Mx480 Power System Description - Juniper MX480 Hardware Manual

MX480 Universal Routing Platform Hardware Guide

MX480 Power System Description

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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: The router cannot be powered from AC and DC power supplies
simultaneously.
Redundant power supplies are hot-removable and hot-insertable, as described in
Field-Replaceable Units (FRUs)" on page
CAUTION: 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.
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.
NOTE: 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.
Connecting Power to an AC-Powered MX480 Router with Normal-Capacity Power
Supplies on page 205
Connecting Power to a DC-Powered MX480 Router with Normal Capacity Power
Supplies on page 207
Replacing an MX480 AC Power Supply on page 318
MX480 Chassis Grounding Specifications on page 143
MX480 Router Grounding Cable Lug Specifications
226.
Copyright © 2019, Juniper Networks, Inc.
"MX480