Home and Building Electronic Systems (HBES) - Part 5-1: Media and media dependent layers - Power line for HBES Class 1; English version EN 50090-5-1:2020
Edition 2021-02

Home and Building Electronic Systems (HBES) - Part 5-2: Media and media dependent layers - Network based on HBES Class 1, Twisted Pair; English version EN 50090-5-2:2020
Edition 2021-02

Home and Building Electronic Systems (HBES) - Part 3-4: Secure Application Layer, Secure Service, Secure configuration and security Resources; German version EN 50090-3-4:2017
Edition 2018-04

Home and Building Electronic Systems (HBES) - Part 4-2: Media independent layers - Transport layer, network layer and general parts of data link layer for HBES Class 1; German version EN 50090-4-2:2004, text English
Edition 2004-07