MX240 Power System Overview
The MX240 router uses either AC or DC power supplies. You can configure the MX240 router with either one or two high-line (220 V) AC power supplies, two or four low-line (110 V) AC power supplies, or one or two 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.
Redundant power supplies are hot-removable and hot-insertable. 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.
 | Caution: The router cannot be powered from AC and DC power supplies simultaneously. |
 | Note: Routers configured with only one or two power supplies are shipped with a blank panel installed over the power supply slots that are not populated. |
