Information processing systems. Fibre Distributed Data Interface (FDDI) - Hybrid Ring Control (HRC) Ingestion-build-82396 BS EN 574 describes the

BS EN 574 describes the main characteristics of two-hand control devices for the achievement of safety and sets out combinations of functional characteristics for three types

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It includes specific requirements for toys intended for children under 36 months

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Information processing systems. Fibre Distributed Data Interface (FDDI) - Hybrid Ring Control (HRC) Ingestion-build-82396 BS EN 574 describes the1 Scope This part of ISO IEC 9314 specifies a hybrid ring control (HRC) protocol which provides a mode of operation in which both packet switched and isochronous data are transmitted within the same special frame structure, called a cycle. HRC is designed to operate with the existing media access control (MAC), physical layer (PHY), and physical medium dependent (PMD) layers of the FDDI protocol. The HRC is composed of the hybrid multiplexer (H MUX)