Replacing Qfx5110 Components; Installing A Fan Module In A Qfx5110 - Juniper QFX5110 Series Hardware Documentation

CHAPTER 30

Replacing QFX5110 Components

IN THIS CHAPTER

Installing a Fan Module in a QFX5110 | 422

Removing a Fan Module from a QFX5110 | 423
Installing a Power Supply in a QFX5110 | 425
Removing a Power Supply from a QFX5110 | 427
Installing a Fan Module in a QFX5110
The fan modules in a QFX5110 are hot-removable and hot-insertable field-replaceable units (FRUs): you
can remove and replace them without powering off the switch or disrupting switch functions.
CAUTION:
removal to prevent chassis overheating. Before removing the fan module, ensure you
have a replacement fan module at hand.
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
page 242).
Replace a failed fan module with a new fan module within 1 minute of
"Prevention of Electrostatic Discharge Damage" on
422