I have product R15RS, a RS232 driven SPDT relay controller. I am unable to get it to connect with the base station. Upon further inspection I noticed the LED is not illuminated at any point in the process. I disconnect the serial connector and relay, plug in the power supply and get no light. I have tried every other configuration and had the same results. I just received this controller and have not gotten it to work yet.
What steps should I take to troubleshoot the power issue? Is it possible a brand new controller is bad?