Migrating rail networks from analogue to TETRA
Command and control communication systems provider Prescom is overseeing the switch from analogue to a digital TETRA radio system on two busy RATP rail lines in Paris.
The migration of a professional radio network is rarely an easy task. This kind of operation becomes critical when several months or years are needed to fully deploy new digital radio terminals in trains, while having to keep two radio systems in operation simultaneously during the rollout period.
The deployment is made even more difficult when it involves installing new radio systems on one of the world’s busiest railway lines carrying more than one million passengers every working day. The Regional Express Network of RATP (the Parisian urban transport operator) is a network comprising two main RER lines running through the Paris region from east to west and from north to south. To ensure the security of the passengers and to allow an efficient management of the lines, the trains communicate through a radio system with the ground and a control centre.
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Source: www.wireless-mag.com
