IEEE LTS · 1991 · 17 citations · 3 references
EngineeringElectrical EngineeringComputer NetworksDigital CommunicationSystems ArchitectureCommunication NetworksCommunication SystemsCommunications SubsystemsNetwork ArchitectureOptical Communication SystemsFacsimile TransmissionModular StructureMultiplexing TechniquesNetwork EvolutionOptical TransmissionOptical Transmission SystemsSignalsTransmission System Design
The commercial introduction of optical transmission systems based on the synchronous digital hierarchy (SDH) systems by Nippon Telephone and Telegraph is discussed. SDH-based systems efficiently multiplex signals, from narrowband telephone and facsimile signals to broadband video signals. All digital sources are synchronized regardless of their signal speed. The transmission system design concept, including the synchronous digital transmission system's modular structure that allows its functions to be freely increased and enhanced, and the SDH-based system deployment are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
3
Implementation and application of equipment with network node interface
K. Maki, Hiromi Ueda, Hisao Tsuji et al. · 2003 · 19 citations
Engineering, Computer Engineering, Electrical Engineering +10