Computer-based interlocking: Difference between revisions

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{{Short description|Railway signal interlocking using computers}}

'''Computer-based Based Interlockinginterlocking''' is the generic term for [[railway signal]] [[interlocking]] implemented with computers[[computer]]s, rather than using older technologies such as [[relays]] or [[mechanics]].

== General ==

CBIs are mostly implemented in two parts; a section that implements the safety and failsafe requirements, and a second section that implements "non-vital" controls and indications.

The European Union is working towards an EU standard within this area, called [[ERTMS]].

== Brands ==

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* [[Solid State Interlocking|SSI]] (Solid State Interlocking) - [[British Rail|BR]], [[Invensys]], [[GEC-General Signal]]

* [[MircrolokMicrolok II]]

* [[Mircrolok II]]

* [[Smartlock]]

* Westlock

* Germany - Alister CBI from Funkwerk IT <ref>[[Railway Gazette International]] of July 2012, page 18</ref>

== Interface between different brands ==

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== Competition Rules ==

Since only some of the major signalling organisations make CBI equipment, it was agreed that to prevent other players being left out in the cold, CBI equipment would be made available to those players at cost.{{citation needed|date=February 2019}}

== References ==

{{reflistReflist}}

{{Authority control}}

[[Category:Interlocking systems]]

[[Category:Rail infrastructure]]