Question: A telecom circuit has a channel of three call set-up slots A, B, C. It is observed that the circuit gives noise in the line

A telecom circuit has a channel of three call set-up slots A, B, C. It is observed that the circuit gives noise in the line when there are two or all three slots occupied at a time. The remaining cases are noise-free. If the occupied slot is represented by “1” and unoccupied by “0” in the functional table, design a circuit which turns on a LED to alert the maintenance engineer when any of the noisy combinations of the slots are introduced.

Course: Digital Logic Design

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