This part specifies the functions and performance of reconfigurable optical add-drop multiplexing (ROADM) equipment, including the reference model and reference points of ROADM equipment, basic requirements for ROADM equipment, optical interface parameter requirements for ROADM equipment, wavelength converters and sub- Rate multiplexing/demultiplexing requirements, monitoring channel requirements, ROADM equipment management requirements, etc. This section applies to reconfigurable optical add-drop multiplexing (ROADM) equipment in wavelength division multiplexing (WDM) systems.
ITU-T G.664 Optical safety procedures and requirements for optical transmission systems (Study Group 15)*, 2012-02-01 Update
ITU-T G.671 Transmission characteristics of optical components and subsystems*, 2019-08-01 Update
ITU-T G.680 Physical transfer functions of optical network elements Study Group 15
ITU-T G.691 Optical interfaces for single channel STM-64 and other SDH systems with optical amplifiers
ITU-T G.692 Optical Interfaces for Multichannel Systems with Optical Amplifiers - Series G: Transmission Systems and Media Digital Systems and Networks - Transmission Media Characteristics - Characteristics of Optical Components and Sub-Systems Study Group 15; 40 pp
ITU-T G.694.1 Spectral grids for WDM applications: DWDM frequency grid*, 2020-10-01 Update
ITU-T G.709 Interfaces for the optical transport network (Study Group 15)*, 2016-06-01 Update
ITU-T G.808.1 Generic protection switching - Linear trail and subnetwork protection*, 2014-05-01 Update
ITU-T G.873.1 Optical transport network: Linear protection (Study Group 15)*, 2017-10-01 Update
ITU-T G.873.2 ODUk shared ring protection (Study Group 15)*, 2015-08-01 Update
ITU-T G.957 Optical interfaces for equipments and systems relating to the synchronous digital hierarchy (Study Group 15)
ITU-T G.959.1 Optical transport network physical layer interfaces (Study Group 15)*, 2018-07-01 Update
ITU-T G.975 Forward Error Correction for Submarine Systems Series G: Transmission Systems and Media Digital Systems and Networks Digital Sections and Digital Line System - Optical Fibre Submarine Cable Systems Study Group 15; 24 pgs*, 2024-04-19 Update
ITU-T G.975.1 Forward error correction for high bit-rate DWDM submarine systems
YD/T 1060-2000 Technical requirements of optical wavelength divison multiplexing (WDM) system——32×2.5Gbit/s part
YD/T 1205-2002 Techincal requirements for metropolitan optical transport network WDN ring
YD/T 1259-2003 Technical specification for optical safe procedure for Wavelength Division Multiplexing (WDM) system
YD/T 1274-2003 Technical specification for optical Wavelength Divison Multiplexing (WDM) system -160×10Gb/s、80×10Gb/s part
YD/T 1960-2009 Technical Requirementa for Ultra Long Haul N×10Gbit/s Wavelength Division Multiplexing(WDM)Systems
YDN 120-1999 General technical requirement for optical wavelength-division multiplexing system (temporary regulations) (internal standard)