Juniper QFX5100, Hardware Manual

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Figure 54: Removing a QFX-EM-4Q Expansion Module from a
QFX5100-24Q Switch
Related
Documentation
Installing an Expansion Module in a QFX5100 Switch on page 198
•
•
Installing and Removing QFX5100 Switch Hardware Components on page 193
•
Field-Replaceable Units in a QFX5100 Switch on page 8
•
QFX5100 Switch Hardware Overview on page 3
Installing a Fan Module in a QFX5100 Switch
The fan modules in a QFX5100 switch 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: Replace a failed fan module with a new fan module within 1 minute
of 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 QFX5100 switch, ensure that you have taken the
necessary precautions to prevent electrostatic discharge (ESD) damage (see
“Prevention
of Electrostatic Discharge Damage” on page 142 ).
To install a fan module in a QFX5100 switch (see Figure 55 on page 202 and
Figure 56 on page 202 ):
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.
201 Copyright © 2014, Juniper Networks, Inc.
Chapter 20: Replacing Components