The Trackguard Simis D fail-safe microcomputer interlocking from Siemens for German Railways is a high-availability, high-reliability and, due to its modular hardware and software, versatile electronic interlocking solution.
Both simple regional and line interlockings and complex junction interlockings can be implemented with this system.
A construction site interlocking designed for confined spaces has also already been put into operation with Trackguard Simis D in the German rail network.
Trackguard Simis D has continuously been functionally extended and improved:
Trackguard Simis C projects can be extended by Trackguard Simis D electronic interlockings
operation via open networks (communication of the electronic interlockings among each other)
various connection options with Trackguard Simis DTS
new interface for temporary locally controlled areas
new interface for right-away signals
combination with the new Clearguard AC 100 axle counting system has already been approved by the Federal German Railways Office (EBA) and German Railways and has proven itself in operation
A new, lean relay block interface for the connection of Trackguard Simis D to relay interlockings, mechanical interlockings and electromechanical interlockings has been approved by the Federal German Railways Office.
Thanks to additional functions, signals can also be connected via fiber-optic cables.
The computer architecture of Trackguard Simis D can be centralized or decentralized, depending on the customer's requirements. The distance between interlocking and field elements and the cable-laying work can thus be optimized and minimized.
The space requirement of this new interlocking system has been considerably reduced by using integrated and decentralized element operating modules. Existing systems and components of an operator can be connected.