Figure 55: Installing a Fan Module in an EX4550 Switch
NOTE: If you have a Juniper J-Care service contract, register any addition,
change, or upgrade of hardware components at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp .
Failure to do so can result in significant delays if you need replacement parts.
This note applies if you change the type of power supply or add a new type
of expansion module. It does not apply if you replace these components with
the same type of component.
Related
Documentation
Removing a Fan Module from an EX4550 Switch on page 200•
• Cooling System and Airflow in an EX4550 Switch on page 35
• Field-Replaceable Units in EX4550 Switches on page 18
• AC Power Cord Specifications for an EX4550 Switch on page 86
• EX4550 Switches Hardware Overview on page 3
Removing a Fan Module from an EX4550 Switch
The 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.
Ensure that you have the following parts and tools available:
•
Phillips (+) screwdriver, number 2
•
An antistatic bag or an antistatic mat
•
A replacement fan module
To remove a fan module from the switch (see Figure 56 on page 201):
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Loosen the screw securing the fan module by using the screwdriver.
WARNING: To avoid injury, do not touch the fan with your hands or any
tools as you slide the fan module out of the chassis—the fan might still
be running.
Copyright © 2015, Juniper Networks, Inc.200
EX4550 Switch Hardware Guide
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