Authored by: Michael Paulitsch , Brendan Hall , Kevin R. Driscoll

Industrial Communication Technology Handbook

Print publication date:  August  2014
Online publication date:  August  2014

Print ISBN: 9781482207323
eBook ISBN: 9781482207330
Adobe ISBN:


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The BRAIN (Braided-Ring Availability Integrity Network) is a novel communication architecture supporting fault-tolerant time-triggered communication. As the name suggests, the BRAIN is built upon a braided-ring topology. This topology augments the standard ring topology with increased connectivity. In addition to the direct link connections between a node and its immediate neighboring nodes (as is used in simple rings), a braided-ring node also is connected to its neighbor’s neighbor via a link called the braid or skip link (see Figure 67.1). The BRAIN utilizes the additional connectivity to achieve both high-coverage integrity and availability concurrently. This is in contrast to previous braided rings, which use these additional links only for availability. The BRAIN can use almost any existing local area network (LAN) technology to implement its communication links, including any of the IEEE 802.3 Ethernet variants.

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