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As more Internet Protocol (IP)-enabled electric grids become operational — smart grids — a number of advanced services, such as telepresence conferencing, video surveillance, and office automation, also become possible.
However, traditional Time Division Multiplexing (TDM) communication networks cannot effectively carry such advanced services. Therefore, the transformation of communication networks over electric power grids requires high bandwidth and reliability, simultaneous transmission of TDM and IP services, and complex communication interfaces. Ultimately, electric power industry operators need to build combined TDM/IP communications infrastructure that can provide a variety of services and safeguard against multiple points of failure.
Huawei’s solution combines TDM with two IP-based networking methods: Hybrid Multi-Service Transmission Platform (MSTP) IP, and Optical Transport Network/ Wavelength Division Multiplexing (OTN/WDM) IP. An Automatically Switched Optical Network (ASON) integrates these three networking methods. ASON is an intelligent optical network that efficiently interoperates with legacy networks and automatically manages signaling and routing. (Previously, cross-connections needed to be configured among network elements, such as an optical switch, to create new traffic paths). ASON also provides defense against multiple points of failure.
Securely isolates key services and ensures efficient, reliable transmission.
Provides lossless relay protection, achieving high reliability and automatic switchover.
Delivers power communication over 3.4 km UHV without relay.