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
Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches