A NEW GENERATION OF SIGNAL-BOXES BASED ON FAIL-SAFE MICRO-COMPUTERS

Siemens have developed a new generation of signal-boxes based on modular systems using up-to-date micro-computer equipment. Several prototypes have been installed in the Federal Republic of Germany and elsewhere, with a very high efficiency and reliability rating. The article describes the MES 80 and SIMIS micro-computer systems as well as the input and monitoring equipment, interpretation and announcing equipment and the interface.