The optical network unit for ultra-high-speed fibre communication is used to connect outdoor optical fibres to an indoor network. Regular fins form the surface of the unit. This is the first time that a DML is used as both optical. The Official Document System (ODS) is an online database of UN documents that was first launched in 1993 and updated in 2016. ODS has full-text, born-digital UN documents published from 1993 onward, including documents of the Security Council, the General Assembly, the Economic and Social Council. SERIES G: Transmission systems and media, digital systems and networks Digital sections and digital line system – Optical line systems for local and access networks ONU management and control interface (OMCI) specification Amendment 2 ITU-T G-SERIES RECOMMENDATIONS Transmission systems and. Mitsubishi Electric Corporation, Integrated Design Center, Toshihisa Ogura, Atsuki Tachibana, Kamakura, Japan The optical network unit for ultra-high-speed fibre communication is used to connect outdoor optical fibres to an indoor network. The method comprises receiving an encoded DS PHY frame from an OLT, the encoded DS PHY frame comprises a codeword, the codeword comprises a SFC field and a payload, and the SFC field and the payload are encoded with a same FEC; decoding the codeword using. Optical Distribution Network (ODN) - The physical fibre and optical devices that distribute signals to users in a telecommunications network. Optical Network Termination (ONT).