrules for 8 degrees angled-PC single mode fibers
JIS C 5964-6:2014 history
2014JIS C 5964-6:2014 Fiber optic connector interfaces.Part 6: Type MU connector family (F14 Type)