Reply to "Spur power with DCS AIU control"

Gilly@N&WOGR Forum Member DIGITAL SUBSCRIBER

Pretty good except step 3. Either the + goes directly to the coil and the - gets switched by the AIU or the other way around. You would not have both + and - from the wall wart connected directly to the coil. If you connect both wires directly to the coil, the coil will energize and stay energized as long as power is applied.

As for which wire to switch, if the relay is listed as NPN, switch the - . If the relay is listed as PNP, switch the + . It is possible that it may not care.

4/1/2011:10 PM

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