this section explains how to connect ac or dc power to cisco 3600 series routers,and how up both ac-and dc-power routers.

    if you have a dc-powered router,refer to the"connecting router to a dc-input supply"sectoin on page3-35.if you have an ac-powered router,refer to the"powering on the router"section on page 3-43.

    if you have a cisco 3660 router, also refer to the "hot swapping power supplies" section on page 6-1, which discusses both ac and dc power supplies for cisco 3660 routers.