Figure 34: Installing A Fan Module In An Ex4600 Switch - Juniper EX4600 Series Hardware Manual

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Copyright © 2014, Juniper Networks, Inc.
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 an EX4600 switch, ensure that you have taken the
necessary precautions to prevent electrostatic discharge (ESD) damage (see
of Electrostatic Discharge Damage" on page
To install a fan module in an EX4600 switch (see
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
1.
point on the chassis.
Taking care not to touch the connectors, remove the fan module from its bag.
2.
Align the module with the open slot on the management panel of the chassis and
3.
slide it in until it is fully seated.
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 that you 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 EX4600
switch product SKU that supports the same airflow type. See
System and Airflow in an EX4600 Switch" on page 13
Using a Phillips screwdriver, turn the locking screw until it is tight.
4.

Figure 34: Installing a Fan Module in an EX4600 Switch

Removing a Fan Module from an EX4600 Switch on page 176
Cooling System and Airflow in an EX4600 Switch on page 13
Field-Replaceable Units in an EX4600 Switch on page 6
Management Panel of an EX4600 Switch on page 9
Chapter 20: Replacing Components
120).
Figure 34 on page 175
for more information.
"Prevention
):
"Cooling
175