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Rail signal device

Rail signal device

BITU

Block Information Transmission Unit

This device transmits essential operational data between the Radio Block Center (RBC) and the railway trackside components in real time.

Features

  • The BITU transmits collected information—such as block track circuit occupancy status, level crossing status and obstacle/rockfall detection status—to the station equipment via optical communication. 
  • The station equipment analyzes the input data received from field devices and based on the analysis results, performs I/O control to provide integrated information related to block track circuits and safety equipment (e.g., level crossings, obstacle and rockfall detection systems) to the interlocking system.

Configuration

Design
Standards

  • Ensures system stability through dual-redundant relay architecture and optical ring management functions
  • Built-in real-time fault diagnosis enables predictive maintenance and reduces recovery time