Research methods: By analysis of the relay interfaces among the existing signal systems，a series of guidable technical measures are put forward for the train control center interface on basis of the CTCS2 and the possibility is also analyzed of adopting the international standard safety digital interfaces.
Research results: The train control centre interfaces for CTCS2 adopting the international standard safety digital interface can overcome the inherent disadvantages of the existing relay interfaces. This will have the important significance in developing and applying the domestic high speed railway equipment with plug and play function.
Research Conclusions: The train control centre digital interfaces for CTCS2 is safe and reliable. It is feasible to achieve the interconnection between equipment with plug-and-play function.
2007, Vol. 24 
