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Main functions

Among others it is EBA approved, and will be installed along the track as a decentralised system concept and linked via standard interfaces. Which operating points along the track are to be used and which modules are required is specific to the project and customer, whereby each system is generally implemented on the same platform and can be divided into three levels. 

The operator and diagnostic level are used to communicate between devices on a line. Communication takes place on a secure plane between neighbouring stations located on the route via STRENET transmission network. Individual ZSB 2000 stations control and safeguard local movement of trains at safe levels. The field level elements are connected to the dependency level by means of a serial standard interface that acts as a CAN bus.

The following types may be on ZSB 2000 trails:

  • station
  • block post
  • passing point junction
  • block adaptation at the start and end of the section

Each of these operation points work independently with a safe system core and controls a project- dependent number of field elements. Big stations are built with several operation points.

The ZSB 2000 processes the following elements: 

  • electrically remote-operated switches
  • electrically remote-operated scotch blocks
  • single-slip and double-slip switches
  • reversible switches
  • electrically locally operated switches and scotch blocks
  • manually operated switches and scotch blocks with key requirement
  • train routes
  • shunting routes
  • areas of local service
  • interlocking route safety
  • overrun length path
  • main signals
  • pre-signals
  • multi-section signals
  • speed indicators
  • shunting signals
  • warning signals
  • additional signals
  • automatic train control
  • track clear detection with axle counterside
  • blocks
  • auxiliary operation devices
  • various block adaptations to 15 signal box systems

All elements are individually configured depending on the terrain in which the system operates.

Central service, visualization instructions and command settings:

The interlocking system ZSB 2000, a central operating console for dispatcher, has been developed for the management of trains. The dispatching and diagnostic bus (DISPO) as well as the station computers are linked with the computer of the train via SCI-CC (standard communications interface command and control), which can be also installed as DiB (design integrated dispatching centre). This operating console provides a central display and operating desk for transmission. The dispatcher desk is designed according to safety integrity level SIL 0.

The displayed images are automatically updated after each change of the electronic stopper of the interlocking ESTW on the computer. In addition to that an update can be initiated by the central managment. It is also possible to modify technical settings for routes or to set individual and auxiliary operations. These being safely displayed, processed and transmitted in signalling terms with the aid of various processes such as display, input and command safeguards. Diagnostic information can also be displayed at the dispatcher operating desk.

To enable operations to be carried out automatically, a ZSB 2000 track can be equipped with a dispatching system. This system outside the safety core is based on the system which is safe in signalling terms and accordingly is at the same level as the operating console. When dispatching is running , assistance of the dispatcher is not necessary for the normal progress of the operations. As a result the movement operations are progressed automatically and the routes needed are set automatically and in good time.

To enable these tasks to be realised, the overall ZSB 2000 system is divided into two parts:

  • Safeguarding of the roadway. This fulfils the tasks of an interlocking system. These are the safeguarding of the train movements in stations and along the tracks.
  • Train control system. This fulfils the dispatching tasks such as locating and identifying the trains in the network and actuating train routes.

The selection of routes is controlled by the timetable control, which sets the routes automatically via a timetable stored in the system.

Local operating and display functions:

All ZSB 2000 systems are equipped in the respective setting unit with a dispatching and diagnostic computer which is decoupled from the safety level. This unit, which is designated a station computer, permits the local system to be operated and displayed, and is primarily for maintenance and service.

The operational possibilities for the operating service can be made available with the auxiliary keys arranged in the outer area. In addition auxiliary actions with responsibility for the safety thereof or the shunting route requirements (ÖVA) can be carried out from this device.


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