This International Standard defines the standard interface dimensions for the type LC family of connectors.
BS EN 61754-20:2002 history
2022BS EN 61754-20:2012+A1:2022 Fibre optic interconnecting devices and passive components. Fibre optic connector interfaces - Type LC connector family
2012BS EN 61754-20:2012 Fibre optic interconnecting devices and passive components. Fibre optic connector interfaces. Type LC connector family
2002BS EN 61754-20:2002 Fibre optic connector interfaces - Type LC connector family