NOTE: The fan module provides FRU-to-port or port-to-FRU airflow,
depending on the switch product SKU you purchase. In legacy switches, or
switches with an LCD, this airflow is called front to back and back to front.
Before you install a fan module in a QFX5110, ensure that you have taken the necessary
precautions to prevent electrostatic discharge (ESD) damage (see “Prevention of
Electrostatic Discharge Damage” on page 158).
To install a fan module in a QFX5110 (see Figure 36 on page 109):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
2. Taking care not to touch the connectors, remove the fan module from its bag.
3. Align the module with the open slot on the management panel of the chassis and
slide it in until it is fully seated.
Figure 36: Installing a Fan Module in a QFX5110
CAUTION: Damage can occur if you attempt to install a fan module into
a chassis with a different airflow direction. Compare the switch product
SKU with the airflow marking on the handle to ensure thatyou are installing
a fan module with the same airflow direction as the chassis. The fan
modules are designed so that they can only be inserted into the QFX5110
product SKU that supports the same airflow type. See “QFX5110 Cooling
System and Airflow Description” on page 39 for more information.
4. Using a Phillips screwdriver, turn the locking screw until it is tight.
Related
Documentation
QFX5110 Cooling System and Airflow Description on page 39•
• QFX5110 Field-Replaceable Units on page 25
• QFX5110 Management Panel on page 34
109Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Maintaining Components
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