OTN—or Optical Transport Network—is a telecommunications industry standard protocol— defined in various ITU Recommendations, such as G.709 and G.798 —that provides an efficient way to transport, switch, and multiplex different services onto high-capacity wavelengths across the optical network.

Open Transport Network (OTN) is a flexible private communication network based on fiber optic technology, manufactured by OTN Systems. It is a networking technology used in vast, private networks with a great diversity of communication requirements, such as subway systems, pipelines, the mining industry, tunnels and the like ( ref ).

otn的层次结构及信息流之间的关系： 在电层，OTN借鉴了SDH的映射、复用、交叉、嵌入式开销等概念； 在光层，OTN借鉴了传统WDM的技术体系并有所发展；

Described in the ITU-T Recommendation G.709 (2003), OTN adds operations, administration, maintenance, and provisioning (OAM&P) functionality to optical carriers, specifically in a multi-wavelength system such as dense wavelength division multiplexing (DWDM).

2021年7月18日 · G.709定义了两种光传送模块： 完全功能光传送模块 (OTM—n.m) 和 简化功能光传送模块 (OTM-0.m，OTM-nr.m)。 完全标准化的OTUk用于OTM IrDI和laDI，功能标准化OTUkV用于OTM laDl 。 关联开销是必须和净荷的信息结构一起传输的，如OTUk，ODUk，OPUk。 非关联开销在OSC上传输，包括光传输段开销、光复用段开销和光通道非关联开销。 通道监视开销（PM）：位于ODUk帧结构的第3行第10~12列和第2行第3列。 串 …

2023年6月19日 · 【OTN——光传送网】 Optical Transport Network (OTN) 是新一代的骨干传送网络，尤其适用于大颗粒GE、10GE、STM-N业务的高效传送和调度。 OTN 的优势在于其大容量的ODUk交叉功能，解决了传统SDH效率低和WDM灵活性不足...

Modular OTN network nodes facilitate maintenance and system modifications. Integrated network based video surveillance & recording solution exceeding 1000 cameras. Geographical Extensiveness of the Network: The OTN network allows spanning very large distances (up to 1000 km (622 miles) or more).

OTN（光传送网，OpticalTransportNetwork），是以波分复用技术为基础、在光层组织网络的传送网，是下一代的骨干传送网。OTN通过G.872、G.709、G.798等一系列 ITU-T的建议所规范的新一代“数字传送体系”和“光

2025年1月20日 · 光传送网（Optical Transport Network, OTN）是基于波分复用（WDM）技术的下一代传输网络，旨在提供大容量、长距离、高可靠性的数据传输解决方案。OTN不仅继承了SDH和MSTP的优点，还在多个方面进行了显著改进，以满足现代通信网络对带宽、灵活性和可靠 …

The OTN data system is an aggregator of telemetry data made up of interconnected Node Databases and data processing tools. These work together to connect researchers with relevant and reliable data. At the heart of this system are Nodes and their OTN-style Databases.