Ethernet adoption encourages open protocols

被引：0

作者：

National Instruments, Australia ^{[1
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机构：

来源：

ECN Electron. Compon. News | 2007年 / 10卷 / 26-28期

关键词：

IEEE Standards - Web browsers - Automation - Mechanical clocks - Synchronization;

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摘要：

Engineers and system designers can exchange information around the world using instant messaging, Web browsers, and e-mail protocols based on Ethernet. In addition to delivering data in the global economy, Ethernet is well suited for distributed test and industrial automation systems. New Ethernet standards have increased bandwidth from 10 Mb/s in 1983 to 1 Gb/s in 1998. It will take several years for the new 10GBASE-T standard to reach comparable price points with the currently deployed 1GBASE-T and 100BASE-T standards. Ethernet in industrial automation and test and measurement applications is the relatively high jitter of Ethernet transfers, which limits event synchronization with standard Ethernet to about 10 ms. The final synchronization skew between the local clocks depends on several factors, including the resolution and accuracy of the clocks in each node, IEEE 1588 synchronization rate, and network topology.

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