Juniper QFX5240 - Install a Fan Module in QFX5240 Switches

Install a Fan Module in QFX5240 Switches
Before you install a fan module in a QFX5240 switch, ensure that you have taken the necessary
precauons to prevent electrostac discharge (ESD) damage.
The fan modules in a QFX5240 switch are hot-removable and hot-insertable eld-replaceable units
(FRUs); you can remove and replace them without powering o the switch or disrupng switch
funcons.
CAUTION: To ensure proper airow, keep a failed fan module in place unl you have a
replacement fan module at hand. Do not run the device with an open fan tray slot for
an extended amount of me.
NOTE: The fan module provides FRU-to-port or port-to-FRU airow depending on the switch
product variant you purchase.
To install a fan module in a QFX5240 (see Figure 32 on page 92):
1. Aach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
2. Take care not to touch the connectors as you remove the fan module from its bag.
3. Align the module with the open slot and slide it in unl it is fully seated. Figure 32 on page 92
shows how to install a fan module in a QFX5240 switch.
Figure 32: Install a Fan Module in a QFX5240 Switch
92