Posted on Apr 23, 2012

This circuit shows a typical multiplex system intended to carry one of 8 inputs into a remote location. A 5-V pulse train is sent down a separate channel to perform timing and synchronizing functions. A 15-V reset pulse is superimposed on the 5-V clock, which is detected by the MM74COO in the receiver.

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Using this system, many remote points can be monitored, orie at a time, at any of several locations.

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