I am trying to get my 2nd keypad setup on the ELk but am running into problems with it. I am hooking it up through a DBH and have verified the wiring. I have set the addres on it to 2. When I power up the system the keypad shows the system info and then just shows "Lost Comm.". I tried with a diff keypad and got the same issue. The main keypad works fine. When I unplugged the main one and tried only the 2nd one I still got the error. Any suggestions?