I have hardwired smoke alarms that are interconnected. I would like to integrate them using the Kidde - Interconnect Accessories Smoke Relay Module: 408-Sm120X that was recommended in the article on Wiring Smoke & CO2 Detectors. I noticed that this particular relay has a 9V DC out. Could this be used to power the Konnected? Any recommendations on how to wire this particular relay? Thanks!