Amendment 1:2022 to CSA ISO/IEC/IEEE 8802-3:21, Telecommunications and exchange between information technology systems - Requirements for local and metropolitan area networks - Part 3: Standard for Ethernet - Amendment 1: Physical layer specifications and management parameters for 2.5 Gb/s and 5 Gb/s operation over backplane (Adopted amendment 1:2021 to ISO/IEC/IEEE 8802-3:2021)