Patent ID: 8049443

Claim:
An interface device for interrelating an automation controller unit, a power source, and two or more functional loads, comprising: a. Two or more function input terminals for receiving function signals from an automation controller unit; b. A control circuit for responding to said signals, coupled to said function input terminals, and having a corresponding relay coupled to each function signal input terminal; c. Two or more load terminals for transferring power to a load, each associated with a corresponding function input terminal; d. A power path circuit selectably coupled to said load terminals and controlled by said control circuit; e. A power source input terminal coupled to said power path circuit; f. A first switch coupled to the relays and interposed in said control circuit, having alternative positions for (i) connecting said function input terminals to said corresponding responsive relays, and (ii) bypassing the function input terminals; and g. A second switch, coupled to the first switch, interposed between the power source input terminal and the load terminals, for selecting the connection of the power path circuit to any one of the load terminals.