CHAPTER 16
Replacing Cooling System Component
Installing a Fan Tray in an EX9200 Switch
Copyright © 2017, Juniper Networks, Inc.
Installing a Fan Tray in an EX9200 Switch on page 183
Removing a Fan Tray from an EX9200 Switch on page 186
The fan tray in an EX9200 switch is a hot-insertable and hot-removable field-replaceable
unit (FRU); You can remove and replace it while the switch is running without turning off
power to the switch or disrupting switching functions.
Before you begin to install a fan tray:
Ensure you understand how to prevent electrostatic discharge (ESD) damage. See
"Prevention of Electrostatic Discharge Damage" on page
Ensure that you have the following parts and tools available:
ESD grounding strap
Phillips (+) screwdrivers, number 1 and 2
CAUTION:
The fan tray can be removed and replaced while the switch is
operating. However, the fan tray must be replaced within 2 minutes of
removing the fan tray to prevent the chassis from overheating.
To install a fan tray in an EX9200 switch:
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
1.
point on the chassis.
Grasp the fan tray handle, and insert it straight into the chassis. Note the correct
2.
orientation by the
This side up
Tighten the captive screws using a screwdriver on the fan tray faceplate to secure it
3.
in the chassis.
329.
label on the top surface of the fan tray.
183