I am attempting to wire this relay http://www.canakit.com/4-port-usb-relay-controller.html to this lock http://www.southco.com/en-us/em-05. I have done some work with Arduinos before, but I am not an electrical engineer, therefore I am having trouble figuring out how to wire these 2 together in order to get the relay to power (and open) the lock. Any help would be appreciated!
The relay channels each have NC, COM, and NO. The lock has GRD, POW, SIG, COM, and NO.