On the MultiplusII RJ12 I/O, I wish to use the Aux1 input to detect a switch event, (Generator transfer switch is on), AND use the K1 relay (open collector), with 48Vdc from the battery, to run a separate relay. I presume those two can't be used together, where I put 48V to the Ground pin of the RJ12 IO connector for the K1 relay, but which would also maintain the Aux1 in the "high" state. And if the Aux1 is pulled high, rather than to ground, it will not work if I attempt to ground it with my switch event. Is that right? Do I need to leave Ground without any voltage, to use the Aux1 pin as in input? That is, not use both a relay to K1 and an Aux input at the same time?