Replacing an mx480 dc power supply, Removing an mx480 dc power supply, Replacing an mx480 dc – Juniper Networks MX480 User Manual

Page 254

Figure 119: Installing an AC Power Supply in an MX480 Router

Documentation

Preventing Electrostatic Discharge Damage to an MX480 Router on page 248

•

MX480 AC Power Supply Description on page 42

Replacing an MX480 DC Power Supply

Removing an MX480 DC Power Supply on page 230

Installing an MX480 DC Power Supply on page 232

Removing an MX480 DC Power Supply

Before you remove a power supply, be aware of the following:

NOTE:

The minimum number of power supplies must be present in the router

at all times.

WARNING:

Before performing DC power procedures, ensure that power is

removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.

CAUTION:

To maintain proper cooling and prevent thermal shutdown of the

operating power supply unit, each power supply slot must contain either a

230

MX480 3D Universal Edge Router Hardware Guide