Juniper Networks EX3200 manual Cooling System and Airflow in an EX4200 Switch

Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches

rear panel is lit. You can see the status of fans and the temperature from the Show Environment Status option in the Status menu in the LCD panel.

Related Topics ■ Field-Replaceable Units in EX3200 and EX4200 Switches on page 16

■Rear Panel of an EX3200 Switch on page 9

■Prevention of Electrostatic Discharge Damage on EX Series Switches on page 236

■Installing a Fan Tray in an EX3200 or EX4200 Switch on page 132

■Removing a Fan Tray from an EX3200 or EX4200 Switch on page 174

Cooling System and Airflow in an EX4200 Switch

The cooling system in an EX4200 switch consists of a field-replaceable unit (FRU) fan tray with three fans (see Figure 22 on page 32). The fan tray is located at the rear of the chassis and provides side-to-rear chassis cooling (see Figure 23 on page 33).

Figure 22: Fan Tray Used in an EX4200 Switch

32■ Cooling System and Airflow in an EX4200 Switch