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CHAPTER 17
Replacing Power Supply
•
Installing an AC Power Supply in an EX4550 Switch on page 203
•
Removing an AC Power Supply from an EX4550 Switch on page 204
•
Installing a DC Power Supply in an EX4550 Switch on page 206
•
Removing a DC Power Supply from an EX4550 Switch on page 207
Installing an AC Power Supply in an EX4550 Switch
The AC power supply in EX4550 switches is a hot-removable and hot-insertable
field-replaceable unit (FRU) installed in the rear panel of the switch: You can remove
and replace it without powering off the switch or disrupting switch functions.
Before you install an AC power supply in the switch:
•
Ensure you understand how to prevent electrostatic discharge (ESD) damage. See
“Prevention of Electrostatic Discharge Damage” on page 287
.
Ensure that you have the following parts and tools available to install the power supply:
•
ESD grounding strap
CAUTION:
Do not mix:
•
AC and DC power supplies in the same chassis.
•
Power supplies (
AFI
or
AFO
) and fan modules (
AIR IN (AFI)
or
AIR OUT
(AFO)
) with different airflow labels in the same chassis.
NOTE:
Each power supply must be connected to a dedicated power source
outlet.
203
Copyright © 2015, Juniper Networks, Inc.
Summary of Contents for EX4550
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