This paper illustrates the salient features and the technical structure of the digital circuit multiplication equipment (DCME) specified by INTELSAT. First, an overview of the basic DCME requirements is presented and the network applications of the DCME are discussed. Then a systematic and detailed description of the body of the technical specification is provided. Finally, the complementary activities that followed the completion of the specification are briefly addressed.
This paper presents a conceptual description of a number of possible satellite network architectures for integration into and between the emerging narrowband 64 kb/s based integrated services digital networks (ISDNs). The discussion, which focuses on functional and architectural aspects of networkintegrated satellite systems, is based on two underlying themes. First, the satellite system, as a strict digital transmission system in international ISDN networks, must be virtually ISDN service transparent (i.e. it must not cause any unintended degradation to the transported signals and communication protocols). Secondly, the inherent features of satellite systems are exploited to offer additional functional network support to the ISDN network capabilities for select ISDN services.
SERVICESISDN provides a wide range of bearer services and teleservices. Packet mode bearer services, frame
This paper discusses functional and architectural aspects and suitable networks scenarios for the integration of international fixed satellite systems, such as the INTELSAT system, in and between digital networks implementing the new CCITT synchronous digital hierarchy (SDH). The paper presents SDH transmission network functional requirements, and combines them with current and anticipated future FSS operational requirements. It is shown that integration permits the use of SDH functions and features for enhanced network service provisioning by FSS in the international network fabric, and leads to new FSS system design criteria.
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