In most of electrical SCADA systems, RTU (Remote Terminal Unit) panels are very common in power transmission & distribution companies. There are several cards inside each RTU panel, some are binary input/output cards and the others are analogue input/output. I would ask about the function of like these cards? These are some images of that cards:
closed as off topic by Vitaly Mijiritsky Nov 13 '11 at 14:29
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