Dc Power Supply Configurations - Juniper MX240 Hardware Manual

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Figure 14: DC Power Supply
Figure 15: High-Capacity DC Power Supply

DC Power Supply Configurations

In the DC power configuration, the router contains either one or two DC power supplies located at the
rear of the chassis in slots PEM0 and PEM2 (left to right). You can upgrade your DC power system from
one to two power supplies. A single DC power supply provides power to all components. A second DC
power supply provides redundancy. If a DC power supply in a redundant configuration fails, the redundant
power supply takes over without interruption.
High-capacity DC power supplies have a DIP switch that selects the power output.
NOTE: Move the input switch to 0 for 60 A input and position 1 for 70 A input.