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• Installing a Fan Tray in an EX-series Switch  

• Related Topics
• Removing a Fan Tray from an EX-series Switch
• Installing and Removing EX-series Switch Hardware Components
• Cooling System in an EX 3200 Switch
• Cooling System in an EX 4200 Switch
• Field-Replaceable Units in EX-series Switches
• EX 3200 Switch—Rear-Panel Description
• EX 4200 Switch—Rear-Panel Description

Installing a Fan Tray in an EX-series Switch

EX-series switches have a single field-replaceable unit (FRU) fan tray on the rear panel. The fan tray is hot-removable and hot-insertable FRU: you can remove and replace it while the switch is functioning without turning off power to the switch or disrupting switch functions.

Ensure you have the following tools and parts available to install a fan tray in an EX-series switch chassis:

• Electrostatic discharge (ESD) grounding strap
• Phillips (+) screwdriver, number 2

Ensure you understand how to prevent ESD damage (see Preventing Electrostatic Discharge Damage).

To install a fan tray in an EX-series switch chassis (see Figure 1 and Figure 2):

1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.

   Caution: If you are installing a fan tray in an EX 3200 switch, ensure the fan faces upwards. If you are installing a fan tray in an EX 4200 switch, ensure the fans face downwards.

2. Remove the fan tray from its bag. Using both hands, align the tray with the fan tray guides on the fan tray slot on the rear panel of the chassis and slide it in until it is fully seated.
3. Tighten the screw or screws on the fan tray by using a Phillips (+) screwdriver, number 2.

Figure 1: Installing a Fan Tray in an EX 3200 Switch

Figure 2: Installing a Fan Tray in an EX 4200 Switch