MX480 Power System Description
The MX480 router uses either AC or DC power supplies. The MX480 router is configurable with two, three, or four AC power supplies or two or four DC power supplies. The power supplies connect to the midplane, which distributes the different output voltages produced by the power supplies to the router components, depending on their voltage requirements. Each power supply is cooled by its own internal cooling system.
The router cannot be powered from AC and DC power supplies simultaneously.
Redundant power supplies are hot-removable and hot-insertable, as described in MX480 Field-Replaceable Units (FRUs).
When you remove a power supply from a router that uses a nonredundant power supply configuration, the router might shut down depending on your configuration.
Enhanced AC and DC power supplies are an upgrade for the MX480 router, and satisfy power requirements for higher-density DPCs. When upgrading to enhanced power supplies, always upgrade power supplies in adjacent slots.
Routers configured with DC power supplies are shipped with a blank panel installed over the power distribution modules. Routers configured with AC power supplies have no blank panel.