| 摘要 |
The present invention relates to a logic device designed with intrinsic safety and providing for the "AND", "OR", memory, complement and flip-flop logic functions. It consists of a logical operator 20, 21, 22, 23 and of an amplifier 24, 25 which are associated and vary in number according to the function to be carried out and are interconnected by two-wire, floating and mutually insulated links. The device according to the invention is intended in particular for electronic equipment and for the automatic piloting of trains, for railway signalling and, more generally, for any system intended for protecting persons or goods. <IMAGE>
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