IEC 61162-460:2018 is also available as IEC 61162-460:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61162-460:2018 is an add-on to IEC 61162-450 where higher safety and security standards are needed, for example due to higher exposure to external threats or to improve network integrity. This document provides requirements and test methods for equipment to be used in an IEC 61162-460 compliant network as well as requirements for the network itself and requirements for interconnection from the network to other networks. This document also contains requirements for a redundant IEC 61162-460 compliant network. This document does not introduce new application level protocol requirements to those that are defined in IEC 61162-450. This second edition of IEC 61162-460 cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:

a) 460-Switches and 460-Forwarders are required to implement IGMP snooping; b) connection between secure and non-secure areas requires a 460-Forwarder as an isolation element; c) SFI collision detection added as function of network monitoring; d) 460-Gateway and 460-Wireless gateway are no longer required to report to the network monitoring; e) all alerts from network monitoring have standardized alert identifiers.