Mx480 Fan Led; Mx480 Power System Description - Juniper MX480 Hardware Manual

MX480 Fan LED

Each fan has an LED that displays its status. The fan LEDs are located on the top left of the craft interface.
For more information, see
SEE ALSO
Maintaining the MX480 Fan Tray | 291
Troubleshooting the MX480 Cooling System | 438

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.
CAUTION:
simultaneously.
Redundant power supplies are hot-removable and hot-insertable, as described in
Units (FRUs)" on page
CAUTION:
power supply configuration, the router might shut down depending on your
configuration.
NOTE:
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.
"Fan LED on the MX480 Craft Interface" on page
The router cannot be powered from AC and DC power supplies
280.
When you remove a power supply from a router that uses a nonredundant
41.
"MX480 Field-Replaceable
45