Advanced Telecommunications Computing Architecture: Difference between revisions

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{{technical|date=August 2013}}

'''Advanced Telecommunications Computing Architecture'''<ref>PICMG. "Reference". PICMG 3.0 Revision 2.0 AdvancedTCA Base Specification. http://www.picmg.org</ref> ('''ATCA''' or '''AdvancedTCA''') is the largest specification effort in the history of the [[PICMG|PCI Industrial Computer Manufacturers Group]] (PICMG)]], with more than 100 companies participating. Known as AdvancedTCA, the official specification designation PICMG 3.''x'' (see below) was ratified by the PICMG organization in December 2002.<ref>Pavlat, Joe. "AdvancedTCA turns 10". CompactPCI and AdvancedTCA Systems Vol. 15, Issue 5. OpenSystems Media: 2011. http://advancedtca-systems.com/advancedtca-turns-10/ {{Webarchive|url=https://web.archive.org/web/20110604151015/http://advancedtca-systems.com/advancedtca-turns-10/ |date=2011-06-04 }}</ref> AdvancedTCA is targeted primarily to requirements for "[[carrier grade]]" communications equipment, but has recently expanded its reach into more ruggedized applications geared toward the military/aerospace industries as well.<ref>McDevitt, Joe. "PICMG to Expand Market and Applications for AdvancedTCA". PICMG - Resources. [http://www.picmg.org/v2internal/resourcepage2.cfm?id=2] {{Webarchive|url=https://web.archive.org/web/20100523160054/http://www.picmg.org/v2internal/resourcepage2.cfm?id=2 |date=2010-05-23 }}</ref> This series of specifications incorporates the latest trends in high speed interconnect technologies, next-generation processors, and improved [[Reliability, availability and serviceability (computer hardware)|Reliability, Availability and Serviceability]] (RAS).

== Mechanical specifications ==

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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&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>{{cite web|last1=Bolaria|first1=Jag|title=Understanding backplane, chip-to-chip tech (EETimes) |url=http://www.eetimes.com/industrychallenges/interconnect/showArticledocument.jhtmlasp?articleIDdoc_id=558004391266762|website=EETimes|accessdate=9 August 2017|date=2004-12-20}}</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.

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== External links ==

*[https://web.archive.org/web/20110622211233/http://www.advancedtca.org/ Official AdvancedTCA Site]

*[http://www.picmg.org Official PICMG Site]

*[http://www.coreipm.com coreIPM Project: Free & Open Source Software for ATCA Platform Management] {{Webarchive|url=https://web.archive.org/web/20200818110857/http://www.coreipm.com/ |date=2020-08-18 }}

*[http://advancedtca-systems.com/ AdvancedTCA Systems Magazine] {{Webarchive|url=https://web.archive.org/web/20060205100829/http://advancedtca-systems.com/ |date=2006-02-05 }}

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