Industrial communication networks - High availability automation networks - Part 7: Ring-based Redundancy Protocol (RRP) (IEC 65C/634/CDV:2010); English version FprEN 62439-7:2010
Industrial communication networks - High availability automation networks - Part 7: Ring-based Redundancy Protocol (RRP) (IEC 62439-7:2011); English version EN 62439-7:2012— 82 стр.