I just installed NM-1T3/E3 in Cisco 3745. As my understanding, neither Cisco 3745 nor NM-1T3/E3 support OIR. So before i install the card, i power off the router. After i installed the card, i power on the router again. When I show ip int brief , i didnt see the card in the output. But when show diag, i saw the card was installed in slot 4. Can you anyone explain why this happened?