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IEEE 802.1AS-2011

Sensitive Applications in Bridged Local Area Networks

Standard by IEEE, 2011

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  • Language: English
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About This Item

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802.1AS-2011 is a technical standard for time synchronization in sensitive applications over bridged local area networks. It addresses how networked devices can maintain a common timing reference, which is important where coordinated operation and consistent data exchange matter. In power, energy, and industrial systems, precise timing can help support control, measurement, and communication performance. As a superseded standard, 802.1AS-2011 remains relevant for identifying legacy requirements and historical compliance needs.

Overview of 802.1AS-2011

This specification defines timing and synchronization behavior for devices connected through bridged Ethernet networks, with a focus on sensitive applications that need predictable coordination. 802.1AS-2011 is commonly associated with environments where multiple components must share accurate time to support synchronized actions and networked control. For procurement, engineering review, or document control, it provides a clear reference for the timing profile expected in these bridged local area network implementations.

Typical use cases

This standard is typically relevant in networked control systems, measurement setups, and other coordinated equipment used in power, energy, and industrial applications. It may apply where switches, controllers, sensors, and endpoint devices must operate from a shared time base across a bridged LAN. That makes 802.1AS-2011 useful for projects involving synchronized data capture, time-aligned control signals, and legacy network designs that depend on stable timing relationships.

Why it matters

In practice, timing standards help reduce ambiguity between devices and improve consistency across distributed systems. Using 802.1AS-2011 as a reference can support compliance reviews, system design checks, and testing against known synchronization requirements. For engineering teams, it helps define how timing should behave across the network, which can lower integration risk and support more reliable operation in sensitive applications. It is also useful when evaluating older equipment or maintaining legacy specifications.

  • Bridged local area network timing
  • Sensitive application synchronization
  • Power, energy, and industrial system context
  • Legacy compliance and design reference
SKU: 2b3aac0edb35

  • Publication Date: 2011

  • Standard Status: Superseded

  • Publisher: IEEE

  • Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems

  • Official IEEE: Doi link
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