DIN EN 60825-2:2007 Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCS) (IEC 60825-2:2004 + A1:2006); German version EN 60825-2:2004 + A1:2007
2011DIN EN 60825-2:2011 Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCS) (IEC 60825-2:2004 + A1:2006 + A2:2010); German version EN 60825-2:2004 + A1:2007 + A2:2010
2007DIN EN 60825-2:2007 Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCS) (IEC 60825-2:2004 + A1:2006); German version EN 60825-2:2004 + A1:2007