INDUSI systems

Automatic Train Protection System RAS90 - PZB90

Automatic train protection system RAS90 is an INDUSI PZB90 based ATP system. It is designed in order to increase the safety of railway traffic. RAS90 system consists of central device RAS90, locomotive balise, track balises and signalling and operating elements located in the locomotive cabin.


The main function of the system is to initiate automatic braking if the driver doesn’t comply with safety regulations. RAS90 is continuously monitoring the speed of the train and does not allow overspeeding at any point during the run. RAS90 can be additionally upgraded with various other functions like dead man’s system, train driver registration, event recording, speed monitoring, wheel lubrication and similar.


Track and locomotive balises are certified in TUV Rheinland according to EN norms 50121-3, 50121-4, and 50125-3. RAS90 is developed and certified according to EN 50155, EN 50121-3 and EN61373.


Although RAS90 is a microprocessor based high tech system, maintenance procedures are made to be as user friendly as possible. Diagnostic application was developed for the ease of fault diagnosis and system check. Additionally, peripheral units have their own test devices – speedometer is tested by SB18 testing unit and locomotive balise is tested by LMI18.


Connection to other systems on the vehicle is enables by isolated CAN bus. Connection to the central diagnostic system (CENDIS) is realised through xG router or Wi-Fi.


REC90 is a module developed specifically for event recording and it can be used with PC application IRAS viewer. All diagnostic data can be archived in ALTPRO central diagnostic system CENDIS.

System benefits

ALTPRO in the International Exhibition for Track Technology (IAF)