Railway Infrastructure Upgrade

Mass Transit Railway signalling, control and monitoring systems are heavily based on legacy systems that require refurbishment and maintenance to deal with ever-expanding passenger demand and improved safety and comfort levels. These legacy systems can rarely be replaced wholesale so migration to new systems requires adaptable interface boards that can allow these legacy devices to be integrated with modern systems.


railway signalling

Railway Infrastructure Upgrade System

The HDLC-cPCIs provides 4 HDLC synchronous serial data ports for establishing point-to-point links to a wide range of legacy rail equipment. Each port of the HDLC-cPCIs has a selectable RS-232/RS-422/RS-485 electrical interface and has 2000Vrms Galvanic Isolation for the demanding transport environment. The host system provides an Ethernet connection allowing connection to TCP/IP networking infrastructure. This system allows control and supervision of legacy HDLC enabled equipment from remote control centers.

  • 4 channel concurrent operation
  • Individually configurable for HDLC / Asynchronous operation
  • 2000 Vrms galvanic isolation port
  • Selectable RS232/422/485 electrical interface
  • Extended temperature operation
  • Drivers for Windows, Linux

Products Used

CompactPCI Serial HDLC Communications


HDLC Communications Controller
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