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Interlocking Solutions

Control connection device - CCD RA

CCD RA EC-EM/ABTC-EM is intended to execute of two main function groups:

  • linking device functions that provide the connection of the microprocessor-based interlocking system EC-EM/ABTC-EM with neighbor Railroad systems. Herewith CCD RA performs the information connection with devices of the interlocking system EC-EM/ABTC-EM and devices of neighbor systems with support for a large set of formats and data exchange protocols;    

  • hub functions of diagnostic information of the microprocessor-based interlocking system EC-EM/ABTC-EM. Herewith CCD RA executes the collection, processing and storing of  different types of diagnostic information about control facilities condition of the microprocessor-based interlocking system EC-EM/ABTC-EM and neighbor Railroad systems.


During connection with neighbor railroad systems depending on requirements the different versions of CCD RA are used:

version for connection with Railroad systems not security-related. This version is used for connection of the interlocking system EC-EM/ABTC-EM with different Dispatcher control and Dispatcher centralization systems and others;

version for connection with Railroad systems security-related. This version is used for providing of integration the interlocking system EC-EM/ABTC-EM and cab signaling. Herewith “safe” linking also supports the connection functions with Dispatcher control and Dispatcher centralization systems and so on.

Software CCD RA works under control of operation system Linux. Information security and protection against unauthorized access are provided by functions installed into software and arrangements. It is possible to manage the CCD RA network of several stations during equipping by the interlocking system EC-EM/ABTC-EM. The access to the control-diagnostic information about interlocking system EC-EM/ABTC-EM operation of the whole railway line is possible through the Automated technician’s workstation (ATW) interface is provided after the connection to network.