Interlocking - Alstom

VPI ® II Vital and Non-Vital Interlocking ControlENHANCED FEATURES> System ArchitectureWith increased processing capacity and network connectivity,VPI II provides industry leading flexibility in interlockingapplication and partitioning. Options allow for distributed orcentralized traffic control through networked main processingand I/O and point of issue diagnosis for system faults. Moresystem wide control can be performed in a single systemto meet the demands of the application. This reduces theoverall number of systems required, and improves overallperformance as there are fewer systems exchanging timecritical interlocking control and status parameters.> System Condition MonitoringThe newest Maintenance Management System allows easyaccess to the system’s operational status, troubleshootingof failed components, and configuration management ofhardware and software. All “smart” system componentsthat pass information over the integrated network are readilyavailable to maintenance, engineering and/or dispatchcenters for tracking system operation.> Local or Centralized MMSSignificantly improves mean time to restore throughadvanced diagnostics, streamlined field tests, and utilitiesfor extensive site data management such as event logs andconfiguration information.> Upgraded Central ProcessorExtended capacity for larger interlockings which results indecreased train routing latencies.> Network CapabilityThe VPI II has a flexible system for partitioning throughefficient communication of signaling control, fault diagnosisand vital and non-vital health monitoring information.> LED Signal DriveUpgraded adjustment and monitoring features improvesetup and maintenance of LED Signal Aspects.InterlockingFeature ComparisonFeature VPI VPI IIScalable Application (up to three expansions chassis) √ √Application represented in Relay, Ladder, or Boolean format √ √Vital and non-vital systems within the same chassis √ √In-Circuit programming of System and Application Software (No EPROMS)√Network Connectivity for Vital system√Network Connectivity for Non-Vital system√Local and remote Diagnostics via Maintenance Management System (MMS)√Serial and USB user interface√Integrated Power SupplyPrinted Circuit Board Health IndicatorEmbedded Circuit Board IdentificationOptional Integrated DC Coded Track CircuitUniversal Vital I/O boards (no board resident configuration)Fully redundant systems within the same chassisNumber of vital system boards required 3 3©2011 Alstom Signaling Inc. www.alstomsignalingsolutions.com 41