The Union of Signalling Industry is an industrial consortium that developed the technical specifications for the European Rail Traffic Management System. While primarily a European standard, North American signaling engineers reference UNISIG protocols when integrating advanced train control systems or evaluating interoperable signaling hardware from global vendors.
The new balise readers have to meet UNISIG specifications before we can test them on the test track.
Related terms
ETCS
The European Train Control System is the signaling and train protection component of ERTMS.
ERTMS
The European Rail Traffic Management System is a unified standard for railway signaling and control.
Eurobalise
A track-mounted transponder used to transmit location and signaling data to a passing train.