Replacing Dc Power Supply - Juniper MX204 Hardware Manual

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Replacing an MX204 DC Power Supply
Removing an MX204 DC Power Supply
Copyright © 2018, Juniper Networks, Inc.
Attach the power cord to the AC power source, and switch on the dedicated
5.
customer-site circuit breaker. Follow the instructions for your site.
Observe the status LED on the power supply faceplate. If the power supply is correctly
6.
installed and functioning normally, the status LED lights green steadily.
Figure 47: Installing an AC Power Supply
MX204 Power System Description on page 21
MX204 Router AC Power Specifications on page 43
AC Power Circuit Breaker Requirements for the MX204 Router on page 45
Prevention of Electrostatic Discharge Damage on page 156
Removing an MX204 DC Power Supply on page 99
Installing an MX204 DC Power Supply on page 101
Before you remove a power supply, be aware of the following:
NOTE: The minimum required number of power supply modules 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.
Chapter 17: Replacing Power System Components
99