Block transmission systems

Smart block transmission systems for safe digital railways

Designed for the safe and cost-efficient transmission of block information in urban and suburban railways as well as in mainline and metro networks, these systems offer a safe and reliable way of converting and transmitting digital data.

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Data communication module

Modular, digital and safe data transmission

The compact Clearguard DCM 150 is based on Trackguard Simis FM technology, a reliable and proven platform running all Sinet-xCMs product applications (e.g. ACM 200, ACM 250, TCM 100). The module has been developed according to the CENELEC EN 50126, EN 50128 and EN 50129 standards and conforms to the highest safety integrity level, SIL 4. It provides up to 12 safe inputs and 12 safe outputs (or 24 non-safe) via an optocoupler or potential-free relay contact, respectively, to transmit block information safely via a serial interface.

Maximum efficiency over the entire lifecycle

A scalable and flexible solution

The Clearguard DCM 150 modular architecture allows the system to be tailored to individual customer requirements and applications. The data configuration is safely stored and easily loaded on the programmable non-volatile memory (ID plug) – offering improved availability.

  • Modular system architecture
  • Standard platform for all trackside modules (e.g. ACM, TCM, SCM, PCM)
  • Dual IP network with VLAN support
  • Serial interface via Ethernet (e.g. RaSTA, WNC+)
  • Wide range of applications with potential-free relay contact and optocoupler interface
  • Maintenance-free module
  • User-friendly configuration data
  • Quick configuration exchange with minimum or no impact on line availability

The beginning of smart digital block data transmission

Product features

  • 12 safe inputs and 12 safe outputs
  • Ethernet-based serial interfaces
  • 2-out-of-2 redundant configuration
  • Dual IP network connection
  • Diagnostics and engineering via local website
  • Easy and quick replacement of data configuration via ID plug
  • Unlimited control distance using conventional IT components
  • Maintenance-free module
  • Reliable platform deployed worldwide
  • CENELEC SIL 4 compliant


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