BS EN 62439-1:2010+A2:2017适用于基于 ISO/IEC 8802-3（IEEE 802.3）（以太网）技术。IEC 62439系列的本部分规定了IEC 62439系列其他部分的通用元素和定义；一致性测试规范（规范性）；网络特征分类方案（信息性）；估算网络可用性的方法（信息性）；确定性恢复的配置规则、计算和测量方法 时间在RSTP。交叉引用:IEC 60050-191:1990EN 61158-6-10IEC 61158IETF RFC 791IEC 61158-6-10IEEE 802.1QIEEE 802.1D:2004EN 61158IEC 8802-3:2000TR 61158-6IEC 62439-3IEC 62439-2IEC 11801:2002IEC 61158IEC 9646IEEE 802.1QIEC 62439-7IEC 62439-5IEC 2382IEC 62439-6TR 61158-1IEC 62439-4IEC 611784- 2:2007IEC 61918:2007IEC 10731IEC 15802-3ISO/IEC 11801:2002/Amd 1:2008取代了BS EN 62439-1:2010+A1:2012，该标准仍然有效，包括以下内容:修正案，2018年3月；修正案，2012年11月

BS EN 62439-1:2010+A2:2017 is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology.This part of the IEC 62439 series specifiesthe common elements and definitions for other parts of the IEC 62439 series;the conformance test specification (normative);a classification scheme for network characteristics (informative);a methodology for estimating network availability (informative);the configuration rules, calculation and measurement method for a deterministic recovery time in RSTP.Cross References:IEC 60050-191:1990EN 61158-6-10IEC 61158IETF RFC 791IEC 61158-6-10IEEE 802.1QIEEE 802.1D:2004EN 61158IEC 8802-3:2000TR 61158-6IEC 62439-3IEC 62439-2IEC 11801:2002IEC 61158IEC 9646IEEE 802.1QIEC 62439-7IEC 62439-5IEC 2382IEC 62439-6TR 61158-1IEC 62439-4IEC 61784-2:2007IEC 61918:2007IEC 10731IEC 15802-3ISO/IEC 11801:2002/Amd 1:2008Replaces BS EN 62439-1:2010+A1:2012 which remains currentIncorporates the following:Amendment, March 2018; Amendment, November 2012