Functional Safety and IEC 61508); IEC 60825-12:2004 EN_D 73fbd8a8 Safety of laser products - Part 12: Safety of free space optical communication systems used for transmission of information; IEC 60825-12:2019 EN-FR a20acd70 Safety of laser products - Part 12: Safety of free space optical communication systems used for transmission of information; IEC 60825-12:2019 RLV EN c9bef8b5 Safety of laser products - Part 12: Safety of free space optical communication systems used for transmission of information; IEC 60825-12:2022 EN-FR b45bdcaa Safety of laser products - Part 12: Safety of free space optical communication systems used for transmission of information; IEC 62385:2007 EN-FR 23ce5378 Nuclear power plants - Instrumentation and control important to safety - Methods for assessing the performance of safety system instrument channels;">