DIN EN 62496-2-1:2012 Optical circuit boards - Part 2-1: Measurements - Optical attenuation and isolation (IEC 62496-2-1:2011); German version EN 62496-2-1:2011
2012DIN EN 62496-2-1:2012-06 Optical circuit boards - Part 2-1: Measurements - Optical attenuation and isolation (IEC 62496-2-1:2011); German version EN 62496-2-1:2011
2012DIN EN 62496-2-1:2012 Optical circuit boards - Part 2-1: Measurements - Optical attenuation and isolation (IEC 62496-2-1:2011); German version EN 62496-2-1:2011