Juniper OCX1100, Hardware Manual

Page: 125 / 204

CHAPTER 14
Replacing Cooling System Component
• Installing a Fan Module in an OCX1100 Switch on page 105
• Removing a Fan Module from an OCX1100 Switch on page 106
Installing a Fan Module in an OCX1100 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 install:
Fan modules 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.
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 167 .
Ensure that you have the following parts and tools available to install a fan module in
the switch chassis:
•
ESD grounding strap
•
Phillips (+) screwdriver
1.
Ensure that you have the correct fan module. The label AIR IN (AFI) or AIR OUT (AFO)
on the fan module must match the label AIR IN (AFI) or AIR OUT (AFO) on the installed
power supply.
2.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
105 Copyright © 2017, Juniper Networks, Inc.