I just purchased 2 cisco 1841 routers with csu cards in them to connect a remote office through a T1. I have them setup but I am by no means a cisco expert. I would like to test them here before I ship one of them to our remote office. When I connect the 2 routers with a straight through or crossover cable all I get is a yellow alarm light on the csu card. Is there any way to connect these so I can confirm everything is setup correctly before I ship the one?