Industrial communication networks. Fieldbus specifications - Data-link layer protocol specification. Type 24 elements1 Scope 1. 1 General The data link layer provides basic time critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all participating data link entities a) in a synchronously starting cyclic manner, according to a pre established schedule, or b) in an acyclic manner, as requested by each of those data link entities. Thus this protocol can be characterized as one which

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BS 6160-3 applies specifically to mobile radio receivers having audio-frequency bandwidths generally not exceeding 10 kHz for the reception of voice and other types of signals

and vehicles for the transport of such substances

These principles and requirements are clearly recognizable from the UK’s existing standards:

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Relationship to Other IEEE Standards

This includes all equipment from and including the well head

ISO 898‑1

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causing a huge issue in commuting from one place to another

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