Juniper EX4100

Maintain the EX4100 Cooling System
IN THIS SECTION
Install a Fan Module in an EX4100 Switch | 180
Remove a Fan Module from an EX4100 Switch | 182
Install a Fan Module in an EX4100 Switch
Before you install a fan module in the switch:
• Ensure that you understand how to prevent electrostac discharge (ESD) damage. See Prevenon of
Electrostac Discharge Damage .
• Ensure that you have the following parts and tools available to install a fan module in the switch
chassis:
• ESD grounding strap
• Phillips (+) screwdriver, number 2
Each fan module is a hot-removable and hot-insertable eld-replaceable unit (FRU) installed in the rear
panel of the switch. You can remove and replace the fan module without powering o the switch or
disrupng switch funcons.
CAUTION: Avoid mixing:
• AC and DC power supplies in the same chassis.
• Fan modules with dierent direcons for the airow in the same chassis.
• Power supplies with dierent direcons for the airow in the same chassis.
• Power supplies and fan modules with dierent direcons for the airow in the same
chassis.
To install a fan module in an EX4100 switch:
180