CHAPTER 15
Replacing Cooling System Component
•
Installing a Fan Module in an EX4300 Switch on page 217
•
Removing a Fan Module from an EX4300 Switch on page 219
Installing a Fan Module in an EX4300 Switch
Each fan module 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.
CAUTION:
Do not mix:
•
Fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
)
in the same chassis.
•
Power supplies with different airflow labels (
AIR IN (AFI)
and
AIR OUT
(AFO)
) in the same chassis.
•
Power supplies and fan modules with different airflow labels (
AIR IN (AFI)
and
AIR OUT (AFO)
) in the same chassis.
•
AC and DC power supplies in the same chassis.
Before you install a fan module in the switch:
•
Ensure you understand how to prevent electrostatic discharge (ESD) damage. See
“Prevention of Electrostatic Discharge Damage” on page 299
.
Ensure that you have the following parts and tools available to install a fan module in
the switch chassis:
•
ESD grounding strap
•
Phillips (+) screwdriver, number 2
217
Copyright © 2015, Juniper Networks, Inc.
Summary of Contents for EX4300
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