Advanced Telecommunications Computing Architecture: Difference between revisions

Revision as of 12:50, 1 August 2013

Revision as of 17:55, 20 November 2013

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== Backplane architecture ==

The AdvancedTCA backplane provides point-to-point connections between the boards and does not use a data bus. The backplane definition is divided into three sections; Zone-1, Zone-2, and Zone-3. The connectors in Zone-1 provide redundant -48 −48&nbsp;VDC power and Shelf Management signals to the boards. The connectors in Zone-2 provide the connections to the Base Interface and Fabric Interface. All Fabric connections use point-to-point 100 Ω differential signals. Zone-2 is called "Fabric Agnostic" which means that any Fabric that can use 100 Ω differential signals can be used with an AdvancedTCA backplane.<ref>Understanding backplane, chip-to-chip tech (EETimes) http://www.eetimes.com/industrychallenges/interconnect/showArticle.jhtml?articleID=55800439</ref>

The connectors in Zone-3 are user defined and are usually used to connect a front board to a Rear Transition Module. The Zone-3 area can also hold a special backplane to interconnect boards with signals that are not defined in the AdvancedTCA specification.