Cross References:IEC 60050-191IEC 62439-1:2010EN 62439-1:2010ISO/IEC 8802-3:2000IEC 60050-191IEC 62439-1:2010ISO/IEC 8802-3:2000IEC 61158IEC 61158-4-21:2010ISO/IEC 9314-3:1990IEEE 802.1D:2004ANSI X3.230:1994ANSI X3.263:1995All current amendments available at time of purchase are included with the purchase of this document.