RapidIO.org Announces Public Release of 4.1 Specification

Today, Rapidio.org, the open standards body that promotes and develops specifications for the RapidIO interconnect architecture announced the public release of RapidIO specification Revision 4.1.  In Revision 4.1,  the space extensions and device classes added in Revision 3.1 have been renamed to High Availability / Redundant System Hardware (HARSH) to clarify the application to any high reliability system based on the RapidIO protocol for platforms such as aircraft, power plants, data centers, and autonomous vehicles.

“From the outset, the RapidIO protocol has delivered a high performance, low latency, peer-to-peer interconnect fabric,” said Rick O’Connor, Executive Director of the RapidIO Trade Association.  “High reliability and availability are key differentiators compared to other popular serial protocols as exemplified by the RapidIO High Availability Redundant System Hardware (HARSH) features and profiles.  When combined with ongoing technology-based performance upgrades, the RapidIO protocol offers a combination of unique features not offered in any other interconnect fabric technology.”

The  4.1 specification also includes an optional new feature called Port Aggregation Groups.  This feature supports the ability to add multiple ports between the same two link partners that are treated as if they are a single port.  It supports both increased throughput without increased per lane baud rate and autonomous failover in case of loss of one of the aggregated ports.  The autonomous failover capability adds to the list of HARSH extensions and reaffirms the commitment of the RapidIO Trade Association to provide a combination of both high performance and high reliability for systems operating under the most stringent of conditions.


About RapidIO.org –

RapidIO®, the unified fabric for performance critical computing, addresses needs in Data Center & HPC, Communications Infrastructure, Industrial Automation and Military & Aerospace markets by offering high reliability, increased bandwidth, and low latency in an intra-system unified fabric. RapidIO provides chip-to-chip, board-to-board and shelf to shelf peer to peer connectivity at performance levels scaling to 100s of Gigabits per second and beyond.

RapidIO.org, a non-profit corporation controlled by its members, directs the future development and drives the adoption of RapidIO. Members of RapidIO.org have access to and participate in the development RapidIO interconnect architecture specifications, reference designs and bus functional models. Follow RapidIO.org on, LinkedInTwitterYouTube and Google+.